/* roulang page: index */
:root {
  --primary: #0F766E;
  --primary-dark: #0B4F4A;
  --primary-light: #E6F4F2;
  --accent: #F26430;
  --accent-dark: #E0502B;
  --page-bg: #F6F4EF;
  --card-bg: #FFFFFF;
  --line: #E3E1DA;
  --ink: #1F2A28;
  --body: #4A5553;
  --meta: #8A9492;
  --footer-bg: #12201F;
  --section-pad-desktop: 96px;
  --section-pad-tablet: 56px;
  --section-pad-mobile: 40px;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-small: 8px;
  --shadow-card: 0 1px 2px rgba(15,118,110,.05);
  --shadow-hover: 0 12px 28px rgba(15,118,110,.12);
  --transition: .25s ease;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.7;
  color: var(--body);
  background: var(--page-bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: #0B5E59; text-decoration: underline; text-underline-offset: 4px; }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 14px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.skiplink { position: absolute; left: -9999px; top: 0; background: var(--primary); color: #fff; padding: 10px 20px; z-index: 9999; }
.skiplink:focus { left: 0; }
.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
section { position: relative; }
.section-pad { padding: 96px 0; }
.section-pad-sm { padding: 64px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.section-head .tag { display: inline-block; margin-bottom: 16px; }
.section-head h2 { color: var(--ink); font-size: 32px; font-weight: 800; line-height: 1.3; margin-bottom: 20px; }
.section-head p { font-size: 16px; color: var(--body); line-height: 1.7; }

.tag {
  display: inline-block; padding: 4px 14px; border-radius: 999px;
  font-size: 12px; font-weight: 600; letter-spacing: .5px;
  background: var(--primary-light); color: var(--primary);
}
.tag--accent { background: rgba(242,100,48,.12); color: var(--accent); }
.tag--white { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.25); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 32px; border-radius: var(--radius-btn);
  font-size: 16px; font-weight: 600; line-height: 1;
  transition: all var(--transition); text-decoration: none; cursor: pointer;
  border: 1.5px solid transparent; white-space: nowrap;
}
.btn:active { transform: scale(.98); }
.btn--lg { height: 52px; padding: 0 36px; font-size: 16px; }
.btn--sm { height: 36px; padding: 0 20px; font-size: 14px; }
.btn--block { width: 100%; }
.btn--primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn--primary:hover, .btn--primary:focus { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; text-decoration: none; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(242,100,48,.25); }
.btn--primary:active { transform: translateY(0); }
.btn--outline { background: transparent; border-color: rgba(255,255,255,.75); color: #fff; }
.btn--outline:hover, .btn--outline:focus { background: rgba(255,255,255,.12); border-color: #fff; color: #fff; text-decoration: none; }
.btn--outline-dark { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn--outline-dark:hover, .btn--outline-dark:focus { background: rgba(15,118,110,.08); border-color: var(--primary); color: var(--primary); }
.btn--white { background: #fff; color: var(--primary); border-color: #fff; }
.btn--white:hover, .btn--white:focus { background: var(--primary-light); color: var(--primary); border-color: var(--primary-light); }

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  transition: background .3s ease, box-shadow .3s ease, padding .3s ease;
  padding: 20px 0;
}
.site-header.scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--line);
  padding: 12px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand__icon { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; background: var(--primary); border-radius: 10px; }
.brand__text { font-size: 20px; font-weight: 800; color: var(--ink); letter-spacing: .5px; transition: color .3s ease; white-space: nowrap; }
.site-header:not(.scrolled) .brand__text { color: #fff; }
.main-nav { display: flex; align-items: center; gap: 36px; }
.main-nav a {
  font-size: 15px; font-weight: 500; color: var(--ink); text-decoration: none;
  position: relative; padding: 6px 2px; transition: color .2s ease;
}
.site-header:not(.scrolled) .main-nav a { color: rgba(255,255,255,.85); }
.main-nav a:hover, .main-nav a.active { color: var(--primary); text-decoration: none; }
.site-header:not(.scrolled) .main-nav a:hover { color: #fff; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  bottom: -2px; width: 20px; height: 3px; border-radius: 3px; background: var(--primary);
}
.site-header:not(.scrolled) .main-nav a.active::after { background: var(--accent); }
.header-cta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.header-login-btn { height: 40px; padding: 0 24px; font-size: 14px; }
.hamburger { display: none; width: 42px; height: 42px; border-radius: 10px; background: transparent; position: relative; z-index: 1002; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px auto; transition: all .3s ease; border-radius: 2px; }
.site-header:not(.scrolled) .hamburger span { background: #fff; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.site-header.scrolled .hamburger.open span { background: var(--ink); }

/* Off-canvas mobile nav */
.off-canvas { background: rgba(11,79,74,.98); color: #fff; width: 100%; max-width: 400px; }
.off-canvas.is-open { box-shadow: -10px 0 40px rgba(0,0,0,.3); }
.mobile-nav { padding: 80px 32px 40px; display: flex; flex-direction: column; gap: 0; height: 100%; }
.mobile-nav .mobile-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 48px; }
.mobile-nav .brand__text { color: #fff; font-size: 22px; }
.mobile-nav-list { flex: 1; }
.mobile-nav-list li { border-bottom: 1px solid rgba(255,255,255,.1); }
.mobile-nav-list a {
  display: block; color: rgba(255,255,255,.9); font-size: 22px; font-weight: 600;
  padding: 14px 0; transition: all .2s ease; text-decoration: none;
}
.mobile-nav-list a:hover { color: #fff; padding-left: 8px; }
.mobile-nav-list a.active { color: var(--accent); }
.mobile-nav-cta { margin-top: 32px; }

/* Hero */
.hero {
  position: relative; min-height: 700px; display: flex; align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center;
  color: #fff; overflow: hidden; padding: 140px 0 100px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(11,79,74,.82) 0%, rgba(11,79,74,.62) 55%, rgba(11,79,74,.4) 100%);
}
.hero__content { position: relative; z-index: 2; padding-right: 24px; }
.hero__eyebrow {
  display: inline-block; padding: 6px 18px; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22);
  font-size: 13px; font-weight: 500; letter-spacing: 1px; margin-bottom: 28px;
  color: rgba(255,255,255,.9);
}
.hero__title {
  font-size: 44px; font-weight: 800; line-height: 1.3; color: #fff;
  letter-spacing: 1px; margin-bottom: 20px;
}
.hero__title .accent { color: var(--accent); }
.hero__subtitle { font-size: 18px; line-height: 1.7; color: rgba(255,255,255,.75); max-width: 480px; margin-bottom: 36px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 36px; }
.hero__badges { display: flex; gap: 12px; flex-wrap: wrap; }
.hero__badges span {
  padding: 8px 18px; border-radius: 999px; background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18); font-size: 13px; font-weight: 500;
  color: rgba(255,255,255,.9);
}
.hero__wave { position: absolute; bottom: -1px; left: 0; right: 0; z-index: 2; pointer-events: none; }

/* Login card */
.login-card {
  position: relative; z-index: 2; background: #fff; color: var(--body);
  border-radius: 16px; box-shadow: 0 24px 60px rgba(0,0,0,.15);
  padding: 36px; max-width: 440px; margin-left: auto;
}
.login-card__header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.login-card__icon { width: 44px; height: 44px; border-radius: 12px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.login-card__header h3 { font-size: 18px; font-weight: 700; color: var(--ink); line-height: 1.4; }
.login-card__header p { font-size: 13px; color: var(--meta); }
.login-card__steps { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; padding: 16px; background: var(--primary-light); border-radius: 12px; }
.step { display: flex; align-items: center; gap: 14px; }
.step__num {
  width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: #fff;
  font-size: 14px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.step__content { display: flex; flex-direction: column; }
.step__content strong { font-size: 14px; color: var(--ink); font-weight: 600; }
.step__content span { font-size: 12px; color: var(--meta); }
.login-card__form { display: flex; flex-direction: column; gap: 16px; }
.login-card__form label { font-size: 13px; font-weight: 600; color: var(--ink); display: flex; flex-direction: column; gap: 6px; }
.login-card__form input {
  height: 46px; border: 1px solid var(--line); border-radius: 10px; padding: 0 14px;
  font-size: 14px; transition: border-color .2s ease, box-shadow .2s ease;
  background: #FAFAF8; color: var(--ink);
}
.login-card__form input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(15,118,110,.12); outline: none; background: #fff; }
.login-card__code-row { display: flex; gap: 10px; }
.login-card__code-row input { flex: 1; }
.btn--code { height: 46px; padding: 0 16px; border-radius: 10px; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; flex-shrink: 0; transition: all .2s ease; }
.btn--code:hover { background: rgba(15,118,110,.15); }
.login-card__footer { text-align: center; margin-top: 16px; }
.login-card__footer a { font-size: 13px; color: var(--meta); text-decoration: underline; text-underline-offset: 3px; }
.login-card__footer a:hover { color: var(--primary); }

/* Pain points */
.pain-points { background: var(--page-bg); padding: 96px 0; }
.pain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 40px; }
.pain-card {
  background: var(--primary-light); border-radius: 12px; padding: 32px 28px;
  transition: background .25s ease, transform .25s ease;
}
.pain-card:hover { background: #DBEFED; transform: translateY(-3px); }
.pain-card:hover .pain-card__icon svg path { stroke: var(--accent); }
.pain-card__icon { width: 44px; height: 44px; margin-bottom: 18px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(255,255,255,.7); border: 1px solid rgba(15,118,110,.15); }
.pain-card__icon svg path { transition: stroke .25s ease; }
.pain-card h3 { font-size: 18px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.pain-card p { font-size: 14px; color: var(--body); line-height: 1.6; }

/* Solutions */
.solutions { background: #fff; padding: 96px 0; }
.solution-row { margin-bottom: 80px; align-items: center; }
.solution-row:last-child { margin-bottom: 56px; }
.solution-row__img-wrap { position: relative; padding: 20px; }
.solution-row__img-wrap::before {
  content: ""; position: absolute; top: 0; right: 0; width: 78%; height: 78%;
  background: var(--primary-light); border-radius: 16px; z-index: 0;
}
.solution-row--reverse .solution-row__img-wrap::before { right: auto; left: 0; }
.solution-row__img-wrap img { position: relative; z-index: 1; border-radius: 14px; box-shadow: 0 12px 32px rgba(15,118,110,.1); }
.solution-row__content { padding: 16px 8px; }
.solution-row__content .tag { margin-bottom: 14px; display: inline-block; }
.solution-row__content h3 { font-size: 24px; font-weight: 700; color: var(--ink); margin-bottom: 12px; }
.solution-row__content p { font-size: 16px; color: var(--body); margin-bottom: 20px; max-width: 460px; }
.check-list { display: flex; flex-direction: column; gap: 10px; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; color: var(--body); }
.check-list li svg { flex-shrink: 0; margin-top: 4px; }

/* Login steps timeline */
.login-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 64px; padding-top: 56px; border-top: 1px solid var(--line); }
.login-step { text-align: center; padding: 24px 16px; position: relative; }
.login-step::after { content: ""; position: absolute; top: 36px; right: -16px; width: 32px; height: 2px; background: var(--line); }
.login-step:last-child::after { display: none; }
.login-step__num {
  width: 52px; height: 52px; border-radius: 50%; background: var(--accent); color: #fff;
  font-size: 22px; font-weight: 700; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; box-shadow: 0 6px 16px rgba(242,100,48,.3);
}
.login-step strong { display: block; font-size: 17px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.login-step p { font-size: 14px; color: var(--meta); max-width: 200px; margin: 0 auto; }

/* Results / metrics */
.results {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 80px 0; color: #fff; position: relative; overflow: hidden;
}
.results::before {
  content: ""; position: absolute; top: -120px; left: -120px; width: 280px; height: 280px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.06); pointer-events: none;
}
.results::after {
  content: ""; position: absolute; bottom: -80px; right: -60px; width: 200px; height: 200px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.05); pointer-events: none;
}
.results__head { text-align: center; margin-bottom: 48px; }
.results__head .tag { background: rgba(255,255,255,.14); color: #fff; }
.results__head h2 { font-size: 32px; font-weight: 800; color: #fff; margin: 16px 0 8px; }
.results__head p { font-size: 16px; color: rgba(255,255,255,.72); }
.results-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.result-item { text-align: center; padding: 24px 16px; background: rgba(255,255,255,.06); border-radius: 16px; border: 1px solid rgba(255,255,255,.08); backdrop-filter: blur(4px); }
.result-item__num { font-size: 44px; font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; line-height: 1.2; display: block; margin-bottom: 8px; }
.result-item__label { font-size: 14px; color: rgba(255,255,255,.8); }

/* News */
.news-section { background: var(--page-bg); padding: 96px 0; }
.news-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 44px; flex-wrap: wrap; gap: 16px; }
.news-header h2 { font-size: 32px; font-weight: 800; color: var(--ink); margin-bottom: 8px; }
.news-header p { font-size: 15px; color: var(--meta); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
  background: var(--card-bg); border: 1px solid var(--line); border-radius: var(--radius-card);
  overflow: hidden; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  display: flex; flex-direction: column; box-shadow: var(--shadow-card);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.news-card__link { display: flex; flex-direction: column; flex: 1; color: inherit; text-decoration: none; }
.news-card__img { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--primary-light); }
.news-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-card:hover .news-card__img img { transform: scale(1.05); }
.news-card__badge {
  position: absolute; top: 14px; left: 14px; background: var(--primary); color: #fff;
  font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 999px; letter-spacing: .3px;
}
.news-card__body { padding: 20px 20px 16px; display: flex; flex-direction: column; flex: 1; }
.news-card__title { font-size: 17px; font-weight: 700; color: var(--ink); line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__title:hover { color: var(--primary); }
.news-card__summary { font-size: 14px; color: var(--body); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 16px; flex: 1; }
.news-card__meta { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--meta); border-top: 1px solid var(--line); padding-top: 14px; }
.news-card__meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--line); }
.news-empty {
  grid-column: 1 / -1; border: 2px dashed var(--line); border-radius: var(--radius-card);
  padding: 80px 24px; text-align: center; color: var(--meta); background: rgba(255,255,255,.6);
}
.news-empty svg { margin-bottom: 16px; }
.news-empty p { font-size: 16px; color: var(--meta); }

/* Testimonials */
.testimonials { background: var(--primary-light); padding: 96px 0; }
.testimonial-layout { display: grid; grid-template-columns: 7fr 5fr; gap: 28px; margin-top: 40px; }
.testimonial-card {
  background: #fff; border-radius: var(--radius-card); padding: 32px;
  box-shadow: var(--shadow-card); border: 1px solid rgba(227,225,218,.6);
  transition: transform .25s ease, box-shadow .25s ease;
}
.testimonial-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.testimonial-card--lg { padding: 40px; }
.testimonial-card__quote { font-size: 48px; line-height: 1; color: rgba(242,100,48,.3); font-family: Georgia, serif; margin-bottom: 12px; height: 36px; }
.testimonial-card p { font-size: 16px; line-height: 1.7; color: var(--body); margin-bottom: 24px; }
.testimonial-card__user { display: flex; align-items: center; gap: 14px; }
.testimonial-card__avatar { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); overflow: hidden; flex-shrink: 0; }
.testimonial-card__avatar img { width: 100%; height: 100%; object-fit: cover; }
.testimonial-card__info { flex: 1; }
.testimonial-card__info strong { display: block; font-size: 14px; font-weight: 600; color: var(--ink); }
.testimonial-card__info span { font-size: 13px; color: var(--meta); }
.testimonial-card__stars { display: flex; gap: 2px; }
.testimonial-card__stars svg { width: 18px; height: 18px; fill: var(--accent); }
.testimonial-col { display: flex; flex-direction: column; gap: 28px; }

/* FAQ */
.faq-section { background: #fff; padding: 96px 0; }
.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--line); border-radius: 12px; margin-bottom: 16px;
  transition: border-color .25s ease, box-shadow .25s ease; overflow: hidden;
}
.faq-item.is-active { border-color: var(--accent); box-shadow: 0 4px 16px rgba(242,100,48,.08); }
.faq-item__question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--ink);
  cursor: pointer; text-align: left; gap: 16px; background: transparent; border-radius: 12px;
}
.faq-item__question:hover { color: var(--primary); }
.faq-item__icon { width: 24px; height: 24px; flex-shrink: 0; position: relative; border-radius: 50%; background: var(--primary-light); transition: background .25s ease; }
.faq-item__icon::before, .faq-item__icon::after { content: ""; position: absolute; top: 50%; left: 50%; width: 10px; height: 2px; background: var(--primary); border-radius: 2px; transform: translate(-50%, -50%); transition: all .3s ease; }
.faq-item__icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item.is-active .faq-item__icon { background: var(--accent); }
.faq-item.is-active .faq-item__icon::before, .faq-item.is-active .faq-item__icon::after { background: #fff; }
.faq-item.is-active .faq-item__icon::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-item__answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item__answer-inner { padding: 0 24px 20px; font-size: 15px; line-height: 1.7; color: var(--body); border-left: 3px solid var(--accent); margin-left: 24px; padding-left: 16px; }

/* Final CTA */
.cta-final {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff; padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-final::before {
  content: ""; position: absolute; top: -60px; left: 50%; transform: translateX(-50%);
  width: 420px; height: 140px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.07); pointer-events: none;
}
.cta-final h2 { font-size: 32px; font-weight: 800; color: #fff; margin-bottom: 12px; position: relative; }
.cta-final p { font-size: 16px; color: rgba(255,255,255,.75); max-width: 520px; margin: 0 auto 40px; position: relative; }
.cta-final__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; position: relative; }
.cta-final__contact { font-size: 13px; color: rgba(255,255,255,.6); position: relative; }
.cta-final__contact a { color: rgba(255,255,255,.85); text-decoration: underline; text-underline-offset: 3px; }

/* Footer */
.site-footer { background: var(--footer-bg); color: rgba(255,255,255,.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .brand__text { color: #fff; }
.footer-brand .brand__icon { margin-bottom: 16px; }
.footer-desc { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.55); max-width: 280px; margin: 16px 0 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 8px; background: rgba(255,255,255,.06);
  display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.6);
  transition: background .2s ease, color .2s ease;
}
.footer-social a:hover { background: var(--accent); color: #fff; }
.footer-col h3 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,.55); font-size: 14px; transition: color .2s ease; text-decoration: none; }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-qr { width: 80px; height: 80px; border: 1px dashed rgba(255,255,255,.3); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.4); font-size: 12px; margin-top: 12px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: rgba(255,255,255,.55); margin-bottom: 12px; }
.footer-contact svg { flex-shrink: 0; margin-top: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.5); text-decoration: none; }
.footer-bottom a:hover { color: #fff; }
.footer-bottom-links { display: flex; gap: 20px; }

/* Back to top */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 100; width: 48px; height: 48px;
  border-radius: 50%; background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(15,118,110,.3); transition: all .25s ease; cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(12px); border: none;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--accent); box-shadow: 0 8px 24px rgba(242,100,48,.3); transform: translateY(-3px); }
.back-to-top:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* Foundation off-canvas overrides */
.js-off-canvas-overlay { background: rgba(11,79,74,.5); }
.off-canvas.position-right { border-left: none; width: 100%; max-width: 380px; }

/* Animations */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
.fade-in-up { animation: fadeInUp .6s ease both; }
.fade-in-up.delay-1 { animation-delay: .15s; }
.fade-in-up.delay-2 { animation-delay: .3s; }
.fade-in-up.delay-3 { animation-delay: .45s; }

/* Responsive */
@media (max-width: 1024px) {
  .section-pad { padding: 56px 0; }
  .section-pad-sm { padding: 44px 0; }
  .main-nav { gap: 20px; }
  .hero { min-height: 620px; padding: 120px 0 80px; }
  .hero__title { font-size: 38px; }
  .hero__subtitle { font-size: 16px; }
  .results-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .header-cta .header-login-btn { display: none; }
  .hamburger { display: block; }
  .section-pad { padding: 40px 0; }
  .hero { min-height: 520px; padding: 100px 0 64px; }
  .hero__title { font-size: 32px; }
  .hero__subtitle { font-size: 15px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
  .login-card { margin-left: 0; margin-top: 32px; max-width: 100%; }
  .pain-grid { grid-template-columns: 1fr; }
  .login-steps { grid-template-columns: 1fr; gap: 24px; }
  .login-step::after { display: none; }
  .result-item__num { font-size: 34px; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .testimonial-card--lg { padding: 28px; }
  .section-head h2 { font-size: 24px; }
  .news-header h2 { font-size: 24px; }
  .results__head h2 { font-size: 24px; }
  .cta-final h2 { font-size: 24px; }
  .grid-container { padding-left: 16px; padding-right: 16px; }
  .back-to-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
}
@media (max-width: 520px) {
  .hero__badges span { font-size: 12px; padding: 6px 12px; }
  .login-card { padding: 24px 20px; }
  .solution-row__content h3 { font-size: 20px; }
  .results-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; gap: 16px; }
  .result-item { padding: 16px 10px; }
  .result-item__num { font-size: 30px; }
  .testimonial-card { padding: 24px 20px; }
  .btn { padding: 0 20px; }
}

/* Breadcrumb & misc utilities */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

/* roulang page: article */
:root{
  --primary:#0F766E;
  --primary-dark:#0B4F4A;
  --primary-deeper:#072E2C;
  --primary-light:#E6F4F2;
  --accent:#F26430;
  --accent-dark:#E0502B;
  --page-bg:#F6F4EF;
  --card-bg:#FFFFFF;
  --line:#E3E1DA;
  --ink:#1F2A28;
  --body:#4A5553;
  --meta:#8A9492;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:16px;
  --shadow-sm:0 1px 2px rgba(15,118,110,.05);
  --shadow-md:0 12px 28px rgba(15,118,110,.12);
  --section-pad:96px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--page-bg);
  color:var(--body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--accent)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
::selection{background:var(--primary-light);color:var(--primary-dark)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.grid-container{padding:0 16px}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 32px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:all .25s ease;white-space:nowrap;
}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(242,100,48,.28)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}
.btn-outline-dark{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline-dark:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary)}
.btn-sm{height:36px;padding:0 20px;font-size:14px;border-radius:8px}

/* Header 导航 */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--card-bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.scrolled{box-shadow:0 4px 24px rgba(15,118,110,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand__icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--primary-light);border-radius:10px;transition:background .25s}
.brand:hover .brand__icon{background:#d0ece8}
.brand__text{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:.5px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  display:inline-block;padding:8px 16px;border-radius:20px;
  font-size:15px;font-weight:500;color:var(--body);
  transition:all .25s ease;position:relative;
}
.main-nav a:hover{color:var(--primary);background:var(--primary-light)}
.main-nav a.active{color:var(--primary);background:var(--primary-light);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:3px;
  background:var(--primary);border-radius:3px;
}
.header-actions{display:flex;align-items:center;gap:12px}
.header-cta{flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:10px;background:transparent;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  z-index:120;position:relative;transition:border-color .25s;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all .3s ease}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){transform:translateY(1px) rotate(-45deg)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(7,46,44,.5);
  z-index:90;opacity:0;visibility:hidden;transition:all .3s;
}
.nav-open .nav-overlay{opacity:1;visibility:visible}

/* 面包屑 */
.article-head-section{
  background:var(--primary-light);
  padding:52px 0 48px;position:relative;overflow:hidden;
}
.article-head-section::before{
  content:"";position:absolute;right:-90px;top:-90px;width:240px;height:240px;
  border-radius:50%;background:rgba(255,255,255,.55);
}
.article-head-section::after{
  content:"";position:absolute;left:-60px;bottom:-100px;width:220px;height:220px;
  border-radius:50%;background:rgba(15,118,110,.06);
}
.breadcrumb{
  font-size:14px;color:var(--meta);margin-bottom:28px;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;position:relative;z-index:1;
}
.breadcrumb a{color:var(--primary)}
.breadcrumb a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C2C9C7}
.article-category-badge{
  display:inline-block;background:var(--primary);color:#fff;
  font-size:13px;font-weight:600;padding:5px 16px;border-radius:100px;
  margin-bottom:16px;letter-spacing:.3px;
}
.article-title{
  font-size:36px;font-weight:800;line-height:1.35;color:var(--ink);
  max-width:820px;margin-bottom:16px;position:relative;z-index:1;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--meta);position:relative;z-index:1;
}
.article-meta .dot{color:#C2C9C7}

/* 正文区域 */
.article-main{padding:56px 0 48px}
.article-layout{max-width:860px;margin:0 auto}
.article-body{
  background:var(--card-bg);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:56px 56px 64px;
  box-shadow:var(--shadow-sm);
}
.article-body h2,.article-body h3,.article-body h4{
  color:var(--ink);font-weight:700;line-height:1.4;margin:40px 0 16px;
}
.article-body h2{font-size:28px;padding-top:8px;border-top:1px solid var(--line)}
.article-body h2:first-child{border-top:0;margin-top:0}
.article-body h3{font-size:21px;margin-top:32px}
.article-body h4{font-size:18px;margin-top:24px}
.article-body p{font-size:17px;line-height:1.85;color:var(--body);margin-bottom:24px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body ul,.article-body ol{margin:0 0 24px 24px;padding-left:20px}
.article-body li{margin-bottom:10px;line-height:1.8;font-size:16px}
.article-body ul li::marker{color:var(--primary)}
.article-body blockquote{
  border-left:4px solid var(--primary);background:var(--primary-light);
  padding:20px 24px;border-radius:0 12px 12px 0;margin:28px 0;
  color:var(--primary-dark);font-size:16px;line-height:1.8;
}
.article-body blockquote p{margin-bottom:0;color:var(--primary-dark)}
.article-body img{
  width:100%;height:auto;border-radius:12px;margin:28px 0 8px;
  box-shadow:var(--shadow-sm);
}
.article-body figcaption,.article-body .wp-caption-text{
  font-size:13px;color:var(--meta);text-align:center;margin-bottom:28px;
  padding:0 12px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:28px 0;
  font-size:15px;border-radius:8px;overflow:hidden;
}
.article-body th{
  background:var(--primary-light);color:var(--primary-dark);
  font-weight:600;text-align:left;padding:14px 16px;border:1px solid var(--line);
}
.article-body td{padding:12px 16px;border:1px solid var(--line);color:var(--body)}
.article-body tr:nth-child(even) td{background:#FAFAF7}
.article-body pre{
  background:var(--ink);color:#E8ECEB;padding:22px 26px;
  border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;
  font-family:var(--mono);margin:28px 0;
}
.article-body :not(pre)>code{
  background:var(--primary-light);color:var(--primary-dark);
  padding:2px 8px;border-radius:5px;font-size:.9em;font-family:var(--mono);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}

/* 空态 */
.article-empty{
  background:var(--card-bg);border:1px dashed var(--line);
  border-radius:var(--radius-lg);padding:80px 40px;text-align:center;
}
.article-empty p{font-size:18px;color:var(--ink);margin-bottom:20px}
.article-empty .btn{display:inline-flex}

/* 文末标签分享 */
.article-extras{max-width:860px;margin:0 auto;padding:24px 0 0}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.article-tag{
  display:inline-block;background:var(--primary-light);color:var(--primary);
  font-size:13px;padding:6px 16px;border-radius:100px;transition:all .25s;
}
.article-tag:hover{background:var(--primary);color:#fff}
.article-share{
  display:flex;align-items:center;gap:12px;font-size:14px;color:var(--meta);
  border-top:1px solid var(--line);padding-top:24px;margin-bottom:32px;
}
.article-share a{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border:1px solid var(--line);border-radius:50%;
  color:var(--body);transition:all .25s;
}
.article-share a:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);transform:translateY(-2px)}

/* 上一篇下一篇 */
.article-prev-next{
  display:flex;justify-content:space-between;gap:20px;
  border-top:1px solid var(--line);padding:24px 0;
  font-size:15px;
}
.article-prev-next a{color:var(--primary);display:inline-flex;align-items:center;gap:6px;transition:all .25s}
.article-prev-next a:hover{color:var(--accent);transform:translateX(-2px)}
.article-prev-next a.next:hover{transform:translateX(2px)}
.article-prev-next .disabled{color:#BCC4C2;cursor:not-allowed}

/* 相关推荐 */
.related-section{padding:72px 0;background:var(--page-bg)}
.related-section .section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px}
.related-section .section-head h2{font-size:28px;font-weight:800;color:var(--ink)}
.related-section .section-head .btn{display:inline-flex}
.news-card{
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all .25s ease;
  height:100%;display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-md)}
.news-card__cover{position:relative;display:block;overflow:hidden;aspect-ratio:16/9;background:var(--primary-light)}
.news-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-card__cover img{transform:scale(1.05)}
.news-card__badge{
  position:absolute;top:14px;left:14px;background:var(--primary);color:#fff;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:100px;z-index:2;
}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-card__title{font-size:18px;font-weight:700;color:var(--ink);line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__title a{color:var(--ink)}
.news-card__title a:hover{color:var(--primary)}
.news-card__excerpt{font-size:14px;color:var(--body);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;flex:1}
.news-card__meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--meta);border-top:1px solid var(--line);padding-top:14px}

/* CTA 区 */
.cta-band{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  padding:80px 0;text-align:center;color:#fff;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:28px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 30' preserveAspectRatio='none'%3E%3Cpath d='M0 30C150 12 350 4 600 10s450 16 600 2v18H0Z' fill='%23F6F4EF'/%3E%3C/svg%3E") top center/cover no-repeat;
}
.cta-band h2{font-size:32px;font-weight:800;margin-bottom:14px;color:#fff}
.cta-band p{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:32px;max-width:520px;margin-left:auto;margin-right:auto}
.cta-band .btn-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.cta-band .btn-white{background:#fff;color:var(--primary);border-color:#fff}
.cta-band .btn-white:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px)}

/* 页脚 */
.site-footer{background:#12201F;color:rgba(255,255,255,.72);padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:48px;margin-bottom:48px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand__icon{background:rgba(255,255,255,.12)}
.footer-brand .brand__text{color:#fff}
.footer-desc{font-size:14px;line-height:1.7;color:rgba(255,255,255,.6);margin:16px 0 20px;max-width:260px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.8);transition:all .25s;
}
.footer-social a:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.footer-col h3{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:20px;position:relative;
  padding-bottom:10px;
}
.footer-col h3::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent);border-radius:2px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:12px}
.footer-col a{color:rgba(255,255,255,.65);transition:all .25s}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-col li span{color:rgba(255,255,255,.5);display:block;line-height:1.7}
.footer-qr{
  width:88px;height:88px;border:1px dashed rgba(255,255,255,.25);
  border-radius:10px;display:flex;align-items:center;justify-content:center;
  margin-top:16px;font-size:12px;color:rgba(255,255,255,.4);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:24px;
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:10px;font-size:13px;color:rgba(255,255,255,.4);
}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:#fff}

/* 返回顶部 */
.back-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;
  border-radius:50%;background:var(--primary);color:#fff;border:0;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--shadow-md);z-index:80;transition:all .3s ease;
  opacity:0;visibility:hidden;
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--accent);transform:translateY(-3px)}

/* 移动端适配 */
@media(min-width:769px){
  .main-nav{display:flex!important}
}
@media(max-width:1024px){
  :root{--section-pad:72px}
  .main-nav a{padding:8px 12px;font-size:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media(max-width:768px){
  :root{--section-pad:56px}
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .main-nav{
    position:fixed;top:0;right:-100%;width:76%;max-width:340px;height:100vh;
    background:var(--card-bg);flex-direction:column;justify-content:flex-start;
    padding:100px 32px 32px;gap:6px;z-index:100;
    transition:right .35s ease;box-shadow:-12px 0 32px rgba(0,0,0,.12);
  }
  .nav-open .main-nav{right:0}
  .main-nav a{font-size:18px;padding:12px 16px;width:100%;border-radius:10px}
  .main-nav a.active::after{display:none}
  .article-head-section{padding:40px 0 36px}
  .article-title{font-size:28px}
  .article-body{padding:28px 20px 36px;border-radius:12px}
  .article-main{padding:32px 0 40px}
  .related-section{padding:48px 0}
  .cta-band{padding:56px 0}
  .cta-band h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:32px;margin-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .back-top{right:16px;bottom:16px}
}
@media(max-width:520px){
  .article-meta{flex-direction:column;align-items:flex-start;gap:6px}
  .article-meta .dot{display:none}
  .article-prev-next{flex-direction:column;gap:12px}
  .cta-band .btn-group{flex-direction:column;align-items:stretch;padding:0 16px}
  .cta-band .btn{justify-content:center}
}

/* roulang page: category1 */
:root {
      --primary: #0F766E;
      --primary-dark: #0B4F4A;
      --primary-light: #E6F4F2;
      --accent: #F26430;
      --accent-dark: #E0502B;
      --page-bg: #F6F4EF;
      --white: #FFFFFF;
      --line: #E3E1DA;
      --ink: #1F2A28;
      --body: #4A5553;
      --meta: #8A9492;
      --radius: 14px;
      --shadow: 0 1px 2px rgba(15, 118, 110, .05);
      --shadow-hover: 0 12px 28px rgba(15, 118, 110, .12);
      --section-pad: 96px;
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-main);
      background: var(--page-bg);
      color: var(--body);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color .25s ease;
    }

    a:hover {
      color: #0B5E59;
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    button,
    input {
      font-family: inherit;
    }

    .container,
    .grid-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 52px;
    }

    .section-head .eyebrow {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 14px;
      letter-spacing: .5px;
    }

    .section-head h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--ink);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-head p {
      font-size: 16px;
      color: var(--body);
      max-width: 560px;
      margin: 0 auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 48px;
      padding: 0 32px;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      text-decoration: none;
      cursor: pointer;
      border: 1.5px solid transparent;
      transition: all .25s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--accent);
      color: #fff;
    }

    .btn-primary:hover {
      background: var(--accent-dark);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(242, 100, 48, .28);
      text-decoration: none;
    }

    .btn-outline-light {
      background: transparent;
      color: #fff;
      border-color: rgba(255, 255, 255, .72);
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, .12);
      color: #fff;
      text-decoration: none;
    }

    .btn-white {
      background: #fff;
      color: var(--primary);
    }

    .btn-white:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
      text-decoration: none;
    }

    .btn-sm {
      height: 38px;
      padding: 0 20px;
      font-size: 14px;
      border-radius: 8px;
    }

    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 300;
      background: rgba(255, 255, 255, .96);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      flex-shrink: 0;
    }

    .brand:hover {
      text-decoration: none;
    }

    .brand__icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(11, 79, 74, .22);
    }

    .brand__text {
      font-size: 20px;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: .5px;
    }

    .main-nav {
      display: flex;
      gap: 30px;
    }

    .main-nav a {
      font-size: 15px;
      font-weight: 500;
      color: var(--body);
      text-decoration: none;
      padding: 8px 2px;
      position: relative;
      transition: color .2s ease;
    }

    .main-nav a:hover {
      color: var(--primary);
      text-decoration: none;
    }

    .main-nav a.active {
      color: var(--primary);
      font-weight: 600;
    }

    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .header-cta {
      flex-shrink: 0;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 6px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .hamburger span {
      width: 24px;
      height: 2px;
      background: var(--ink);
      border-radius: 2px;
      transition: all .3s ease;
    }

    .hamburger.open span:nth-child(1) {
      transform: translateY(4px) rotate(45deg);
    }

    .hamburger.open span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.open span:nth-child(3) {
      transform: translateY(-4px) rotate(-45deg);
    }

    .mobile-nav {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(11, 79, 74, .97);
      z-index: 250;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 12px;
      padding: 48px 24px;
    }

    .mobile-nav.open {
      display: flex;
    }

    .mobile-nav nav {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      margin-bottom: 32px;
    }

    .mobile-nav nav a {
      color: #fff;
      font-size: 24px;
      font-weight: 600;
      padding: 10px 24px;
      text-decoration: none;
      opacity: .86;
      transition: opacity .2s;
    }

    .mobile-nav nav a:hover,
    .mobile-nav nav a.active {
      opacity: 1;
      color: #fff;
      text-decoration: underline;
      text-underline-offset: 6px;
    }

    .mobile-nav .btn {
      min-width: 180px;
    }

    /* Page Hero */
    .page-hero {
      position: relative;
      min-height: 400px;
      display: flex;
      align-items: center;
      background: linear-gradient(135deg, rgba(11, 79, 74, .92), rgba(15, 118, 110, .78)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
      color: #fff;
      padding: 70px 0;
    }

    .page-hero__inner {
      max-width: 820px;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: rgba(255, 255, 255, .72);
      margin-bottom: 24px;
    }

    .breadcrumb a {
      color: rgba(255, 255, 255, .86);
      text-decoration: none;
    }

    .breadcrumb a:hover {
      color: #fff;
      text-decoration: underline;
    }

    .breadcrumb__sep {
      opacity: .6;
    }

    .page-hero__title {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.2;
      color: #fff;
      margin: 0 0 16px;
      letter-spacing: 1px;
    }

    .page-hero__desc {
      font-size: 18px;
      line-height: 1.75;
      color: rgba(255, 255, 255, .78);
      max-width: 640px;
      margin-bottom: 28px;
    }

    .page-hero__cta {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .12);
      color: #fff;
      font-size: 14px;
      border: 1px solid rgba(255, 255, 255, .14);
    }

    /* Steps Section */
    .steps-section {
      background: var(--white);
      padding: var(--section-pad) 0;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .timeline-step {
      position: relative;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 40px 32px;
      box-shadow: var(--shadow);
      transition: all .25s ease;
    }

    .timeline-step:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }

    .timeline-step:not(:last-child)::after {
      content: '';
      position: absolute;
      top: 65px;
      right: -24px;
      width: 24px;
      height: 2px;
      border-top: 2px dashed var(--primary);
      opacity: .35;
    }

    .timeline-step__num {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: var(--accent);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 20px;
      box-shadow: 0 8px 16px rgba(242, 100, 48, .25);
    }

    .timeline-step h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--ink);
      margin: 0 0 12px;
    }

    .timeline-step p {
      font-size: 15px;
      line-height: 1.75;
      color: var(--body);
      margin: 0;
    }

    /* Prep Section */
    .prep-section {
      background: var(--primary-light);
      padding: var(--section-pad) 0;
    }

    .prep-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 52px;
      align-items: center;
    }

    .prep-image {
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 16px 36px rgba(11, 79, 74, .16);
    }

    .prep-image img {
      width: 100%;
      height: 340px;
      object-fit: cover;
    }

    .prep-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .prep-list li {
      display: flex;
      gap: 16px;
      align-items: flex-start;
      background: #fff;
      border: 1px solid rgba(255, 255, 255, .8);
      border-radius: 12px;
      padding: 20px;
      margin-bottom: 16px;
      box-shadow: 0 2px 8px rgba(11, 79, 74, .05);
      transition: all .25s ease;
    }

    .prep-list li:hover {
      border-color: var(--primary);
      box-shadow: 0 8px 20px rgba(15, 118, 110, .1);
    }

    .prep-list .icon {
      flex: 0 0 40px;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .prep-list h3 {
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
      margin: 0 0 6px;
    }

    .prep-list p {
      font-size: 14px;
      line-height: 1.65;
      color: var(--body);
      margin: 0;
    }

    /* FAQ Section */
    .faq-section {
      background: var(--white);
      padding: var(--section-pad) 0;
    }

    .faq-wrap {
      max-width: 840px;
      margin: 0 auto;
    }

    .accordion {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .accordion-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 14px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: all .25s ease;
    }

    .accordion-item:hover {
      border-color: rgba(15, 118, 110, .4);
    }

    .accordion-item.is-active {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }

    .accordion-title {
      display: block;
      padding: 22px 56px 22px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
      position: relative;
      cursor: pointer;
      text-decoration: none;
      transition: color .2s;
    }

    .accordion-title:hover {
      color: var(--primary);
    }

    .accordion-title::before {
      content: '';
      position: absolute;
      left: 24px;
      top: 0;
      width: 3px;
      height: 100%;
      border-radius: 0 3px 3px 0;
      background: transparent;
      transition: background .3s;
    }

    .accordion-item.is-active .accordion-title::before {
      background: var(--accent);
    }

    .accordion-title::after {
      content: '';
      position: absolute;
      right: 26px;
      top: 50%;
      width: 10px;
      height: 10px;
      border-right: 2px solid var(--meta);
      border-bottom: 2px solid var(--meta);
      transform: translateY(-70%) rotate(45deg);
      transition: all .3s ease;
    }

    .accordion-item.is-active .accordion-title::after {
      transform: translateY(-30%) rotate(-135deg);
      border-color: var(--accent);
    }

    .accordion-content {
      padding: 0 24px 24px 56px;
      color: var(--body);
      font-size: 15px;
      line-height: 1.8;
      border-top: 1px solid transparent;
    }

    .accordion-item.is-active .accordion-content {
      border-color: var(--primary-light);
      padding-top: 16px;
    }

    /* Category Index Section */
    .category-index-section {
      background: var(--page-bg);
      padding: var(--section-pad) 0;
    }

    .category-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .category-card {
      display: block;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 32px;
      text-decoration: none;
      box-shadow: var(--shadow);
      transition: all .25s ease;
      position: relative;
    }

    .category-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
      text-decoration: none;
    }

    .category-card.is-current {
      opacity: .78;
      cursor: default;
      background: var(--primary-light);
      border-style: dashed;
      border-color: var(--primary);
      box-shadow: none;
    }

    .category-card.is-current:hover {
      transform: none;
      box-shadow: none;
    }

    .category-card__tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--white);
      background: var(--primary);
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 18px;
    }

    .category-card.is-current .category-card__tag {
      background: var(--meta);
    }

    .category-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--ink);
      margin: 0 0 12px;
    }

    .category-card p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--body);
      margin: 0 0 18px;
    }

    .category-card__link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
    }

    .category-card.is-current .category-card__link {
      color: var(--meta);
    }

    /* CTA Section */
    .cta-section {
      position: relative;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      padding: 84px 0;
      text-align: center;
      color: #fff;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 40px;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 40' preserveAspectRatio='none'%3E%3Cpath d='M0 40L60 10C120 0 240 0 300 10C360 20 480 35 540 32C600 29 720 12 780 8C840 5 960 10 1020 18C1080 26 1140 32 1200 30V40H0Z' fill='%23F6F4EF' opacity='0.06'/%3E%3C/svg%3E") center / cover no-repeat;
    }

    .cta-section h2 {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      margin: 0 0 16px;
    }

    .cta-section p {
      font-size: 16px;
      color: rgba(255, 255, 255, .82);
      max-width: 560px;
      margin: 0 auto 32px;
    }

    .cta-buttons {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* Footer */
    .site-footer {
      background: #12201F;
      color: rgba(255, 255, 255, .82);
      padding: 64px 0 0;
      position: relative;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      padding-bottom: 48px;
    }

    .footer-brand .brand__icon {
      background: rgba(255, 255, 255, .12);
    }

    .footer-brand .brand__text {
      color: #fff;
      font-size: 20px;
      font-weight: 700;
    }

    .footer-desc {
      font-size: 14px;
      line-height: 1.7;
      color: rgba(255, 255, 255, .6);
      margin: 18px 0 22px;
      max-width: 260px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .08);
      color: rgba(255, 255, 255, .7);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all .25s ease;
    }

    .footer-social a:hover {
      background: var(--accent);
      color: #fff;
      text-decoration: none;
    }

    .footer-col h3 {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 18px;
    }

    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul a {
      font-size: 14px;
      color: rgba(255, 255, 255, .65);
      transition: color .2s;
    }

    .footer-col ul a:hover {
      color: #fff;
      text-decoration: none;
    }

    .footer-col ul li span {
      font-size: 14px;
      color: rgba(255, 255, 255, .65);
      display: inline-block;
    }

    .footer-qr {
      width: 88px;
      height: 88px;
      border: 1px dashed rgba(255, 255, 255, .3);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      color: rgba(255, 255, 255, .45);
      margin-top: 14px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .1);
      padding: 22px 0;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      color: rgba(255, 255, 255, .5);
    }

    .footer-bottom p {
      margin: 0;
    }

    .back-to-top {
      position: fixed;
      right: 24px;
      bottom: 24px;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      text-decoration: none;
      box-shadow: 0 8px 20px rgba(11, 79, 74, .3);
      z-index: 99;
      transition: all .25s ease;
    }

    .back-to-top:hover {
      background: var(--accent);
      color: #fff;
      transform: translateY(-2px);
      text-decoration: none;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      :root {
        --section-pad: 56px;
      }

      .steps-grid {
        gap: 20px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }
    }

    @media (max-width: 768px) {
      .main-nav,
      .header-cta {
        display: none;
      }

      .hamburger {
        display: flex;
      }

      .page-hero {
        min-height: auto;
        padding: 52px 0;
      }

      .page-hero__title {
        font-size: 36px;
      }

      .page-hero__desc {
        font-size: 16px;
      }

      .steps-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .timeline-step:not(:last-child)::after {
        display: none;
      }

      .prep-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .category-cards {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 640px) {
      .container,
      .grid-container {
        padding: 0 16px;
      }

      :root {
        --section-pad: 40px;
      }

      .page-hero__title {
        font-size: 30px;
      }

      .page-hero__desc {
        font-size: 15px;
      }

      .page-hero__cta {
        flex-direction: column;
        align-items: flex-start;
      }

      .btn {
        width: 100%;
      }

      .hero-badge {
        font-size: 13px;
        padding: 5px 12px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }

      .back-to-top {
        right: 16px;
        bottom: 16px;
      }

      .section-head h2 {
        font-size: 26px;
      }

      .cta-section h2 {
        font-size: 26px;
      }
    }

/* roulang page: category2 */
:root {
      --primary: #0F766E;
      --primary-dark: #0B4F4A;
      --primary-light: #E6F4F2;
      --accent: #F26430;
      --accent-dark: #E0502B;
      --page-bg: #F6F4EF;
      --white: #FFFFFF;
      --line: #E3E1DA;
      --ink: #1F2A28;
      --body: #4A5553;
      --meta: #8A9492;
      --radius: 14px;
      --radius-lg: 16px;
      --radius-sm: 10px;
      --shadow-sm: 0 1px 2px rgba(15,118,110,0.05);
      --shadow-md: 0 12px 28px rgba(15,118,110,0.12);
      --section-y: 96px;
      --section-pad: 96px 0;
      --transition: 0.25s ease;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
      background: var(--page-bg);
      color: var(--body);
      line-height: 1.7;
      margin: 0;
      font-size: 16px;
      font-variant-numeric: tabular-nums;
    }

    img { max-width: 100%; display: block; }
    a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
    a:hover { color: #0B5E59; text-decoration: underline; text-underline-offset: 4px; }
    button { font-family: inherit; cursor: pointer; }
    h1, h2, h3 { color: var(--ink); line-height: 1.3; margin: 0 0 16px; font-weight: 700; }
    p { margin: 0 0 20px; }
    ul { padding: 0; margin: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

    .grid-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ===== 按钮 ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 48px;
      padding: 0 32px;
      border-radius: var(--radius-sm);
      font-size: 16px;
      font-weight: 600;
      line-height: 1;
      border: 1.5px solid transparent;
      transition: all var(--transition);
      text-decoration: none !important;
      white-space: nowrap;
    }
    .btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
    .btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(242, 100, 48, 0.28); }
    .btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
    .btn-outline:hover { background: rgba(15, 118, 110, 0.08); color: var(--primary-dark); }
    .btn-sm { height: 36px; padding: 0 20px; font-size: 14px; }
    .btn-white { background: #fff; color: var(--primary); border-color: #fff; }
    .btn-white:hover { background: var(--primary-light); color: var(--primary-dark); border-color: var(--primary-light); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15); }
    .btn-white-outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.75); }
    .btn-white-outline:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; color: #fff; }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--white);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 1px 4px rgba(15, 118, 110, 0.04);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }
    .brand { display: flex; align-items: center; gap: 10px; text-decoration: none !important; flex-shrink: 0; }
    .brand__icon { display: flex; align-items: center; justify-content: center; }
    .brand__text { font-size: 20px; font-weight: 800; color: var(--ink); letter-spacing: 0.5px; }
    .main-nav { display: flex; align-items: center; gap: 28px; }
    .main-nav a {
      font-size: 15px;
      font-weight: 500;
      color: var(--ink);
      position: relative;
      padding: 8px 2px;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    .main-nav a:hover { color: var(--primary); }
    .main-nav a.active { color: var(--primary); font-weight: 600; }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      bottom: -2px;
      width: 20px;
      height: 3px;
      border-radius: 2px;
      background: var(--primary);
    }
    .header-actions { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      background: var(--primary-light);
      border: none;
      border-radius: 10px;
      position: relative;
    }
    .nav-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      background: var(--ink);
      border-radius: 2px;
      position: absolute;
      left: 50%;
      margin-left: -9px;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }
    .nav-toggle span:nth-child(1) { top: 16px; }
    .nav-toggle span:nth-child(2) { bottom: 16px; }
    .nav-toggle.is-active span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
    .nav-toggle.is-active span:nth-child(2) { transform: translateY(-5px) rotate(-45deg); }

    /* ===== 小尺寸 Hero ===== */
    .page-hero {
      background: linear-gradient(135deg, rgba(11, 79, 74, 0.9), rgba(11, 79, 74, 0.72)), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
      color: #fff;
      padding: 72px 0 64px;
      position: relative;
    }
    .page-hero::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 40px;
      background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.12), transparent);
      clip-path: polygon(0 0, 16% 30%, 32% 12%, 48% 36%, 64% 10%, 80% 28%, 100% 0, 100% 100%, 0 100%);
    }
    .page-hero .breadcrumb {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 24px;
    }
    .page-hero .breadcrumb a { color: rgba(255, 255, 255, 0.85); text-decoration: none; }
    .page-hero .breadcrumb a:hover { color: #fff; text-decoration: underline; }
    .page-hero .breadcrumb .sep { margin: 0 8px; color: rgba(255, 255, 255, 0.5); }
    .page-hero h1 { color: #fff; font-size: 36px; font-weight: 800; margin-bottom: 12px; }
    .page-hero .hero-desc { color: rgba(255, 255, 255, 0.85); font-size: 16px; max-width: 680px; margin-bottom: 0; }

    /* ===== 区块通用 ===== */
    .section { padding: var(--section-pad); }
    .section-head {
      text-align: center;
      max-width: 700px;
      margin: 0 auto 48px;
    }
    .section-head .eyebrow {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 16px;
    }
    .section-head h2 { font-size: 32px; font-weight: 800; }
    .section-head p { color: var(--body); font-size: 16px; margin-bottom: 0; }

    .eyebrow {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 16px;
    }

    /* ===== 图文交替 ===== */
    .feature-alt { background: var(--page-bg); }
    .feature-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
      margin-bottom: 88px;
    }
    .feature-row:last-child { margin-bottom: 0; }
    .feature-row--reverse .feature-media { order: 2; }
    .feature-media { position: relative; }
    .feature-media img {
      width: 100%;
      border-radius: var(--radius-lg);
      aspect-ratio: 16 / 11;
      object-fit: cover;
      position: relative;
      z-index: 2;
      box-shadow: var(--shadow-md);
    }
    .feature-media::before {
      content: '';
      position: absolute;
      width: 70%;
      height: 70%;
      background: var(--primary-light);
      border-radius: var(--radius-lg);
      top: -18px;
      left: -18px;
      z-index: 1;
      transition: transform 0.3s ease;
    }
    .feature-row--reverse .feature-media::before { left: auto; right: -18px; }
    .feature-media:hover::before { transform: translate(4px, -4px); }
    .feature-content h3 { font-size: 26px; font-weight: 700; margin-bottom: 12px; color: var(--ink); }
    .feature-content p { color: var(--body); margin-bottom: 20px; max-width: 480px; line-height: 1.75; }
    .check-list li {
      position: relative;
      padding-left: 30px;
      margin-bottom: 10px;
      font-size: 15px;
      color: var(--ink);
      line-height: 1.6;
    }
    .check-list li::before {
      content: '✓';
      position: absolute;
      left: 0;
      top: 1px;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 12px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* ===== 表格区 ===== */
    .feature-table-section {
      background: var(--white);
      padding: var(--section-pad);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }
    .feature-table-wrap {
      max-width: 920px;
      margin: 0 auto;
      overflow-x: auto;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      background: var(--white);
    }
    .feature-table-wrap table { width: 100%; }
    .feature-table-wrap th,
    .feature-table-wrap td {
      padding: 18px 24px;
      text-align: left;
      border-bottom: 1px solid var(--line);
      font-size: 14px;
    }
    .feature-table-wrap th {
      background: var(--primary-light);
      color: var(--ink);
      font-weight: 600;
      font-size: 15px;
      white-space: nowrap;
    }
    .feature-table-wrap tr:last-child td { border-bottom: none; }
    .feature-table-wrap tr:nth-child(even) td { background: var(--page-bg); }
    .feature-table-wrap td { color: var(--body); line-height: 1.6; }
    .feature-table-wrap td:first-child { font-weight: 600; color: var(--ink); }

    /* ===== FAQ ===== */
    .category-faq { background: var(--page-bg); }
    .faq-list { max-width: 840px; margin: 0 auto; }
    .faq-item {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--white);
      margin-bottom: 16px;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }
    .faq-item:hover { border-color: var(--primary); }
    .faq-item.is-open {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
      border-left: 3px solid var(--accent);
    }
    .faq-question {
      width: 100%;
      text-align: left;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
      background: none;
      border: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      line-height: 1.5;
    }
    .faq-question .faq-icon {
      width: 26px;
      height: 26px;
      flex-shrink: 0;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 400;
      transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
    }
    .faq-item.is-open .faq-icon {
      transform: rotate(45deg);
      background: var(--accent);
      color: #fff;
    }
    .faq-answer {
      display: none;
      padding: 0 24px 24px;
      color: var(--body);
      font-size: 15px;
      line-height: 1.75;
    }
    .faq-item.is-open .faq-answer { display: block; }

    /* ===== 分类索引 ===== */
    .category-index { background: var(--primary-light); }
    .index-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      max-width: 1000px;
      margin: 0 auto;
    }
    .index-card {
      background: var(--white);
      border-radius: var(--radius);
      border: 1px solid var(--line);
      padding: 32px 24px;
      text-align: center;
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      display: block;
      text-decoration: none !important;
    }
    .index-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .index-card__icon {
      width: 50px;
      height: 50px;
      margin: 0 auto 16px;
      background: var(--primary-light);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
    }
    .index-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: var(--ink); }
    .index-card p { font-size: 14px; color: var(--meta); margin-bottom: 0; line-height: 1.6; }
    .index-card--current {
      opacity: 0.65;
      pointer-events: none;
      border-style: dashed;
      background: rgba(255, 255, 255, 0.6);
    }

    /* ===== CTA ===== */
    .cta-section {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      padding: 88px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 42px;
      background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
      clip-path: polygon(0 0, 12% 100%, 28% 20%, 45% 100%, 62% 25%, 80% 100%, 100% 0);
    }
    .cta-section h2 { color: #fff; font-size: 32px; font-weight: 800; margin-bottom: 12px; }
    .cta-section p { color: rgba(255, 255, 255, 0.82); font-size: 16px; margin-bottom: 32px; }
    .cta-section .btn-wrap { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
    .cta-note {
      margin-top: 24px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.6);
    }

    /* ===== Footer ===== */
    .site-footer { background: #12201F; color: rgba(255, 255, 255, 0.7); font-size: 14px; position: relative; }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 48px;
      padding: 72px 0 48px;
    }
    .site-footer .brand { margin-bottom: 16px; }
    .site-footer .brand__text { color: #fff; }
    .footer-desc { font-size: 14px; color: rgba(255, 255, 255, 0.55); margin-bottom: 24px; max-width: 260px; line-height: 1.7; }
    .footer-social { display: flex; gap: 10px; }
    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.7);
      transition: all 0.2s ease;
      text-decoration: none;
    }
    .footer-social a:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateY(-2px); }
    .footer-col h3 {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 18px;
    }
    .footer-col ul li { margin-bottom: 10px; }
    .footer-col ul a {
      color: rgba(255, 255, 255, 0.6);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    .footer-col ul a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
    .footer-col ul span { color: rgba(255, 255, 255, 0.6); display: block; }
    .footer-qr {
      margin-top: 20px;
      width: 88px;
      height: 88px;
      border: 1px dashed rgba(255, 255, 255, 0.25);
      border-radius: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 4px;
      color: rgba(255, 255, 255, 0.45);
      font-size: 12px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 24px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
    }
    .footer-bottom a { color: rgba(255, 255, 255, 0.45); }
    .footer-bottom a:hover { color: #fff; }
    .back-top {
      position: fixed;
      right: 28px;
      bottom: 28px;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 6px 18px rgba(15, 118, 110, 0.3);
      transition: all 0.25s ease;
      z-index: 90;
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
    }
    .back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
    .back-top:hover { background: var(--accent); transform: translateY(-2px); }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      :root { --section-y: 72px; --section-pad: 72px 0; }
      .feature-row { gap: 40px; margin-bottom: 64px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    }

    @media (max-width: 768px) {
      .grid-container { padding-left: 20px; padding-right: 20px; }
      .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        max-width: 85vw;
        background: var(--primary-dark);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 32px;
        gap: 12px;
        transform: translateX(100%);
        transition: transform 0.35s ease;
        z-index: 999;
        box-shadow: -12px 0 30px rgba(0, 0, 0, 0.2);
      }
      .main-nav.is-open { transform: translateX(0); }
      .main-nav a { color: rgba(255, 255, 255, 0.85); font-size: 20px; padding: 10px 0; display: block; width: 100%; }
      .main-nav a:hover { color: #fff; }
      .main-nav a.active { color: #fff; }
      .main-nav a.active::after { background: var(--accent); bottom: 2px; }
      .nav-toggle { display: block; z-index: 1000; }
      .header-actions .btn { display: none; }
      .header-inner { height: 64px; }
      .page-hero { padding: 56px 0 48px; }
      .page-hero h1 { font-size: 30px; }
      .feature-row { grid-template-columns: 1fr; gap: 40px; }
      .feature-row--reverse .feature-media { order: 0; }
      .feature-media::before { width: 60%; height: 60%; }
      .section-head h2 { font-size: 28px; }
      .index-cards { grid-template-columns: 1fr; max-width: 420px; gap: 20px; }
      .faq-question { font-size: 15px; padding: 18px 20px; }
      .faq-answer { padding: 0 20px 20px; }
      .cta-section { padding: 64px 0; }
      .cta-section h2 { font-size: 26px; }
      .footer-grid { grid-template-columns: 1fr; gap: 36px; padding: 56px 0 32px; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .back-top { right: 16px; bottom: 16px; width: 40px; height: 40px; }
    }

    @media (max-width: 640px) {
      :root { --section-y: 56px; --section-pad: 56px 0; }
      .grid-container { padding-left: 16px; padding-right: 16px; }
      .page-hero h1 { font-size: 26px; }
      .hero-desc { font-size: 15px; }
      .feature-content h3 { font-size: 22px; }
      .feature-table-wrap th,
      .feature-table-wrap td { padding: 14px 16px; font-size: 13px; }
      .section-head { margin-bottom: 32px; }
    }

/* roulang page: category3 */
:root {
            --primary: #0F766E;
            --primary-dark: #0B4F4A;
            --primary-light: #E6F4F2;
            --accent: #F26430;
            --accent-dark: #E0502B;
            --page-bg: #F6F4EF;
            --card-bg: #FFFFFF;
            --line: #E3E1DA;
            --ink: #1F2A28;
            --body: #4A5553;
            --meta: #8A9492;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-sm: 0 1px 2px rgba(15, 118, 110, .08);
            --shadow-lg: 0 12px 28px rgba(15, 118, 110, .12);
            --section-pad: 96px;
            --container: 1200px;
            --transition: .25s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--body);
            background: var(--page-bg);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: #0B5E59;
        }

        ul {
            list-style: none;
        }

        input,
        button {
            font: inherit;
        }

        .grid-container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media(max-width:640px) {
            .grid-container {
                padding: 0 16px;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            border: 0;
            transition: all var(--transition);
            min-height: 48px;
            padding: 0 32px;
            font-size: 16px;
            line-height: 1;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(242, 100, 48, .25);
        }

        .btn-outline-light {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, .8);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            color: #fff;
        }

        .btn-outline-dark {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline-dark:hover {
            background: rgba(15, 118, 110, .08);
            color: var(--primary-dark);
        }

        .btn-sm {
            min-height: 36px;
            padding: 0 20px;
            font-size: 14px;
            border-radius: 8px;
        }

        .section-label {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: .5px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-sub {
            font-size: 16px;
            color: var(--body);
            max-width: 640px;
            line-height: 1.7;
        }

        @media(max-width:768px) {
            .section-title {
                font-size: 28px;
            }
            .section-sub {
                font-size: 15px;
            }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            transition: background .3s ease, box-shadow .3s ease;
            padding: 16px 0;
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            flex-shrink: 0;
        }

        .brand__icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, .16);
            border-radius: 12px;
            backdrop-filter: blur(4px);
        }

        .brand:hover {
            color: #fff;
        }

        .site-header .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .site-header .main-nav a {
            color: rgba(255, 255, 255, .88);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 8px;
            transition: color .25s ease, background .25s ease;
            position: relative;
        }

        .site-header .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
        }

        .site-header .main-nav a.active {
            color: #fff;
            font-weight: 600;
        }

        .site-header .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .header-cta .btn {
            min-height: 40px;
            padding: 0 24px;
            font-size: 14px;
        }

        .site-header.is-scrolled {
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(8px);
            box-shadow: 0 1px 0 var(--line);
            padding: 12px 0;
        }

        .site-header.is-scrolled .brand {
            color: var(--ink);
        }

        .site-header.is-scrolled .brand__icon {
            background: var(--primary-light);
        }

        .site-header.is-scrolled .main-nav a {
            color: var(--body);
        }

        .site-header.is-scrolled .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .site-header.is-scrolled .main-nav a.active {
            color: var(--primary);
        }

        .site-header.is-scrolled .btn-primary {
            background: var(--accent);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 0;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            cursor: pointer;
            position: relative;
            z-index: 1101;
        }

        .nav-toggle span {
            display: block;
            height: 2px;
            width: 22px;
            background: #fff;
            border-radius: 2px;
            margin: 5px auto;
            transition: background .3s ease;
        }

        .site-header.is-scrolled .nav-toggle span {
            background: var(--ink);
        }

        .nav-toggle.is-active span {
            background: var(--ink);
        }

        .nav-toggle.is-active span:first-child {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.is-active span:last-child {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 118, 110, .97);
            backdrop-filter: blur(12px);
            z-index: 1100;
            padding: 96px 40px 40px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            opacity: 0;
            pointer-events: none;
            transition: opacity .35s ease;
        }

        .mobile-nav.is-open {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-nav a {
            color: #fff;
            font-size: 24px;
            font-weight: 600;
            padding: 12px 0;
            text-align: center;
        }

        .mobile-nav a.active {
            color: #fff;
            border-bottom: 3px solid var(--accent);
        }

        .mobile-nav .btn {
            margin-top: 24px;
            min-height: 48px;
            background: var(--accent);
            color: #fff;
            font-size: 16px;
            padding: 0 40px;
            border-radius: 10px;
        }

        .category-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(11, 79, 74, .93) 0%, rgba(15, 118, 110, .85) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 168px 0 88px;
            overflow: hidden;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            right: -80px;
            bottom: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            pointer-events: none;
        }

        .category-hero .breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }

        .category-hero .breadcrumb a {
            color: rgba(255, 255, 255, .85);
        }

        .category-hero .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .category-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, .5);
        }

        .category-hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: #fff;
        }

        .category-hero .hero-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, .78);
            max-width: 620px;
            line-height: 1.75;
        }

        @media(max-width:768px) {
            .category-hero {
                padding: 140px 0 56px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .category-hero .hero-desc {
                font-size: 16px;
            }
        }

        .notice-section {
            padding: 48px 0 0;
            position: relative;
        }

        .notice-banner {
            display: flex;
            align-items: center;
            gap: 18px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 20px 28px;
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }

        .notice-banner::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--accent);
        }

        .notice-banner .notice-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .notice-banner .notice-content {
            flex: 1;
        }

        .notice-banner .notice-content strong {
            display: block;
            font-size: 16px;
            color: var(--ink);
            margin-bottom: 2px;
        }

        .notice-banner .notice-content span {
            font-size: 14px;
            color: var(--body);
        }

        .notice-banner .notice-link {
            flex-shrink: 0;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
        }

        .notice-banner .notice-link:hover {
            color: var(--accent);
        }

        @media(max-width:768px) {
            .notice-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }
            .notice-banner .notice-link {
                margin-top: 8px;
            }
        }

        .news-list-section {
            padding: var(--section-pad) 0;
        }

        .news-list-section .section-head {
            margin-bottom: 40px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }

        .news-card__media {
            position: relative;
            display: block;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .news-card__media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .news-card:hover .news-card__media img {
            transform: scale(1.05);
        }

        .news-card__badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: .5px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, .2);
        }

        .news-card__body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-card__body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .news-card__body h3 a {
            color: inherit;
        }

        .news-card__body h3 a:hover {
            color: var(--primary);
        }

        .news-card__body p {
            font-size: 14px;
            color: var(--body);
            line-height: 1.7;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card__meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--meta);
            padding-top: 14px;
            border-top: 1px solid var(--line);
        }

        .news-card__meta .meta-cat {
            color: var(--primary);
            font-weight: 500;
        }

        @media(max-width:1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media(max-width:640px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-list-section {
                --section-pad: 56px;
            }
        }

        .faq-section {
            padding: var(--section-pad) 0;
            background: var(--primary-light);
        }

        .faq-section .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .faq-section .section-sub {
            margin: 0 auto;
        }

        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }

        .accordion {
            background: transparent;
        }

        .accordion-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .accordion-item.is-active {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(15, 118, 110, .08);
        }

        .accordion-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: transparent;
            border: 0;
            border-radius: 0;
            position: relative;
        }

        .accordion-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: transparent;
            border-radius: 0 3px 3px 0;
            transition: background .25s ease;
        }

        .accordion-item.is-active .accordion-title::before {
            background: var(--accent);
        }

        .accordion-title:hover {
            color: var(--primary);
            background: transparent;
        }

        .accordion-title::after {
            content: "";
            width: 10px;
            height: 10px;
            border: solid var(--meta);
            border-width: 0 2px 2px 0;
            transform: rotate(45deg);
            flex-shrink: 0;
            transition: transform .3s ease, border-color .3s ease;
            position: static;
            margin: 0;
        }

        .accordion-item.is-active .accordion-title::after {
            transform: rotate(-135deg);
            border-color: var(--primary);
        }

        .accordion-content {
            padding: 0 24px 20px;
            border: 0;
            background: transparent;
        }

        .accordion-content p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--body);
        }

        @media(max-width:640px) {
            .faq-section {
                --section-pad: 56px;
            }
            .accordion-title {
                font-size: 15px;
                padding: 16px 18px;
            }
            .accordion-content {
                padding: 0 18px 16px;
            }
        }

        .cat-index-section {
            padding: var(--section-pad) 0;
        }

        .cat-index-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            max-width: 960px;
            margin: 0 auto;
        }

        .cat-index-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            transition: all var(--transition);
            display: block;
        }

        .cat-index-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }

        .cat-index-card .cat-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: 16px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .cat-index-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }

        .cat-index-card p {
            font-size: 14px;
            color: var(--body);
            line-height: 1.6;
        }

        .cat-index-card.is-current {
            background: var(--page-bg);
            border-color: var(--line);
            cursor: default;
            opacity: .75;
            box-shadow: none;
        }

        .cat-index-card.is-current h3 {
            color: var(--meta);
        }

        .cat-index-card.is-current .cat-icon {
            background: #e8e5de;
            color: var(--meta);
        }

        @media(max-width:768px) {
            .cat-index-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
            }
            .cat-index-section {
                --section-pad: 56px;
            }
        }

        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 88px 0 96px;
            position: relative;
            overflow: hidden;
            text-align: center;
            color: #fff;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            top: 0;
            height: 60px;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 60' preserveAspectRatio='none'%3E%3Cpath d='M0 30C200 0 400 60 600 30S1000 0 1200 30V60H0Z' fill='%23F6F4EF' opacity='0.15'/%3E%3C/svg%3E") top center/cover no-repeat;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
            color: #fff;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            max-width: 560px;
            margin: 0 auto 36px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-section .btn-outline-light {
            border-color: rgba(255, 255, 255, .7);
        }

        @media(max-width:768px) {
            .cta-section {
                padding: 64px 0 72px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
        }

        .site-footer {
            background: #12201F;
            color: rgba(255, 255, 255, .7);
            padding: 64px 0 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
        }

        .footer-brand .brand__icon {
            background: rgba(255, 255, 255, .1);
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 260px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .7);
            transition: all .25s ease;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: color .25s ease, padding-left .25s ease;
        }

        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-col ul li {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .45);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media(max-width:1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media(max-width:640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        .back-to-top {
            position: fixed;
            right: 24px;
            bottom: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            border: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 6px 18px rgba(15, 118, 110, .3);
            transition: background .25s ease, transform .25s ease;
            z-index: 999;
        }

        .back-to-top:hover {
            background: var(--accent);
            transform: translateY(-3px);
        }

        @media(max-width:640px) {
            .back-to-top {
                right: 16px;
                bottom: 16px;
                width: 38px;
                height: 38px;
            }
        }