/* roulang page: index */
:root {
  --green: #00B578;
  --green-dark: #009966;
  --deep-green: #0B2A23;
  --deep-green-2: #102F28;
  --paper: #F4F2EA;
  --white: #FFFFFF;
  --amber: #FFB547;
  --signal: #DDFF53;
  --text-main: #16241F;
  --text-sub: #5D6B65;
  --text-weak: #8A968F;
  --border-1: #E4E2D4;
  --border-2: #ECEADF;
  --danger: #E5484D;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 6px 20px rgba(8, 35, 29, 0.08);
  --shadow-hover: 0 10px 28px rgba(8, 35, 29, 0.12);
  --font-main: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Source Han Sans SC", sans-serif;
  --transition: all .25s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--paper);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
input, select { font-family: inherit; font-size: 14px; outline: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 36px; flex-wrap: wrap; }
.section-kicker { font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--green); text-transform: uppercase; margin-bottom: 8px; }
.section-head h2 { font-size: 32px; font-weight: 700; line-height: 1.3; color: var(--text-main); }
.section-head .desc { color: var(--text-sub); font-size: 15px; max-width: 620px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: 15px; height: 44px; padding: 0 24px; border-radius: var(--radius-sm); transition: var(--transition); border: 1px solid transparent; cursor: pointer; }
.btn-lg { height: 50px; padding: 0 32px; font-size: 16px; }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: #00c185; transform: translateY(-2px); }
.btn-primary:active { transform: scale(0.98); }
.btn-secondary-white { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .55); }
.btn-secondary-white:hover { border-color: #fff; background: rgba(255, 255, 255, .08); }
.btn-secondary-dark { background: transparent; color: var(--text-main); border-color: #c9c7b8; }
.btn-secondary-dark:hover { border-color: var(--green); color: var(--green); }
.btn:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

/* 标签 */
.tag { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 14px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600; background: var(--white); color: var(--text-main); border: 1px solid var(--border-1); }
.tag-green { background: var(--deep-green); color: #fff; }
.tag-live { background: rgba(255, 255, 255, .16); color: #fff; border: 1px solid rgba(255, 255, 255, .22); }
.tag-live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.tag-amber { background: var(--amber); color: #241b0d; border-color: transparent; }

/* 头部导航 */
.site-header { position: fixed; top: 0; left: 0; right: 0; height: 68px; z-index: 100; transition: background .3s ease, backdrop-filter .3s ease; }
.site-header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-header.is-scrolled { background: rgba(11, 42, 35, .92); backdrop-filter: blur(14px); box-shadow: 0 4px 24px rgba(0, 0, 0, .12); }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 20px; font-weight: 800; letter-spacing: .5px; white-space: nowrap; }
.brand-mark { width: 30px; height: 30px; border-radius: 7px; background: var(--green); display: flex; align-items: center; justify-content: center; font-size: 17px; font-weight: 800; color: #fff; flex-shrink: 0; font-family: Arial; position: relative; overflow: hidden; }
.brand-mark::after { content: ""; position: absolute; width: 12px; height: 12px; background: var(--signal); right: -5px; bottom: -5px; transform: rotate(45deg); opacity: .55; }
.main-menu { display: flex; align-items: center; }
.main-menu ul { display: flex; align-items: center; gap: 4px; }
.main-menu a { display: block; padding: 8px 14px; color: rgba(255, 255, 255, .78); font-size: 15px; font-weight: 500; border-radius: var(--radius-sm); transition: var(--transition); position: relative; }
.main-menu a:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.main-menu a.active { color: #fff; }
.main-menu a.active::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px; border-radius: 2px; background: var(--green); }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.nav-cta { height: 40px; padding: 0 18px; font-size: 14px; }
.icon-btn { width: 42px; height: 42px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: #fff; background: transparent; border: 1px solid transparent; transition: var(--transition); }
.icon-btn:hover { background: rgba(255, 255, 255, .08); }
.icon-btn:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }
.menu-toggle { display: none; }
.mobile-drawer { position: fixed; top: 0; right: -100%; width: min(86vw, 420px); height: 100vh; background: var(--deep-green); z-index: 199; padding: 40px 32px; transition: right .35s ease; overflow-y: auto; }
.mobile-drawer.open { right: 0; }
.drawer-close { color: #fff; font-size: 26px; line-height: 1; position: absolute; top: 16px; right: 20px; width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.drawer-close:hover { background: rgba(255, 255, 255, .08); }
.drawer-brand { color: #fff; font-size: 20px; font-weight: 800; display: flex; gap: 10px; align-items: center; margin-bottom: 40px; }
.mobile-drawer ul li + li { border-top: 1px solid rgba(255, 255, 255, .08); }
.mobile-drawer ul a { display: flex; align-items: center; justify-content: space-between; color: rgba(255, 255, 255, .85); font-size: 18px; font-weight: 600; padding: 18px 2px; }
.mobile-drawer ul a::after { content: "›"; font-size: 24px; opacity: .4; }
.mobile-drawer ul a:hover { color: #fff; }
.drawer-btn { margin-top: 36px; width: 100%; }
.drawer-mask { position: fixed; inset: 0; background: rgba(0, 0, 0, .42); z-index: 198; opacity: 0; pointer-events: none; transition: opacity .3s; }
.drawer-mask.open { opacity: 1; pointer-events: auto; }

/* Hero */
.hero { position: relative; min-height: 720px; background: var(--deep-green); overflow: hidden; padding: 140px 0 96px; display: flex; align-items: center; }
.hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.webp'); background-size: cover; background-position: center; }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(11, 42, 35, .95) 0%, rgba(11, 42, 35, .88) 40%, rgba(11, 42, 35, .58) 100%); }
.hero-copy { position: relative; z-index: 2; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 14px; border-radius: var(--radius-pill); background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .16); color: #fff; font-size: 13px; letter-spacing: 1px; margin-bottom: 26px; }
.hero-copy h1 { font-size: 48px; font-weight: 800; color: #fff; line-height: 1.22; letter-spacing: -.5px; max-width: 600px; }
.hero-copy h1 em { font-style: normal; color: var(--green); }
.hero-lead { font-size: 17px; color: rgba(255, 255, 255, .76); margin-top: 22px; max-width: 520px; line-height: 1.8; }
.hero-btns { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 16px 34px; margin-top: 42px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .14); }
.hero-trust-item .label { display: block; font-size: 12px; color: rgba(255, 255, 255, .58); margin-bottom: 3px; }
.hero-trust-item .value { display: block; font-size: 15px; font-weight: 600; color: var(--signal); font-variant-numeric: tabular-nums; }

/* hero visual */
.hero-visual { position: relative; z-index: 2; padding-left: 30px; }
.hero-media { position: relative; width: 260px; height: 370px; border-radius: 20px; overflow: hidden; border: 1px solid rgba(255, 255, 255, .16); margin-left: auto; box-shadow: 0 20px 60px rgba(0, 0, 0, .35); background: #ddd; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(11, 42, 35, .75)); }
.live-corner { position: absolute; top: 14px; left: 14px; z-index: 2; display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 700; background: rgba(11, 42, 35, .7); color: #fff; padding: 4px 10px; border-radius: 999px; letter-spacing: 1px; }
.live-corner::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.hero-offset-card { position: absolute; right: -34px; bottom: 18px; width: 225px; background: rgba(16, 47, 40, .92); border: 1px solid rgba(255, 255, 255, .18); border-radius: 12px; padding: 12px 14px; box-shadow: 0 12px 34px rgba(0, 0, 0, .28); backdrop-filter: blur(6px); z-index: 3; }
.mini-head { display: flex; align-items: center; gap: 10px; }
.mini-cover { width: 42px; height: 42px; border-radius: 8px; overflow: hidden; flex-shrink: 0; background: #16241f; }
.mini-cover img { width: 100%; height: 100%; object-fit: cover; }
.mini-text { min-width: 0; }
.mini-text strong { display: block; color: #fff; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mini-text span { font-size: 11px; color: rgba(255, 255, 255, .6); }
.progress { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .14); margin-top: 12px; overflow: hidden; }
.progress i { display: block; width: 74%; height: 100%; background: var(--green); border-radius: 4px; }
.hero-side-tag { position: absolute; top: 0; right: 30px; z-index: 3; font-size: 12px; font-weight: 700; color: rgba(255, 255, 255, .7); transform: rotate(90deg); transform-origin: top right; letter-spacing: 6px; }
@media (max-width: 1200px) {
  .hero-offset-card { right: -6px; }
}
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }

/* ticker */
.ticker { background: var(--green); overflow: hidden; padding: 10px 0; position: relative; z-index: 5; }
.ticker-track { display: flex; width: max-content; animation: tickerMove 36s linear infinite; }
.ticker-track span { display: block; padding: 0 20px; color: var(--deep-green); font-weight: 700; font-size: 14px; white-space: nowrap; }
.ticker-track i { font-style: normal; color: var(--deep-green); opacity: .45; }
@keyframes tickerMove {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* hot card section */
.hot-section { background: var(--paper); }
.hot-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.hot-card { background: #fff; border: 1px solid var(--border-2); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); position: relative; display: block; }
.hot-card:hover { transform: translateY(-4px); border-color: rgba(0, 181, 120, .35); box-shadow: var(--shadow-card); }
.hot-card-cover { position: relative; aspect-ratio: 3 / 4; overflow: hidden; background: #e9e7dc; }
.hot-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.hot-card:hover .hot-card-cover img { transform: scale(1.04); }
.hot-card-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,42,35,0) 60%, rgba(11,42,35,.45)); }
.hot-rank { position: absolute; top: 12px; left: 12px; z-index: 2; font-size: 12px; font-weight: 800; color: var(--deep-green); background: var(--amber); padding: 2px 10px; border-radius: 999px; letter-spacing: .5px; }
.hot-overlay { position: absolute; left: 0; right: 0; bottom: 10px; z-index: 2; text-align: center; opacity: 0; transform: translateY(8px); transition: var(--transition); }
.hot-card:hover .hot-overlay { opacity: 1; transform: translateY(0); }
.hot-overlay span { display: inline-flex; align-items: center; justify-content: center; height: 34px; padding: 0 18px; background: var(--green); color: #fff; font-size: 13px; font-weight: 600; border-radius: 999px; }
.hot-card-info { padding: 16px 16px 18px; }
.hot-card-info h3 { font-size: 16px; line-height: 1.6; font-weight: 700; color: var(--text-main); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; min-height: 51px; }
.hot-card-info p { font-size: 13px; color: var(--text-weak); line-height: 1.7; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; margin-top: 8px; }
.hot-meta { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text-sub); margin-top: 12px; padding-top: 8px; border-top: 1px solid var(--border-2); }
.hot-meta .hot-more { color: var(--green); font-weight: 600; }
.hot-meta .hot-more:hover { text-decoration: underline; }

/* rank list */
.rank-section { background: #fff; border-top: 1px solid var(--border-2); border-bottom: 1px solid var(--border-2); }
.rank-list { }
.rank-item { position: relative; display: grid; grid-template-columns: 78px 112px 1fr auto; gap: 24px; align-items: center; padding: 22px 18px; border-radius: var(--radius-md); transition: var(--transition); }
.rank-item + .rank-item { border-top: 1px solid var(--border-2); }
.rank-item:hover { background: var(--paper); box-shadow: var(--shadow-card); transform: translateX(6px); }
.rank-no { font-size: 34px; font-weight: 800; color: rgba(22, 36, 31, .12); font-family: Arial; letter-spacing: .5px; }
.rank-thumb { width: 100px; height: 74px; border-radius: var(--radius-md); overflow: hidden; background: #e3e1d6; }
.rank-thumb img { width: 100%; height: 100%; object-fit: cover; }
.rank-info h3 { font-size: 17px; font-weight: 700; color: var(--text-main); margin-bottom: 3px; }
.rank-info p { font-size: 14px; color: var(--text-sub); }
.rank-tag { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--green); background: rgba(0,181,120,.08); border-radius: 999px; padding: 2px 10px; margin-top: 7px; font-weight: 600; }
.rank-action { }
.pill-btn { display: inline-flex; align-items: center; justify-content: center; height: 32px; padding: 0 18px; border-radius: 999px; background: #fff; border: 1px solid var(--border-1); color: var(--text-main); font-size: 13px; font-weight: 600; transition: var(--transition); }
.pill-btn:hover { border-color: var(--green); color: var(--green); background: rgba(0,181,120,.05); }
.rank-more-wrap { display: flex; justify-content: center; margin-top: 48px; }

/* review */
.review-section { background: var(--deep-green); color: #fff; }
.review-section .section-head h2 { color: #fff; }
.review-title-sub { color: rgba(255,255,255,.45); font-size: 13px; letter-spacing: 2px; margin-top: 4px; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.review-card { background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .08); border-radius: var(--radius-md); padding: 26px 24px; transition: var(--transition); }
.review-card:hover { background: rgba(255, 255, 255, .1); transform: translateY(-4px); }
.review-profile { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--green); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 16px; flex-shrink: 0; }
.avatar.avatar-2 { background: var(--amber); color: #241b0d; }
.review-profile em { font-style: normal; font-weight: 600; color: rgba(255,255,255,.9); display: block; font-size: 14px; }
.review-profile span { font-size: 12px; color: rgba(255,255,255,.5); }
.star-line { display: flex; color: var(--amber); gap: 2px; margin-bottom: 14px; }
.star-line svg { width: 15px; height: 15px; }
.review-card blockquote p { color: rgba(255,255,255,.8); font-size: 15px; line-height: 1.8; }

/* news area */
.news-area { background: var(--paper); }
.news-wrap { display: grid; grid-template-columns: .95fr 1.55fr; gap: 24px; }
.news-feature-card { background: #fff; border: 1px solid var(--border-2); border-radius: var(--radius-md); overflow: hidden; padding-bottom: 22px; }
.news-feature-cover { height: 220px; overflow: hidden; background: #e7e5da; }
.news-feature-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-feature-card:hover .news-feature-cover img { transform: scale(1.04); }
.news-feature-body { padding: 18px 22px 10px; }
.news-feature-body .cat { display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 10px; background: var(--deep-green); color: #fff; border-radius: 999px; font-size: 12px; margin-bottom: 12px; }
.news-feature-body .cat::before { content: ""; width: 5px; height: 5px; background: var(--green); border-radius: 50%; }
.news-feature-body h3 { font-size: 20px; line-height: 1.55; font-weight: 700; color: var(--text-main); }
.news-feature-body p { font-size: 14px; color: var(--text-sub); margin-top: 10px; line-height: 1.8; }
.news-feature-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; color: var(--green); font-size: 14px; font-weight: 600; }
.news-feature-link:hover { text-decoration: underline; }
.cms-list { background: #fff; border: 1px solid var(--border-2); border-radius: var(--radius-md); padding: 0 22px; }
.cms-item { display: block; padding: 20px 0; border-bottom: 1px solid var(--border-2); transition: var(--transition); }
.cms-item:last-child { border-bottom: none; }
.cms-item:hover { background: rgba(0,181,120,.025); }
.cms-top { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--text-sub); margin-bottom: 7px; flex-wrap: wrap; }
.cms-top .category { color: var(--green); font-weight: 700; }
.cms-item h3 { font-size: 16px; font-weight: 700; color: var(--text-main); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cms-item .excerpt { font-size: 14px; color: var(--text-sub); margin-top: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cms-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 260px; color: var(--text-weak); }
.cms-empty svg { width: 42px; height: 42px; stroke: var(--text-weak); margin-bottom: 12px; }
.cms-empty p { font-size: 15px; }

/* CTA strip */
.cta-strip { background: #fff; position: relative; overflow: hidden; }
.cta-strip::before { content: ""; position: absolute; right: -80px; top: -80px; width: 380px; height: 380px; background: radial-gradient(circle, rgba(0,181,120,.12) 0%, transparent 70%); }
.action-wrap { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.action-copy h2 { font-size: 32px; font-weight: 700; line-height: 1.35; margin-bottom: 18px; }
.action-copy h2 em { font-style: normal; color: var(--green); }
.action-steps { margin-top: 10px; }
.action-step { display: flex; gap: 16px; align-items: flex-start; padding: 14px 0; border-top: 1px solid var(--border-2); }
.action-step:last-child { border-bottom: 1px solid var(--border-2); }
.step-num { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--deep-green); color: var(--signal); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; margin-top: 4px; }
.action-step b { display: block; font-size: 15px; font-weight: 700; color: var(--text-main); }
.action-step span { display: block; font-size: 14px; color: var(--text-sub); }
.action-card { background: #fff; border-radius: var(--radius-md); padding: 30px 28px; border: 1px solid rgba(0,181,120,.25); box-shadow: var(--shadow-card); }
.action-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 18px; }
.field-group { margin-bottom: 14px; }
.field-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--text-main); }
.field-group select, .field-group input { width: 100%; height: 46px; border-radius: var(--radius-sm); border: 1px solid var(--border-1); background: var(--paper); padding: 0 14px; font-size: 15px; color: var(--text-main); transition: var(--transition); }
.field-group select:focus, .field-group input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(0,181,120,.12); background: #fff; }
.action-submit { width: 100%; margin-top: 8px; }

/* FAQ */
.faq-section { background: var(--paper); }
.faq-layout { display: grid; grid-template-columns: .75fr 1.5fr; gap: 60px; }
.faq-left h2 { font-size: 32px; font-weight: 700; margin-top: 10px; }
.faq-left p { color: var(--text-sub); font-size: 15px; margin-top: 18px; line-height: 1.8; }
.faq-help { display: flex; gap: 12px; margin-top: 24px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--border-2); border-radius: var(--radius-md); transition: var(--transition); }
.faq-item:hover { border-color: rgba(0,181,120,.3); }
.faq-item[open] { border-color: rgba(0,181,120,.3); box-shadow: var(--shadow-card); }
.faq-item summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; font-size: 16px; font-weight: 600; line-height: 1.6; color: var(--text-main); user-select: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; flex-shrink: 0; width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--paper); color: var(--green); font-size: 20px; font-weight: 500; transition: var(--transition); }
.faq-item[open] summary::after { content: "−"; background: var(--green); color: #fff; }
.faq-answer { padding: 0 22px 20px; color: var(--text-sub); font-size: 15px; line-height: 1.85; }

/* footer */
.site-footer { background: var(--deep-green); color: rgba(255, 255, 255, .68); padding-top: 56px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer-brand .brand { font-size: 22px; }
.footer-brand p { font-size: 14px; margin-top: 16px; max-width: 320px; color: rgba(255, 255, 255, .55); }
.footer-col h3 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul li { padding: 5px 0; }
.footer-col ul a { font-size: 14px; color: rgba(255, 255, 255, .62); transition: var(--transition); }
.footer-col ul a:hover { color: var(--green); }
.footer-bottom { padding: 24px 0 30px; 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); transition: var(--transition); }
.footer-bottom a:hover { color: var(--green); }

/* focus visible */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

/* 响应式 */
@media (max-width: 1200px) {
  .hero-copy h1 { font-size: 42px; }
  .hot-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-offset-card { right: 10px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1023px) {
  .main-menu { display: none; }
  .menu-toggle { display: flex; }
  .menu-toggle .icon-btn { color: #fff; font-size: 22px; }
  .nav-cta { display: none; }
  .hero { padding-top: 120px; }
  .hero-grid { grid-template-columns: 1fr; gap: 60px; }
  .hero-visual { padding-left: 0; }
  .hero-media { width: 210px; height: 300px; margin: 0 auto; }
  .hero-offset-card { right: 24px; bottom: -10px; }
  .hero-side-tag { display: none; }
  .hot-grid { grid-template-columns: repeat(3, 1fr); }
  .news-wrap { grid-template-columns: 1fr; }
  .action-wrap { grid-template-columns: 1fr; gap: 40px; }
  .faq-layout { grid-template-columns: 1fr; gap: 36px; }
  .review-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .section { padding: 56px 0; }
  .container { padding: 0 20px; }
  .site-header { height: 56px; }
  .brand { font-size: 17px; }
  .brand-mark { width: 26px; height: 26px; border-radius: 6px; font-size: 14px; }
  .hero { min-height: auto; padding: 100px 0 64px; }
  .hero-copy h1 { font-size: 30px; line-height: 1.3; }
  .hero-lead { font-size: 15px; }
  .hero-btns .btn { width: 100%; }
  .hero-trust { gap: 18px 22px; }
  .hero-visual { margin-top: 8px; }
  .hero-media { height: 260px; width: 180px; }
  .hero-offset-card { width: 190px; right: 2%; bottom: 6px; }
  .hot-grid { display: grid; grid-auto-flow: column; grid-auto-columns: 190px; grid-template-columns: none; overflow-x: auto; gap: 16px; scroll-snap-type: x mandatory; padding-bottom: 12px; margin-right: -20px; padding-right: 20px; }
  .hot-card { scroll-snap-align: start; }
  .section-head h2 { font-size: 26px; }
  .form-head-desc { font-size: 14px; }
  .rank-item { grid-template-columns: 46px 80px 1fr; gap: 12px; padding: 16px 10px; }
  .rank-thumb { width: 72px; height: 72px; border-radius: 10px; }
  .rank-no { font-size: 26px; }
  .rank-action { display: none; }
  .rank-info h3 { font-size: 16px; line-height: 1.5; }
  .rank-info p { font-size: 13px; }
  .review-grid { grid-template-columns: 1fr; display: flex; gap: 14px; overflow-x: auto; padding-bottom: 10px; }
  .review-card { min-width: 260px; }
  .news-feature-cover { height: 180px; }
  .action-copy h2 { font-size: 28px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px 22px; }
  .footer-bottom { text-align: center; }
}
@media (min-width: 1024px) {
  .mobile-drawer, .drawer-mask { display: none; }
}

/* roulang page: category1 */
:root{
  --green:#00B578;
  --green-hover:#00CC86;
  --dark:#0B2A23;
  --dark-2:#102F28;
  --panel-border:#2D4B43;
  --paper:#F4F2EA;
  --card:#FFFFFF;
  --amber:#FFB547;
  --lime:#DDFF53;
  --ink:#16241F;
  --sub:#5D6B65;
  --weak:#8A968F;
  --line:#E4E2D4;
  --divider:#ECEADF;
  --danger:#E5484D;
  --radius:8px;
  --radius-lg:12px;
  --shadow:0 6px 20px rgba(8,35,29,.08);
  --container:1280px;
  --header-h:68px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
ul,ol{list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:76px 0}

.site-header{
  position:sticky;top:0;z-index:120;
  height:var(--header-h);
  background:rgba(11,42,35,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.02em;white-space:nowrap}
.brand-mark{
  width:32px;height:32px;border-radius:6px;background:var(--green);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-weight:900;font-size:17px;line-height:1;box-shadow:0 0 0 3px rgba(0,181,120,.18);
}
.main-menu ul{display:flex;align-items:center;gap:34px}
.main-menu a{
  display:block;padding:6px 0;color:rgba(255,255,255,.76);font-size:15px;font-weight:500;
  position:relative;transition:color .2s;
}
.main-menu a:hover{color:#fff}
.main-menu a.active{color:#fff;font-weight:600}
.main-menu a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:99px;background:var(--green);
}
.header-tools{display:flex;align-items:center;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:6px;font-size:15px;font-weight:600;
  transition:background .2s,border-color .2s,transform .15s,box-shadow .2s;
  line-height:1;white-space:nowrap;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-hover);box-shadow:0 6px 18px rgba(0,181,120,.26)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{border-color:var(--green);color:var(--green)}
.btn-light{background:#fff;color:var(--dark);border:1px solid #fff}
.btn-light:hover{background:var(--lime);border-color:var(--lime)}
.btn-sm{height:36px;padding:0 14px;font-size:14px}
.nav-toggle{display:none;width:38px;height:38px;border-radius:6px;border:1px solid rgba(255,255,255,.2);position:relative}
.nav-toggle span{position:absolute;left:9px;right:9px;height:2px;border-radius:2px;background:#fff;transition:transform .2s,top .2s,opacity .2s}
.nav-toggle span:nth-child(1){top:12px}
.nav-toggle span:nth-child(2){top:18px}
.nav-toggle span:nth-child(3){top:24px}
.nav-toggle.open span:nth-child(1){top:18px;transform:rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){top:18px;transform:rotate(-45deg)}

.main{
  background:var(--paper);
}

.page-hero{
  position:relative;
  background:linear-gradient(96deg,rgba(11,42,35,.58),rgba(11,42,35,.86)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  background-color:var(--dark);
  color:#fff;
  padding:74px 0 56px;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(120deg,rgba(11,42,35,.15),transparent 55%);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .7fr;gap:56px;align-items:center}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.56);margin-bottom:18px}
.breadcrumbs a{color:rgba(255,255,255,.72);transition:color .2s}
.breadcrumbs a:hover{color:var(--green)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);
  color:rgba(255,255,255,.9);font-size:12px;font-weight:600;border-radius:999px;
  letter-spacing:.12em;margin-bottom:20px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(0,181,120,.22);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.page-hero h1{
  font-size:52px;line-height:1.16;font-weight:800;letter-spacing:-.01em;
  margin-bottom:18px;position:relative;
}
.page-hero h1 .mk{color:var(--green)}
.hero-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:620px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-panel{display:flex;flex-direction:column;gap:16px}
.status-panel{
  background:rgba(255,255,255,.06);border:1px solid var(--panel-border);border-radius:var(--radius-lg);
  padding:24px;backdrop-filter:blur(6px);
}
.status-title{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:18px;color:#fff}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--green);display:inline-block;box-shadow:0 0 0 5px rgba(0,181,120,.18)}
.status-title i{margin-left:auto;font-size:11px;font-style:normal;letter-spacing:.2em;color:rgba(255,255,255,.45);background:rgba(255,255,255,.08);padding:3px 8px;border-radius:99px}
.status-list li{
  display:flex;justify-content:space-between;gap:18px;padding:9px 0;
  font-size:14px;color:rgba(255,255,255,.76);border-bottom:1px dashed rgba(255,255,255,.12);
}
.status-list li:last-child{border-bottom:0}
.status-list b{color:#fff;font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.version-panel{
  background:transparent;border:1px dashed rgba(255,255,255,.3);border-radius:var(--radius);
  padding:14px 18px;color:rgba(255,255,255,.68);font-size:13px;
  display:flex;align-items:center;justify-content:space-between;
}
.version-panel b{color:var(--lime);font-weight:700;letter-spacing:.04em}

.hero-ticker{
  position:relative;z-index:2;background:var(--green);color:var(--dark);
  overflow:hidden;padding:11px 0;margin-top:54px;transform:translateY(0);
}
.ticker-track{
  display:inline-flex;align-items:center;white-space:nowrap;gap:32px;
  animation:tickerMove 36s linear infinite;will-change:transform;padding-left:16px;
}
.ticker-track span{font-size:14px;font-weight:700;letter-spacing:.04em}
.ticker-track i{font-style:normal;opacity:.55}
@keyframes tickerMove{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

.guide-feature{background:var(--paper)}
.guide-grid{display:grid;grid-template-columns:1.55fr .95fr;gap:24px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.section-head h2{font-size:32px;font-weight:800;line-height:1.25}
.section-head h2 small{
  display:block;font-size:14px;color:var(--weak);font-weight:500;letter-spacing:.05em;margin-top:6px;
}
.section-link{font-size:14px;font-weight:600;color:var(--green);display:inline-flex;align-items:center;gap:6px}
.section-link:hover{text-decoration:underline}

.card{background:var(--card);border:1px solid var(--divider);border-radius:var(--radius);overflow:hidden;transition:border-color .2s,box-shadow .2s,transform .2s}
.card:hover{border-color:rgba(0,181,120,.45);box-shadow:var(--shadow);transform:translateY(-2px)}
.feature-panel{display:flex;flex-direction:column;min-height:100%}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.feature-panel:hover img{transform:scale(1.03)}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(11,42,35,.45));opacity:.4;transition:opacity .3s}
.feature-panel:hover .feature-media::after{opacity:.7}
.feature-flag{position:absolute;top:14px;left:14px;z-index:2;background:var(--amber);color:var(--ink);font-size:12px;font-weight:800;padding:4px 10px;border-radius:99px;letter-spacing:.05em}
.feature-content{display:flex;flex-direction:column;gap:14px;padding:24px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;background:var(--dark);color:#fff;
  font-size:12px;font-weight:600;border-radius:999px;width:max-content;
}
.tag.light-tag{background:rgba(0,181,120,.14);color:#00855B}
.feature-content h3{font-size:23px;line-height:1.45;font-weight:750}
.feature-content p{color:var(--sub);font-size:15px;line-height:1.8}
.feature-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.text-link{font-size:14px;font-weight:600;color:var(--green);display:inline-flex;align-items:center;gap:6px}
.text-link:hover{gap:10px;text-decoration:underline}
.text-link .arr{font-size:17px;line-height:1}
.side-list{display:flex;flex-direction:column;gap:20px}
.side-row{display:flex;gap:16px;padding:16px;align-items:center;min-height:104px}
.side-img{width:108px;height:84px;border-radius:8px;object-fit:cover;background:#ECEADF}
.side-content{display:flex;flex-direction:column;gap:6px;min-width:0}
.side-content h3{font-size:17px;line-height:1.5;font-weight:700}
.side-content p{font-size:13px;color:var(--sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-meta{display:flex;align-items:center;gap:12px;margin-top:2px}
.side-meta .tag{height:20px;font-size:11px;padding:0 8px}
.side-meta time{font-size:12px;color:var(--weak)}

.access-methods{background:var(--card)}
.access-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}
.method-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:var(--paper);transition:box-shadow .2s}
.method-card:hover{box-shadow:var(--shadow)}
.method-top{display:flex;align-items:center;gap:16px;margin-bottom:20px}
.method-icon{
  width:50px;height:50px;border-radius:12px;background:var(--dark);color:var(--green);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;
}
.method-top h3{font-size:20px;font-weight:750}
.method-list{counter-reset:method}
.method-list li{
  counter-increment:method;display:flex;gap:13px;align-items:baseline;padding:9px 0;color:var(--ink);font-size:15px;position:relative;padding-left:0;
}
.method-list li::before{
  content:counter(method,decimal-leading-zero);font-size:12px;font-weight:800;color:var(--green);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;flex-shrink:0;
}
.tip-strip{
  display:flex;align-items:center;gap:18px;background:rgba(0,181,120,.08);border-left:4px solid var(--green);
  border-radius:2px 10px 10px 2px;padding:18px 22px;font-size:15px;color:var(--dark);
}
.tip-strip b{font-weight:700;color:var(--green)}
.tip-icon{color:var(--green);font-size:20px;font-weight:800}

.process-strip{
  background:linear-gradient(130deg,rgba(11,42,35,.42),rgba(11,42,35,.86)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  background-color:var(--dark);color:#fff;padding:74px 0;
}
.process-strip .section-head h2{color:#fff}
.process-strip .section-head h2 small{color:rgba(255,255,255,.5)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.process-item{
  border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05);border-radius:var(--radius);
  padding:22px;position:relative;min-height:190px;transition:background .2s,border-color .2s;
}
.process-item:hover{background:rgba(255,255,255,.09);border-color:rgba(0,181,120,.65)}
.process-num{font-size:30px;font-weight:800;color:var(--green);line-height:1;display:block;margin-bottom:16px;font-variant-numeric:tabular-nums}
.process-item h3{font-size:17px;font-weight:700;margin-bottom:8px}
.process-item p{font-size:14px;color:rgba(255,255,255,.7);line-height:1.7}
.process-item .step-tag{font-size:11px;color:var(--lime);letter-spacing:.05em;margin-top:10px;display:inline-block}

.security-note{
  background:var(--dark);color:#fff;
}
.security-inner{
  display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;
  background:var(--dark-2);border:1px solid var(--panel-border);border-radius:var(--radius-lg);
  padding:36px 40px;
}
.security-mark{
  width:58px;height:58px;border-radius:50%;background:var(--lime);color:var(--dark);
  display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:800;
}
.security-inner h2{font-size:24px;font-weight:800;line-height:1.4;margin-bottom:6px}
.security-inner p{font-size:15px;color:rgba(255,255,255,.72);line-height:1.8}
.security-note .section{padding:50px 0}

.faq-section{background:var(--paper)}
.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:42px}
.faq-aside .section-head{margin-bottom:20px}
.faq-aside p{color:var(--sub);font-size:15px;margin-bottom:30px;line-height:1.9}
.contact-block{
  background:var(--card);border:1px solid var(--divider);border-radius:var(--radius);padding:24px;
  color:var(--sub);font-size:14px;
}
.contact-block b{font-size:15px;color:var(--ink);display:block;margin-bottom:10px}
.faq-list .faq-card{background:var(--card);border:1px solid var(--divider);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;padding:18px 20px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;transition:background .18s;
}
.faq-q:hover{background:rgba(0,181,120,.05)}
.faq-q .q-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--green);transition:transform .2s,background .2s;
}
.faq-q[aria-expanded="true"] .q-icon{transform:rotate(45deg);background:var(--green);color:#fff;border-color:var(--green)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;background:#FDFDFB}
.faq-a p{padding:2px 24px 20px 58px;font-size:15px;color:var(--sub);line-height:1.85}

.cta-section{background:var(--dark);position:relative;overflow:hidden}
.cta-section::before{
  content:"";position:absolute;width:340px;height:340px;right:-120px;top:-120px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,181,120,.28),transparent 70%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center}
.cta-label{display:inline-flex;align-items:center;height:30px;padding:0 14px;border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.75);font-size:12px;letter-spacing:.1em;border-radius:99px;margin-bottom:18px}
.cta-inner h2{font-size:34px;color:#fff;font-weight:800;line-height:1.3;margin-bottom:16px}
.cta-inner p{color:rgba(255,255,255,.75);font-size:15px;line-height:1.85;margin-bottom:28px}
.cta-inner .btn{margin-right:12px}
.cta-tips{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);
  padding:28px;color:#fff;
}
.cta-tips h3{font-size:19px;font-weight:700;margin-bottom:18px}
.cta-tips ul{display:flex;flex-direction:column;gap:12px}
.cta-tips li{display:flex;justify-content:space-between;gap:18px;font-size:14px;color:rgba(255,255,255,.78);border-bottom:1px dashed rgba(255,255,255,.14);padding-bottom:10px}
.cta-tips li b{color:var(--lime);font-variant-numeric:tabular-nums}
.cta-tips li:last-child{border-bottom:0;padding-bottom:0}

.site-footer{background:var(--dark);color:rgba(255,255,255,.7);font-size:14px}
.site-footer a{color:rgba(255,255,255,.72);transition:color .2s}
.site-footer a:hover{color:var(--green)}
.footer-top{display:grid;grid-template-columns:1.4fr .8fr .9fr .9fr;gap:42px;padding:54px 0 38px}
.footer-brand .brand{font-size:21px}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.55);max-width:330px}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:13px;color:rgba(255,255,255,.46);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--green)}

@media(max-width:1023px){
  .section{padding:62px 0}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .page-hero h1{font-size:44px}
  .hero-ticker{margin-top:36px}
  .guide-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .footer-top{grid-template-columns:1fr 1fr}
  .security-inner{grid-template-columns:auto 1fr;padding:30px}
}
@media(max-width:767px){
  :root{--header-h:56px}
  .container{padding:0 20px}
  .section{padding:50px 0}
  .main-menu{
    position:fixed;inset:var(--header-h) 0 0 0;background:var(--dark);z-index:110;
    display:none;padding:36px 28px;overflow-y:auto;
  }
  .main-menu.open{display:block}
  .main-menu ul{flex-direction:column;align-items:stretch;gap:24px}
  .main-menu a{font-size:22px;font-weight:700;color:rgba(255,255,255,.85)}
  .main-menu a.active{color:var(--green)}
  .main-menu a.active::after{display:none}
  .header-tools .header-cta{display:none}
  .nav-toggle{display:block}
  .brand{font-size:17px}
  .brand-mark{width:28px;height:28px;font-size:15px}
  .page-hero{padding:40px 0 36px}
  .page-hero h1{font-size:32px}
  .hero-lead{font-size:15px;line-height:1.8}
  .status-panel{padding:18px}
  .side-img{width:80px;height:66px}
  .access-grid{grid-template-columns:1fr}
  .tip-strip{flex-direction:column;align-items:flex-start;gap:8px;padding:16px 18px}
  .process-grid{grid-template-columns:1fr}
  .process-item{min-height:0}
  .security-inner{grid-template-columns:1fr;padding:24px;gap:18px}
  .security-mark{width:46px;height:46px;font-size:22px}
  .security-inner h2{font-size:20px}
  .faq-grid{grid-template-columns:1fr}
  .faq-a p{padding-left:58px}
  .cta-inner h2{font-size:27px}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:40px 0 24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section-head{flex-direction:column;align-items:flex-start}
  .section-head h2{font-size:27px}
}
@media(max-width:520px){
  .feature-content h3{font-size:20px}
  .feature-content{padding:18px}
  .status-list li{flex-direction:column;gap:4px}
  .status-list b{text-align:left}
  .cta-inner .btn{width:100%;margin-bottom:12px}
}

/* roulang page: article */
:root {
    --signal-green: #00B578;
    --deep-green: #0B2A23;
    --deep-green-2: #102F28;
    --amber: #FFB547;
    --lime: #DDFF53;
    --paper: #F4F2EA;
    --white: #FFFFFF;
    --ink: #16241F;
    --ink-sub: #5D6B65;
    --ink-soft: #8A968F;
    --line: #E4E2D4;
    --line-light: #ECEADF;
    --danger: #E5484D;
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-hover: 0 6px 20px rgba(8, 35, 29, 0.08);
    --container: 1280px;
    --header-h: 68px;
    --space-section: 72px;
    --transition: all 0.2s ease;
  }

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

  html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 20px);
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Source Han Sans SC", sans-serif;
    background: var(--paper);
    color: var(--ink);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }

  ul, ol {
    list-style: none;
  }

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

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

  button,
  input {
    font: inherit;
    border: 0;
    background: none;
  }

  button {
    cursor: pointer;
  }

  .container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  h1, h2, h3 {
    line-height: 1.25;
    font-weight: 800;
    color: var(--ink);
  }

  h1 {
    font-size: 46px;
    letter-spacing: -0.02em;
  }

  h2 {
    font-size: 30px;
    font-weight: 750;
  }

  h3 {
    font-size: 18px;
    font-weight: 650;
  }

  :focus-visible {
    outline: 2px solid var(--signal-green);
    outline-offset: 2px;
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    height: var(--header-h);
    transition: background 0.25s ease;
  }

  .site-header.scrolled {
    background: rgba(11, 42, 35, 0.9);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

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

  .header-left {
    display: flex;
    align-items: center;
    gap: 32px;
    min-width: 0;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--signal-green);
    color: var(--deep-green);
    font-weight: 900;
    font-size: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    letter-spacing: 0;
  }

  .brand-name {
    color: #fff;
    font-size: 18px;
    font-weight: 750;
    white-space: nowrap;
  }

  .main-menu ul {
    display: flex;
    gap: 4px;
    align-items: center;
  }

  .main-menu ul a {
    display: inline-flex;
    align-items: center;
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.92);
    font-size: 15px;
    font-weight: 500;
    white-space: nowrap;
  }

  .main-menu ul a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
  }

  .main-menu ul a.active {
    background: var(--signal-green);
    color: #ffffff;
    font-weight: 650;
  }

  .header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .header-search {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 38px;
    padding: 0 12px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    transition: var(--transition);
  }

  .header-search svg {
    width: 16px;
    height: 16px;
    stroke: rgba(255, 255, 255, 0.85);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
  }

  .header-search input {
    width: 92px;
    background: none;
    border: 0;
    outline: none;
    color: #fff;
    font-size: 13px;
  }

  .header-search input::placeholder {
    color: rgba(255, 255, 255, 0.55);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 650;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
    white-space: nowrap;
  }

  .btn:active {
    transform: scale(0.98);
  }

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

  .btn-primary:hover {
    background: #00cc8c;
    box-shadow: 0 4px 18px rgba(0, 181, 120, 0.25);
  }

  .btn-outline-light {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.7);
  }

  .btn-outline-light:hover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
  }

  .btn-header-cta {
    height: 38px;
    padding: 0 20px;
    background: var(--signal-green);
    color: #fff;
    font-size: 14px;
    font-weight: 650;
    border-radius: 999px;
  }

  .btn-header-cta:hover {
    background: #00cc8c;
  }

  .btn-lg {
    height: 52px;
    padding: 0 34px;
    font-size: 16px;
  }

  .menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.24);
    background: rgba(255, 255, 255, 0.05);
  }

  .menu-toggle svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    stroke-linecap: round;
  }

  .site-header.scrolled .menu-toggle {
    border-color: rgba(255, 255, 255, 0.18);
  }

  .mobile-drawer {
    display: none;
  }

  body.menu-open {
    overflow: hidden;
  }

  body.menu-open .mobile-drawer {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 300;
    background: rgba(11, 42, 35, 0.98);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }

  .mobile-drawer__inner {
    min-height: 100%;
    padding: calc(var(--header-h) + 24px) 24px 48px;
  }

  .mobile-drawer .drawer-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius);
    padding: 0 14px;
    height: 46px;
    margin-bottom: 28px;
  }

  .mobile-drawer .drawer-search svg {
    width: 17px;
    height: 17px;
    stroke: rgba(255, 255, 255, 0.8);
    fill: none;
    stroke-width: 2;
  }

  .mobile-drawer .drawer-search input {
    background: transparent;
    border: 0;
    outline: none;
    color: #fff;
    font-size: 15px;
    width: 100%;
  }

  .mobile-drawer .drawer-menu ul {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .mobile-drawer .drawer-menu a {
    display: block;
    padding: 14px 4px;
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    border-radius: var(--radius);
  }

  .mobile-drawer .drawer-menu a:hover {
    color: var(--signal-green);
  }

  .mobile-drawer .drawer-menu a.active {
    color: var(--signal-green);
  }

  .drawer-cta {
    margin-top: 30px;
    display: inline-flex;
  }

  .hero-flag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.03em;
    width: fit-content;
    margin-bottom: 18px;
  }

  .hero-flag .live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--signal-green);
    box-shadow: 0 0 0 3px rgba(0, 181, 120, 0.25);
  }

  .cat-hero {
    position: relative;
    background: var(--deep-green);
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: calc(var(--header-h) + 84px) 0 64px;
    overflow: hidden;
  }

  .cat-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(104deg, rgba(11, 42, 35, 0.96) 0%, rgba(11, 42, 35, 0.9) 42%, rgba(11, 42, 35, 0.58) 100%);
    z-index: 1;
  }

  .cat-hero .container {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
  }

  .cat-hero-box {
    max-width: 720px;
  }

  .cat-hero h1 {
    color: #ffffff;
    font-size: 44px;
    margin-bottom: 14px;
  }

  .cat-hero-desc {
    font-size: 17px;
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.84);
    max-width: 630px;
    margin-bottom: 30px;
  }

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

  .cat-hero-card {
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: relative;
    z-index: 2;
  }

  .mini-panel {
    background: rgba(16, 47, 40, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-lg);
    padding: 18px;
    color: white;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
  }

  .mini-panel .mp-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.62);
    margin-bottom: 10px;
  }

  .mini-panel .mp-title {
    font-size: 16px;
    font-weight: 650;
    margin-bottom: 8px;
  }

  .progress-track {
    height: 5px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    overflow: hidden;
  }

  .progress-track span {
    width: 68%;
    height: 100%;
    display: block;
    background: var(--signal-green);
  }

  .doc-wrap {
    padding: 72px 0;
    background: var(--paper);
  }

  .doc-grid {
    display: grid;
    grid-template-columns: 264px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .doc-aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    background: var(--deep-green);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 28px 22px;
  }

  .doc-aside-title {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0 6px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    margin-bottom: 14px;
  }

  .doc-aside nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 24px;
  }

  .doc-aside nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 10px;
    border-radius: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.82);
    transition: var(--transition);
  }

  .doc-aside nav a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
  }

  .doc-aside nav a .doc-nav-num {
    font-size: 12px;
    color: var(--signal-green);
    font-weight: 700;
    width: 18px;
    flex-shrink: 0;
  }

  .doc-aside-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    padding: 18px;
  }

  .doc-aside-card .ad-card-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--lime);
    margin-bottom: 8px;
  }

  .doc-aside-card .ad-card-tag::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--signal-green);
  }

  .doc-aside-card h3 {
    color: #fff;
    font-size: 17px;
    margin-bottom: 6px;
  }

  .doc-aside-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
    margin-bottom: 14px;
  }

  .doc-aside-card a {
    color: var(--signal-green);
    font-weight: 600;
    font-size: 14px;
  }

  .doc-aside-card a:hover {
    color: #fff;
  }

  .doc-main {
    min-width: 0;
  }

  .doc-block {
    background: #fff;
    border: 1px solid var(--line-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
  }

  .doc-block:last-child {
    margin-bottom: 0;
  }

  .doc-block-header {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin-bottom: 16px;
  }

  .doc-block-header .section-num {
    font-size: 14px;
    font-weight: 800;
    color: var(--signal-green);
    letter-spacing: 0.04em;
    display: inline-block;
  }

  .doc-block h2 {
    color: var(--ink);
    font-size: 28px;
  }

  .doc-lead {
    color: var(--ink-sub);
    font-size: 15px;
    margin-bottom: 24px;
  }

  .prep-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .prep-card {
    border: 1px solid var(--line-light);
    background: var(--paper);
    border-radius: var(--radius);
    padding: 22px;
    transition: var(--transition);
  }

  .prep-card:hover {
    border-color: rgba(0, 181, 120, 0.4);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
    background: #fff;
  }

  .prep-card .prep-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--deep-green);
    color: var(--signal-green);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 16px;
    margin-bottom: 14px;
  }

  .prep-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
  }

  .prep-card p {
    font-size: 14px;
    color: var(--ink-sub);
    line-height: 1.75;
  }

  .method-steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .method-row {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 16px;
    background: var(--paper);
    border: 1px solid var(--line-light);
    border-radius: var(--radius);
    padding: 18px 20px;
    transition: var(--transition);
  }

  .method-row:hover {
    background: #fff;
    border-color: rgba(0, 181, 120, 0.45);
  }

  .method-row .method-index {
    font-size: 15px;
    font-weight: 800;
    color: var(--signal-green);
    font-variant-numeric: tabular-nums;
    padding-top: 3px;
  }

  .method-row h3 {
    font-size: 16px;
    margin-bottom: 5px;
  }

  .method-row p {
    font-size: 14px;
    color: var(--ink-sub);
    line-height: 1.75;
  }

  .section-note {
    margin-top: 16px;
    background: #FFF9EF;
    border: 1px solid rgba(255, 181, 71, 0.35);
    border-radius: var(--radius);
    padding: 13px 18px;
    font-size: 14px;
    color: var(--ink-sub);
    line-height: 1.7;
  }

  .section-note strong {
    color: #9C5A00;
  }

  .nav-map {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .nav-map-card {
    border-radius: var(--radius);
    background: var(--paper);
    border: 1px solid var(--line-light);
    padding: 20px;
    transition: var(--transition);
  }

  .nav-map-card:hover {
    border-color: rgba(0, 181, 120, 0.4);
    box-shadow: var(--shadow-hover);
    background: #fff;
  }

  .nav-map-card .mini-badge {
    font-size: 12px;
    font-weight: 700;
    color: #fff;
    background: var(--deep-green);
    padding: 2px 9px;
    border-radius: 999px;
    display: inline-block;
    margin-bottom: 12px;
  }

  .nav-map-card h3 {
    font-size: 17px;
    margin-bottom: 7px;
  }

  .nav-map-card p {
    font-size: 14px;
    color: var(--ink-sub);
    line-height: 1.7;
  }

  .flow-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px 28px;
    margin-top: 16px;
  }

  .flow-step {
    display: flex;
    gap: 14px;
    padding: 18px 0;
    border-bottom: 1px solid var(--line-light);
  }

  .flow-step:last-child {
    border-bottom: 0;
  }

  .flow-num {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--deep-green);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 16px;
    font-variant-numeric: tabular-nums;
  }

  .flow-copy h3 {
    font-size: 16px;
    margin-bottom: 5px;
  }

  .flow-copy p {
    font-size: 14px;
    color: var(--ink-sub);
    line-height: 1.75;
  }

  .safety-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .safety-item {
    background: #FFFBF2;
    border: 1px solid rgba(255, 181, 71, 0.35);
    border-radius: var(--radius);
    padding: 18px 18px 16px;
  }

  .safety-item .safety-icon {
    color: #D97706;
    font-weight: 900;
    font-size: 16px;
    margin-bottom: 6px;
  }

  .safety-item p {
    font-size: 14px;
    color: var(--ink-sub);
    line-height: 1.75;
  }

  .device-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .device-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
    background: var(--paper);
    border-radius: var(--radius);
    border: 1px solid var(--line-light);
    padding: 16px 18px;
  }

  .device-row .device-type {
    font-weight: 750;
    font-size: 15px;
    color: var(--ink);
    display: flex;
    align-items: center;
  }

  .device-row .device-detail {
    font-size: 14px;
    color: var(--ink-sub);
    line-height: 1.75;
  }

  .case-band {
    background: var(--deep-green);
    color: #fff;
    padding: 60px 0;
  }

  .case-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .case-copy h2 {
    color: #ffffff;
    font-size: 28px;
    margin-bottom: 10px;
  }

  .case-copy p {
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    font-size: 15px;
  }

  .case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }

  .case-tags span {
    border: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 999px;
    padding: 10px 18px;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
  }

  .case-tags span:hover {
    border-color: var(--signal-green);
    background: rgba(0, 181, 120, 0.18);
  }

  .faq-section {
    background: var(--paper);
    padding: 72px 0;
  }

  .faq-grid {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .faq-intro .section-kicker {
    font-size: 13px;
    color: var(--paper);
    background: var(--deep-green);
    display: inline-flex;
    padding: 4px 12px;
    border-radius: 999px;
    font-weight: 700;
    margin-bottom: 12px;
  }

  .faq-intro h2 {
    font-size: 32px;
    line-height: 1.3;
    margin-bottom: 14px;
  }

  .faq-intro p {
    color: var(--ink-sub);
    font-size: 15px;
    margin-bottom: 24px;
  }

  .faq-intro-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--deep-green);
    font-weight: 650;
    font-size: 14px;
  }

  .faq-intro-link svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
  }

  .faq-intro-link:hover svg {
    transform: translateX(4px);
  }

  .faq-list details {
    background: #fff;
    border: 1px solid var(--line-light);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
  }

  .faq-list details[open] {
    border-color: rgba(0, 181, 120, 0.45);
  }

  .faq-list summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 20px;
    font-size: 15px;
    font-weight: 650;
    color: var(--ink);
    transition: var(--transition);
  }

  .faq-list summary::-webkit-details-marker {
    display: none;
  }

  .faq-list summary:hover {
    color: var(--signal-green);
    background: #FAFDFC;
  }

  .faq-list summary::after {
    content: "+";
    font-size: 24px;
    line-height: 1;
    color: var(--signal-green);
    font-weight: 500;
    flex-shrink: 0;
    transition: transform 0.2s ease;
  }

  .faq-list details[open] summary::after {
    content: "−";
    transform: rotate(180deg);
  }

  .faq-answer {
    padding: 0 20px 18px;
    color: var(--ink-sub);
    font-size: 15px;
    line-height: 1.8;
    border-top: 1px solid var(--line-light);
    margin-top: -2px;
    padding-top: 12px;
  }

  .guide-cta {
    background: var(--paper);
    padding: 24px 0 72px;
  }

  .cta-panel {
    background: var(--deep-green);
    border-radius: 20px;
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    position: relative;
    overflow: hidden;
  }

  .cta-panel::after {
    content: "";
    position: absolute;
    width: 280px;
    height: 280px;
    right: -60px;
    top: -120px;
    background: rgba(0, 181, 120, 0.22);
    transform: rotate(28deg);
    border-radius: 16px;
    pointer-events: none;
  }

  .cta-copy {
    position: relative;
    z-index: 2;
  }

  .cta-copy h2 {
    color: #fff;
    font-size: 28px;
    line-height: 1.3;
    margin-bottom: 8px;
  }

  .cta-copy p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 15px;
    line-height: 1.8;
  }

  .cta-panel .btn {
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    background: var(--signal-green);
    color: #fff;
  }

  .cta-panel .btn:hover {
    background: #00ce91;
    color: #fff;
  }

  .site-footer {
    background: var(--deep-green);
    color: #fff;
    padding: 64px 0 0;
  }

  .footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .footer-brand .brand {
    margin-bottom: 15px;
  }

  .footer-brand p {
    color: rgba(255, 255, 255, 0.62);
    font-size: 14px;
    line-height: 1.8;
    max-width: 300px;
  }

  .footer-col h3 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
  }

  .footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-col ul a {
    color: rgba(255, 255, 255, 0.66);
    font-size: 14px;
    transition: var(--transition);
  }

  .footer-col ul a:hover {
    color: var(--signal-green);
    padding-left: 2px;
  }

  .footer-bottom {
    padding: 22px 0 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    color: rgba(255, 255, 255, 0.45);
    font-size: 13px;
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
  }

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

  @media (max-width: 1100px) {
    .header-left {
      gap: 14px;
    }

    .header-search {
      display: none;
    }

    .doc-grid {
      grid-template-columns: 220px minmax(0, 1fr);
      gap: 24px;
    }
  }

  @media (max-width: 960px) {
    :root {
      --space-section: 56px;
    }

    .menu-toggle {
      display: inline-flex;
    }

    .main-menu.header-menu,
    .header-search,
    .btn-header-cta {
      display: none;
    }

    .cat-hero {
      padding: calc(var(--header-h) + 64px) 0 56px;
    }

    .cat-hero h1 {
      font-size: 36px;
    }

    .cat-hero-desc {
      font-size: 16px;
    }

    .hero-visual-wrap {
      display: none;
    }

    .cat-hero-card {
      display: none;
    }

    .doc-wrap {
      padding: 56px 0;
    }

    .doc-grid {
      grid-template-columns: 1fr;
    }

    .doc-aside {
      position: static;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      padding: 22px;
    }

    .doc-aside nav {
      margin-bottom: 0;
    }

    .doc-aside-card {
      align-self: center;
    }

    .prep-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .flow-steps {
      grid-template-columns: 1fr;
    }

    .nav-map {
      grid-template-columns: repeat(2, 1fr);
    }

    .faq-grid {
      grid-template-columns: 1fr;
    }

    .cta-panel {
      flex-direction: column;
      align-items: flex-start;
      padding: 36px;
    }
  }

  @media (max-width: 767px) {
    .container {
      padding-left: 20px;
      padding-right: 20px;
    }

    .brand-name {
      font-size: 16px;
    }

    .brand-icon {
      width: 34px;
      height: 34px;
      font-size: 17px;
    }

    .header-inner {
      gap: 10px;
    }

    .header-right {
      gap: 8px;
    }

    .cat-hero {
      padding: calc(var(--header-h) + 44px) 0 44px;
    }

    .cat-hero h1 {
      font-size: 31px;
    }

    .cat-hero-desc {
      font-size: 15px;
      margin-bottom: 22px;
    }

    .cat-hero-btns .btn {
      width: 100%;
    }

    .doc-block {
      padding: 22px 18px;
    }

    .doc-block-header h2 {
      font-size: 22px;
    }

    .doc-block-header .section-num {
      font-size: 13px;
    }

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

    .method-row {
      grid-template-columns: 44px 1fr;
      padding: 16px;
    }

    .nav-map {
      grid-template-columns: 1fr;
    }

    .safety-grid {
      grid-template-columns: 1fr;
    }

    .device-row {
      grid-template-columns: 1fr;
      gap: 6px;
    }

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

    .doc-aside {
      display: block;
    }

    .doc-aside nav {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 6px;
    }

    .doc-aside-card {
      margin-top: 18px;
    }

    .cta-panel {
      padding: 28px 22px;
    }

    .cta-copy h2 {
      font-size: 24px;
    }

    .cta-copy p {
      font-size: 14px;
    }

    .cta-panel .btn {
      width: 100%;
    }

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

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

  @media (max-width: 520px) {
    :root {
      --header-h: 56px;
    }

    h1 {
      font-size: 30px;
    }

    .doc-aside nav {
      grid-template-columns: 1fr;
    }

    .cat-hero {
      padding-top: calc(var(--header-h) + 40px);
    }

    .cat-hero h1 {
      font-size: 28px;
    }

    .cat-hero-box .hero-flag {
      font-size: 12px;
    }

    .method-row,
    .flow-step {
      grid-template-columns: 1fr;
      gap: 10px;
    }

    .flow-step {
      flex-direction: row;
    }

    .prep-card,
    .nav-map-card {
      padding: 18px;
    }

    .case-tags {
      gap: 8px;
    }

    .case-tags span {
      padding: 8px 14px;
      font-size: 13px;
    }

    .faq-grid {
      gap: 28px;
    }
  }

/* roulang page: category2 */
:root {
  --primary: #00B578;
  --primary-deep: #009A68;
  --primary-soft: rgba(0, 181, 120, .12);
  --dark: #0B2A23;
  --dark-2: #102F28;
  --ink: #16241F;
  --muted: #5D6B65;
  --weak: #8A968F;
  --paper: #F4F2EA;
  --white: #FFFFFF;
  --line: #E4E2D4;
  --lightline: #ECEADF;
  --amber: #FFB547;
  --signal: #DDFF53;
  --danger: #E5484D;
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-full: 999px;
  --shadow: 0 6px 20px rgba(8, 35, 29, .08);
  --shadow-lg: 0 18px 44px rgba(8, 35, 29, .14);
  --font: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Source Han Sans SC", sans-serif;
  --number: "Arial Narrow", "SFMono-Regular", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; object-fit: cover; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; border: none; outline: none; }

section[id], div[id] { scroll-margin-top: 110px; }

.container {
  width: min(1280px, calc(100% - 48px));
  margin-inline: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-xs);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .15s ease, box-shadow .2s ease;
}
.btn:active { transform: scale(.97); }
.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }

.btn-primary {
  background: var(--primary);
  color: #06231B;
}
.btn-primary:hover { background: #00C985; box-shadow: 0 8px 18px rgba(0, 181, 120, .26); }
.btn-primary:active { background: var(--primary-deep); }

.btn-outline {
  background: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, .58);
}
.btn-outline:hover { border-color: #FFFFFF; background: rgba(255, 255, 255, .09); }

.btn-light-outline {
  background: transparent;
  color: var(--ink);
  border-color: #C9C7B8;
}
.btn-light-outline:hover { border-color: var(--primary); color: #00724B; background: rgba(0, 181, 120, .05); }

.btn-sm { min-height: 40px; padding: 0 20px; font-size: 14px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 42, 35, .94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.header-wrapper {
  min-height: 68px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: center;
}
.brand {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #FFFFFF;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: .5px;
}
.brand:hover { opacity: .92; }
.brand-mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #06231B;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 900;
}

.main-menu { justify-self: center; }
.main-menu ul { display: flex; align-items: center; gap: 4px; }
.main-menu a {
  display: inline-flex;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, .78);
  font-weight: 600;
  font-size: 15px;
  transition: background .2s ease, color .2s ease;
}
.main-menu a:hover { color: #FFFFFF; background: rgba(255, 255, 255, .09); }
.main-menu a.active {
  color: #FFFFFF;
  background: rgba(0, 181, 120, .22);
  box-shadow: inset 0 -2px 0 var(--primary);
}

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-nav { display: none; position: relative; }
.mobile-nav-btn {
  width: 42px;
  height: 42px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 8px;
  cursor: pointer;
  list-style: none;
}
.mobile-nav-btn::-webkit-details-marker { display: none; }
.mobile-nav-btn::marker { content: ""; }
.mobile-nav-btn span { width: 18px; height: 2px; background: #FFFFFF; display: block; border-radius: 4px; }
.mobile-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: min(78vw, 320px);
  background: #0B2A23;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow-lg);
  z-index: 99;
}
.mobile-panel a { display: block; padding: 12px 10px; border-radius: 8px; color: #fff; font-weight: 600; }
.mobile-panel a:hover { background: rgba(255, 255, 255, .08); }
.mobile-panel a.active { color: var(--primary); background: rgba(0, 181, 120, .12); }
.mobile-panel .mobile-cta { border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 10px; padding-top: 14px; }
.mobile-panel .btn { width: 100%; }

.page-banner {
  position: relative;
  background:
    radial-gradient(900px 400px at 88% -10%, rgba(0, 181, 120, .35), transparent 60%),
    #0B2A23;
  color: #FFFFFF;
  padding: 76px 0 66px;
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
}
.page-banner .container { position: relative; z-index: 2; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .58);
  margin-bottom: 30px;
}
.breadcrumb a { color: rgba(255, 255, 255, .75); }
.breadcrumb a:hover { color: var(--primary); }

.banner-grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 48px;
  align-items: center;
}

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 14px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .18);
  font-size: 13px;
  letter-spacing: .3px;
  color: #E4F1EC;
  margin-bottom: 20px;
}
.banner-tag i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 181, 120, .25);
}

.page-banner h1 {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.banner-lead {
  max-width: 620px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .76);
  margin: 18px 0 30px;
}

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 32px;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: 14px;
  color: rgba(255, 255, 255, .68);
}
.banner-meta span { display: inline-flex; align-items: center; gap: 7px; }
.banner-meta strong {
  font-family: var(--number);
  font-variant-numeric: tabular-nums;
  color: #FFFFFF;
  font-weight: 700;
}

.banner-media { position: relative; }
.banner-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .26);
  background: var(--dark-2);
}
.floating-panel {
  position: absolute;
  left: 14px;
  bottom: 14px;
  max-width: 290px;
  background: rgba(11, 42, 35, .92);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 13px;
  color: #FFFFFF;
  backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.floating-panel::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex: 0 0 auto;
  margin-top: 7px;
}

.doc-section {
  padding: 76px 0;
}
.doc-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}

.doc-sidebar {
  position: sticky;
  top: 92px;
  background: #FFFFFF;
  border: 1px solid var(--lightline);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  box-shadow: 0 1px 2px rgba(8, 35, 29, .03);
}
.sidebar-label {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--weak);
  margin-bottom: 12px;
}
.sidebar-title {
  font-weight: 800;
  font-size: 19px;
  margin-bottom: 18px;
}
.toc-list li + li { margin-top: 4px; }
.toc-list a {
  display: block;
  padding: 9px 12px 9px 14px;
  border-left: 2px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  font-size: 15px;
  transition: all .2s;
}
.toc-list a:hover { color: var(--ink); background: var(--paper); border-left-color: var(--primary); }

.toc-note {
  margin-top: 22px;
  padding: 16px;
  background: var(--paper);
  border-radius: var(--radius-sm);
  border: 1px solid var(--lightline);
}
.toc-note p { font-size: 14px; color: var(--muted); line-height: 1.7; }
.toc-note strong { color: var(--ink); }

.doc-main {
  min-width: 0;
  background: #FFFFFF;
  border: 1px solid var(--lightline);
  border-radius: var(--radius-md);
  padding: clamp(22px, 4vw, 48px);
  box-shadow: 0 1px 3px rgba(8, 35, 29, .03);
}

.doc-block + .doc-block { margin-top: 52px; }
.doc-block-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.chapter-num {
  font-family: var(--number);
  font-size: 30px;
  font-weight: 800;
  color: rgba(0, 181, 120, .58);
  line-height: 1.1;
  min-width: 58px;
}
.doc-block h2 {
  font-size: clamp(23px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.doc-block-lead {
  margin-top: 8px;
  color: var(--weak);
  font-size: 15px;
}
.doc-copy { color: #3B4A44; }
.doc-copy p { margin: 15px 0; }
.doc-copy strong { color: var(--ink); }

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0 8px;
}
.info-card {
  background: var(--paper);
  border: 1px solid var(--lightline);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: border-color .2s, box-shadow .2s;
}
.info-card:hover { border-color: rgba(0, 181, 120, .5); box-shadow: var(--shadow); }
.info-card h3 {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
  margin-bottom: 8px;
}
.info-card h3 i {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--primary);
  flex: 0 0 auto;
}
.info-card p, .info-card li { font-size: 15px; color: var(--muted); line-height: 1.8; }
.info-card ul { margin-top: 6px; }
.info-card li { position: relative; padding-left: 14px; }
.info-card li::before { content: ""; position: absolute; left: 0; top: 13px; width: 5px; height: 5px; background: var(--amber); border-radius: 50%; }

.step-list {
  counter-reset: stepList;
  display: grid;
  gap: 12px;
  margin: 24px 0 6px;
}
.step-list li {
  counter-increment: stepList;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--paper);
  border: 1px solid var(--lightline);
  border-radius: var(--radius-sm);
  padding: 17px 18px;
  transition: border-color .2s;
}
.step-list li:hover { border-color: rgba(0, 181, 120, .55); }
.step-list li::before {
  content: counter(stepList, decimal-leading-zero);
  font-family: var(--number);
  font-size: 24px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--primary);
  line-height: 1.1;
  min-width: 36px;
}
.step-list strong { display: block; font-size: 15.5px; }
.step-list p { color: var(--muted); font-size: 14.5px; margin-top: 3px; line-height: 1.7; }

.doc-figure {
  margin: 26px 0 14px;
  background: var(--paper);
  border: 1px solid var(--lightline);
  padding: 10px;
  border-radius: var(--radius-sm);
}
.doc-figure img { border-radius: 6px; background: var(--lightline); }
.doc-figure figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--weak);
  padding: 10px 6px 4px;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 22px 0 4px;
}
.role-card {
  border: 1px solid var(--lightline);
  border-radius: var(--radius-sm);
  padding: 18px;
  background: #fff;
  transition: .2s;
}
.role-card:hover { border-color: rgba(0, 181, 120, .5); box-shadow: var(--shadow); }
.role-card h3 { font-size: 16px; margin-bottom: 8px; position: relative; padding-left: 16px; }
.role-card h3::before { content: ""; position: absolute; left: 0; top: 5px; width: 7px; height: 7px; background: var(--primary); border-radius: 2px; }
.role-card p { font-size: 14.5px; color: var(--muted); line-height: 1.75; }

.safe-list {
  display: grid;
  gap: 12px;
  margin: 20px 0 6px;
}
.safe-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: #F7F6EF;
  border: 1px solid var(--lightline);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.safe-list li span {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(0, 181, 120, .14);
  color: #007051;
  font-size: 14px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.safe-list strong { display: block; font-size: 15.5px; }
.safe-list p { color: var(--muted); font-size: 14.5px; line-height: 1.7; }

.table-wrap {
  overflow-x: auto;
  margin: 20px 0 6px;
  border: 1px solid var(--lightline);
  border-radius: var(--radius-sm);
}
.trouble-table { width: 100%; border-collapse: collapse; min-width: 520px; }
.trouble-table th {
  background: var(--dark);
  color: #FFFFFF;
  text-align: left;
  padding: 14px 16px;
  font-weight: 700;
  font-size: 14px;
}
.trouble-table td {
  padding: 14px 16px;
  border-top: 1px solid var(--lightline);
  font-size: 14.5px;
  color: #3E4B46;
  vertical-align: top;
}
.trouble-table tr:nth-child(even) td { background: rgba(244, 242, 234, .55); }
.trouble-table td:last-child { color: var(--muted); }

.cta-section { padding: 0 0 76px; }
.cta-panel {
  position: relative;
  overflow: hidden;
  background: var(--dark);
  color: #FFFFFF;
  border-radius: 16px;
  padding: 56px 60px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  align-items: center;
  gap: 40px;
}
.cta-panel::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -90px;
  width: 320px;
  height: 220px;
  background: rgba(0, 181, 120, .35);
  filter: blur(70px);
  border-radius: 50%;
}
.cta-copy { position: relative; z-index: 2; }
.cta-copy p { color: rgba(255, 255, 255, .72); margin: 14px 0 24px; max-width: 500px; }
.cta-copy h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 800; line-height: 1.25; }
.cta-actions { position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 12px; }
.cta-note { font-size: 13px; color: rgba(255, 255, 255, .5); margin-top: 16px; max-width: 380px; }

.faq-section {
  padding: 0 0 76px;
}
.faq-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}
.faq-head h2 { font-size: clamp(25px, 3vw, 34px); font-weight: 800; }
.faq-head p { color: var(--weak); margin-top: 6px; }
.faq-link { flex: none; }
.faq-wrap {
  background: #FFFFFF;
  border: 1px solid var(--lightline);
  border-radius: var(--radius-md);
  padding: 8px 26px;
}
.faq-item { border-bottom: 1px solid var(--lightline); }
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
  padding: 20px 2px;
  cursor: pointer;
  list-style: none;
  transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { content: ""; }
.faq-item summary:hover { color: #007A4C; }
.faq-item summary::after {
  content: "+";
  font-size: 27px;
  font-weight: 400;
  line-height: 1;
  color: var(--primary);
  transition: transform .2s;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p {
  padding: 0 42px 24px 2px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .75);
  padding: 60px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 38px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { max-width: 330px; font-size: 14px; line-height: 1.9; color: rgba(255, 255, 255, .58); margin-top: 12px; }
.footer-col h3 { color: #FFFFFF; font-size: 15px; margin-bottom: 14px; }
.footer-col ul li { line-height: 1; }
.footer-col a {
  display: inline-block;
  padding: 7px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .62);
  transition: color .2s, transform .2s;
}
.footer-col a:hover { color: var(--primary); transform: translateX(2px); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
}
.footer-bottom a { color: rgba(255, 255, 255, .62); transition: .2s; }
.footer-bottom a:hover { color: #FFFFFF; }

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

@media (max-width: 1023.98px) {
  .main-menu { display: none; }
  .header-wrapper { grid-template-columns: 1fr auto; }
  .mobile-nav { display: block; }
  .banner-grid { grid-template-columns: 1fr; gap: 32px; }
  .banner-media { max-width: 540px; }
  .doc-layout { grid-template-columns: 1fr; }
  .doc-sidebar { position: static; top: auto; order: 2; }
  .cta-panel { grid-template-columns: 1fr; padding: 40px 34px; }
  .footer-top { grid-template-columns: 1fr 1fr; row-gap: 32px; }
}

@media (max-width: 767.98px) {
  .container { width: min(100% - 32px, 1280px); }
  .header-wrapper { min-height: 56px; }
  .site-header { position: sticky; }
  .brand { font-size: 18px; }
  .brand-mark { width: 28px; height: 28px; font-size: 15px; border-radius: 6px; }
  .header-cta { display: none; }
  .page-banner { padding: 52px 0 46px; }
  .page-banner h1 { font-size: 32px; }
  .banner-lead { font-size: 15px; }
  .btn-row .btn { width: 100%; }
  .banner-meta { gap: 12px 18px; }
  .doc-section { padding: 52px 0; }
  .doc-main { padding: 22px 18px; }
  .info-grid, .role-grid { grid-template-columns: 1fr; }
  .step-list li { flex-direction: column; gap: 8px; }
  .cta-section { padding-bottom: 52px; }
  .cta-panel { padding: 32px 22px; }
  .cta-actions .btn { width: 100%; }
  .faq-section { padding-bottom: 52px; }
  .faq-head { flex-direction: column; align-items: flex-start; }
  .faq-wrap { padding: 6px 16px; }
  .faq-item summary { font-size: 15.5px; }
  .faq-item p { padding-right: 0; }
  .footer-top { grid-template-columns: 1fr; gap: 26px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 519.98px) {
  .mobile-panel { width: calc(100vw - 32px); }
  .chapter-num { font-size: 24px; min-width: 42px; }
  .banner-media img { aspect-ratio: 5 / 4; }
}