/* roulang page: index */
:root {
      --ink: #172438;
      --muted: #66758a;
      --blue: #1768d4;
      --blue-dark: #1153ae;
      --blue-soft: #e9f2ff;
      --mint: #dff4ec;
      --orange: #f4a261;
      --paper: #fff;
      --canvas: #f4f7fb;
      --line: #e2e9f1;
      --radius: 8px;
      --shadow: 0 12px 30px rgba(24, 52, 86, .08);
      --container: 1180px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--canvas);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.7;
    }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    button, input { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #f4a261; outline-offset: 3px; }
    .container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
    .site-header {
      position: sticky; top: 0; z-index: 20;
      background: rgba(255,255,255,.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }
    .nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; font-size: 20px; font-weight: 800; }
    .brand-mark {
      width: 40px; height: 40px; display: grid; place-items: center;
      border-radius: 8px; background: var(--blue); color: white; font-size: 13px; line-height: 1.1; text-align: center;
    }
    .nav-links { display: flex; align-items: center; gap: 26px; }
    .nav-links a { color: #526177; font-size: 14px; font-weight: 650; transition: color .18s ease; }
    .nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--blue); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border: 1px solid transparent; border-radius: 6px;
      background: var(--blue); color: white; font-weight: 700; transition: background .18s ease, box-shadow .18s ease, transform .18s ease;
    }
    .nav-cta { min-height: 40px; padding: 0 15px; font-size: 14px; }
    .nav-cta:hover, .button:hover { background: var(--blue-dark); box-shadow: 0 6px 16px rgba(23,104,212,.2); }
    .button:active, .nav-cta:active { transform: translateY(1px); }
    .button-secondary { color: var(--ink); background: white; border-color: var(--line); }
    .button-secondary:hover { background: #f7faff; color: var(--blue); border-color: #bfd6f5; box-shadow: none; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: white; border-radius: 6px; color: var(--ink); cursor: pointer; }
    .hero {
      position: relative; overflow: hidden; min-height: 510px;
      display: flex; align-items: flex-end; padding: 66px 0 58px;
      color: white; background: #173c67;
      isolation: isolate;
    }
    .hero::before {
      content: ""; position: absolute; inset: 0; z-index: -2;
      background:
        linear-gradient(90deg, rgba(13,35,62,.92) 0%, rgba(13,35,62,.74) 47%, rgba(13,35,62,.18) 100%),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 800'%3E%3Crect width='1600' height='800' fill='%231c4d7b'/%3E%3Cpath d='M0 650 Q300 350 560 560 T1100 360 T1600 250 V800 H0Z' fill='%233b7892'/%3E%3Cpath d='M0 710 Q390 470 740 620 T1600 420 V800 H0Z' fill='%232b6582'/%3E%3Crect x='1030' y='110' width='240' height='450' rx='18' fill='%23d8e9ee' opacity='.18'/%3E%3Crect x='1060' y='145' width='180' height='320' rx='10' fill='%23f2b57e' opacity='.78'/%3E%3Ccircle cx='1150' cy='530' r='9' fill='%23fff' opacity='.8'/%3E%3Cpath d='M980 600h400' stroke='%23fff' stroke-opacity='.22' stroke-width='3'/%3E%3C/svg%3E");
      background-size: cover; background-position: center;
    }
    .hero::after { content: ""; position: absolute; inset: auto 0 0; z-index: -1; height: 100px; background: linear-gradient(transparent, rgba(10,29,48,.26)); }
    .hero-content { max-width: 720px; }
    .hero-kicker { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 15px; color: #d7e8f9; font-size: 13px; font-weight: 700; }
    .hero-kicker::before { content: ""; width: 20px; height: 2px; background: #f4a261; }
    h1 { max-width: 700px; margin: 0; font-size: 48px; line-height: 1.2; font-weight: 800; }
    h1 span { color: #a9d3ff; }
    .hero-subtitle { margin: 15px 0 10px; font-size: 20px; font-weight: 650; color: #fff; }
    .hero-copy { max-width: 680px; margin: 0; color: #e0e9f2; line-height: 1.9; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 25px; }
    .hero .button-secondary { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.36); color: white; }
    .hero .button-secondary:hover { background: rgba(255,255,255,.2); }
    .hero-note { margin: 18px 0 0; color: #c4d5e5; font-size: 13px; }
    main { overflow: hidden; }
    section { padding: 68px 0; }
    .section-white { background: var(--paper); }
    .section-tint { background: #edf3f9; }
    .section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 28px; }
    .section-heading > div { max-width: 720px; }
    .eyebrow { margin: 0 0 6px; color: var(--blue); font-size: 12px; font-weight: 800; text-transform: uppercase; }
    h2 { margin: 0; font-size: 29px; line-height: 1.35; font-weight: 800; }
    .section-intro { margin: 9px 0 0; max-width: 780px; color: var(--muted); }
    .text-link { color: var(--blue); font-weight: 700; white-space: nowrap; }
    .text-link:hover { color: var(--blue-dark); text-decoration: underline; }
    .category-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
    .category-item {
      min-height: 143px; padding: 20px; background: white; border: 1px solid var(--line);
      border-radius: var(--radius); box-shadow: 0 5px 16px rgba(24,52,86,.04);
      transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
    }
    .category-item:hover { border-color: #b7d0ee; box-shadow: var(--shadow); transform: translateY(-2px); }
    .category-num { display: block; color: #8da1b9; font-size: 12px; font-weight: 800; }
    .category-item h3 { margin: 10px 0 5px; font-size: 18px; }
    .category-item p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
    .split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: center; }
    .issue-list { display: grid; gap: 11px; }
    .issue-row { display: flex; gap: 14px; padding: 16px 18px; background: white; border: 1px solid var(--line); border-radius: 6px; }
    .issue-mark { flex: 0 0 26px; height: 26px; display: grid; place-items: center; border-radius: 50%; background: #fff1e6; color: #c86a26; font-size: 14px; font-weight: 800; }
    .issue-row p { margin: 0; color: #42516a; }
    .solution-band { display: grid; grid-template-columns: 1.15fr .85fr; gap: 42px; align-items: center; }
    .solution-visual { min-height: 245px; position: relative; overflow: hidden; padding: 28px; color: white; background: #214d78; border-radius: 8px; }
    .solution-visual::after { content: ""; position: absolute; width: 210px; height: 210px; right: -50px; bottom: -90px; border: 28px solid rgba(255,255,255,.14); border-radius: 50%; }
    .solution-visual .big-label { display: block; margin-top: 22px; font-size: 26px; font-weight: 800; }
    .solution-visual p { max-width: 340px; margin: 7px 0; color: #d8e7f5; }
    .solution-points { display: grid; gap: 18px; }
    .solution-point { padding-bottom: 17px; border-bottom: 1px solid var(--line); }
    .solution-point:last-child { border: 0; }
    .solution-point h3 { margin: 0 0 4px; font-size: 17px; }
    .solution-point p { margin: 0; color: var(--muted); font-size: 14px; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
    .step { padding: 0 18px 4px 0; border-right: 1px solid var(--line); counter-increment: step; }
    .step:last-child { border: 0; }
    .step::before { content: "0" counter(step); color: var(--blue); font-size: 13px; font-weight: 800; }
    .step h3 { margin: 8px 0 5px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .metric { padding: 22px 20px; border-right: 1px solid var(--line); }
    .metric:last-child { border: 0; }
    .metric strong { display: block; color: var(--blue); font-size: 28px; line-height: 1.3; }
    .metric span { color: var(--muted); font-size: 13px; }
    .quote-line { display: grid; grid-template-columns: 140px 1fr; gap: 24px; align-items: center; padding: 27px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .quote-label { color: var(--blue); font-weight: 800; }
    .quote-line blockquote { margin: 0; color: #394a60; font-size: 18px; }
    .quote-line cite { display: block; margin-top: 8px; color: var(--muted); font-size: 13px; font-style: normal; }
    .scenario-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: start; }
    .scenario-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
    .scenario { padding: 16px 0; border-top: 1px solid #d7e1eb; }
    .scenario h3 { margin: 0 0 5px; font-size: 16px; }
    .scenario p { margin: 0; color: var(--muted); font-size: 14px; }
    .media-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .media-card { overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 7px; transition: box-shadow .18s ease, border-color .18s ease; }
    .media-card:hover { border-color: #c2d6ed; box-shadow: var(--shadow); }
    .cover { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #dce8f2; }
    .cover-art { position: absolute; inset: 0; display: flex; align-items: flex-end; padding: 16px; color: white; background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg, #6d9cb4, #d9b795); }
    .cover-art::before { content: ""; position: absolute; inset: 15% 25% 12%; border-radius: 48% 48% 8px 8px; background: rgba(255,255,255,.19); border: 1px solid rgba(255,255,255,.35); }
    .cover-art strong { position: relative; z-index: 1; font-size: 14px; }
    .cover.c2 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#9d9b78,#bb775e); }
    .cover.c3 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#528b86,#a6c1a0); }
    .cover.c4 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#7588aa,#c6a5a1); }
    .cover.c5 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#cf966d,#765d61); }
    .cover.c6 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#5680a1,#bac5b4); }
    .cover.c7 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#9a8d6f,#b67974); }
    .cover.c8 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#628d9f,#d0b180); }
    .cover.c9 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#8d8299,#c7a67d); }
    .cover.c10 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#4f8b78,#c3b690); }
    .cover.c11 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#75859d,#b97460); }
    .cover.c12 .cover-art { background: linear-gradient(0deg, rgba(14,37,58,.76), transparent 70%), linear-gradient(135deg,#6799a0,#c5a486); }
    .badge { position: absolute; top: 10px; left: 10px; z-index: 2; padding: 3px 8px; color: #174b7c; background: rgba(255,255,255,.94); border-radius: 4px; font-size: 11px; font-weight: 800; }
    .media-info { padding: 14px 15px 16px; }
    .media-info h3 { overflow: hidden; margin: 0; font-size: 16px; text-overflow: ellipsis; white-space: nowrap; }
    .media-meta { display: flex; justify-content: space-between; gap: 8px; margin-top: 7px; color: var(--muted); font-size: 12px; }
    .rating { color: #b76a24; font-weight: 800; }
    .recommend-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .recommend { display: grid; grid-template-columns: 112px 1fr; min-height: 124px; overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 7px; }
    .recommend .cover { aspect-ratio: auto; min-height: 124px; }
    .recommend .cover-art { padding: 10px; }
    .recommend .cover-art strong { font-size: 12px; }
    .recommend-copy { padding: 15px; }
    .recommend-copy h3 { margin: 0 0 5px; font-size: 16px; }
    .recommend-copy p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
    .channel-list { display: grid; grid-template-columns: 1fr 1fr; }
    .channel-row { display: grid; grid-template-columns: 54px 1fr 24px; gap: 16px; align-items: center; padding: 20px 12px; border-top: 1px solid var(--line); }
    .channel-row:nth-child(odd) { margin-right: 20px; }
    .channel-number { color: #89a1bb; font-size: 13px; font-weight: 800; }
    .channel-row h3 { margin: 0 0 3px; font-size: 17px; }
    .channel-row p { margin: 0; color: var(--muted); font-size: 13px; }
    .channel-arrow { color: var(--blue); font-size: 20px; }
    .ranking-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; }
    .rank-list { margin: 0; padding: 0; list-style: none; }
    .rank-list li { display: grid; grid-template-columns: 34px 1fr auto auto; gap: 14px; align-items: center; min-height: 55px; border-bottom: 1px solid var(--line); }
    .rank-no { color: #8da1b9; font-size: 14px; font-weight: 800; }
    .rank-list li:nth-child(-n+3) .rank-no { color: var(--orange); }
    .rank-title { font-weight: 700; }
    .rank-tag { padding: 2px 7px; border-radius: 4px; color: #41617d; background: #edf3f8; font-size: 11px; }
    .rank-score { color: var(--muted); font-size: 12px; }
    .feature-panel { padding: 26px; background: #e6f1fa; border-left: 4px solid var(--blue); }
    .feature-panel .eyebrow { margin-bottom: 10px; }
    .feature-panel h3 { margin: 0 0 10px; font-size: 22px; }
    .feature-panel p { margin: 0; color: #53647a; }
    .feature-meta { display: flex; gap: 8px; margin-top: 17px; }
    .feature-meta span { padding: 4px 9px; background: white; border-radius: 4px; color: #49617a; font-size: 12px; }
    .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 26px; }
    .news-item { display: grid; grid-template-columns: 82px 1fr; gap: 14px; align-items: center; padding: 16px 0; border-top: 1px solid var(--line); }
    .news-thumb { height: 62px; border-radius: 5px; background: linear-gradient(135deg,#b6d2e5,#e6c8a8); }
    .news-item:nth-child(2n) .news-thumb { background: linear-gradient(135deg,#92b5ab,#d1d9c1); }
    .news-item h3 { margin: 0; font-size: 14px; line-height: 1.5; }
    .news-item time { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; }
    .timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
    .timeline-item { position: relative; padding-top: 22px; border-top: 2px solid #cbd9e7; }
    .timeline-item::before { content: ""; position: absolute; top: -6px; left: 0; width: 10px; height: 10px; background: var(--blue); border: 2px solid white; border-radius: 50%; box-shadow: 0 0 0 1px var(--blue); }
    .timeline-item time { color: var(--blue); font-size: 12px; font-weight: 800; }
    .timeline-item h3 { margin: 7px 0 4px; font-size: 16px; }
    .timeline-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-list details { padding: 17px 0; border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding-right: 36px; cursor: pointer; list-style: none; font-weight: 750; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 5px; top: -2px; color: var(--blue); font-size: 22px; font-weight: 400; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 850px; margin: 10px 0 2px; color: var(--muted); }
    .cta-band { padding: 42px 46px; display: flex; align-items: center; justify-content: space-between; gap: 28px; color: white; background: #194c79; border-radius: 8px; }
    .cta-band h2 { max-width: 650px; }
    .cta-band p { margin: 8px 0 0; color: #d4e3f0; }
    .cta-band .button { flex: 0 0 auto; background: white; color: var(--blue-dark); }
    .cta-band .button:hover { background: #eaf3ff; }
    .site-footer { padding: 52px 0 22px; background: #172b40; color: #dce6ef; }
    .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
    .footer-brand p { max-width: 290px; color: #aebdcb; font-size: 13px; }
    .footer-title { margin: 0 0 13px; color: white; font-size: 14px; }
    .footer-links { display: grid; gap: 8px; }
    .footer-links a { color: #b8c7d5; font-size: 13px; }
    .footer-links a:hover { color: white; }
    .copyright { margin-top: 34px; padding-top: 17px; border-top: 1px solid rgba(255,255,255,.14); color: #9fb0bf; font-size: 12px; }
    @media (max-width: 1024px) {
      .container { width: min(var(--container), calc(100% - 36px)); }
      .nav-links { gap: 16px; }
      .category-grid { grid-template-columns: repeat(3, 1fr); }
      .media-grid { grid-template-columns: repeat(3, 1fr); }
      .recommend-grid { grid-template-columns: repeat(2, 1fr); }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .split { gap: 36px; }
    }
    @media (max-width: 768px) {
      .nav-wrap { min-height: 68px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-cta { display: none; }
      .nav-links {
        display: none; position: absolute; top: 67px; left: 0; right: 0; padding: 10px 24px 18px;
        background: white; border-bottom: 1px solid var(--line); box-shadow: 0 12px 18px rgba(24,52,86,.08);
      }
      .nav-links.is-open { display: grid; gap: 0; }
      .nav-links a { padding: 11px 0; border-bottom: 1px solid #eef2f6; }
      .hero { min-height: 470px; padding: 55px 0 48px; }
      h1 { font-size: 40px; }
      section { padding: 54px 0; }
      .split, .solution-band, .scenario-layout, .ranking-layout { grid-template-columns: 1fr; gap: 28px; }
      .steps { grid-template-columns: repeat(2, 1fr); row-gap: 24px; }
      .step:nth-child(2) { border-right: 0; }
      .metric-strip { grid-template-columns: repeat(2, 1fr); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .timeline { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 520px) {
      .container { width: calc(100% - 32px); }
      .brand { font-size: 18px; }
      .hero { min-height: 470px; padding: 48px 0 40px; }
      h1 { font-size: 34px; }
      .hero-subtitle { font-size: 18px; }
      .hero-copy { font-size: 14px; }
      .hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
      .hero-actions .button { padding: 0 10px; font-size: 13px; }
      section { padding: 46px 0; }
      .section-heading { align-items: start; flex-direction: column; gap: 12px; margin-bottom: 22px; }
      h2 { font-size: 25px; }
      .category-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
      .category-item { min-height: 138px; padding: 15px; }
      .media-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
      .media-info { padding: 11px; }
      .media-info h3 { font-size: 14px; }
      .media-meta { font-size: 11px; }
      .recommend-grid, .news-grid { grid-template-columns: 1fr; }
      .recommend { grid-template-columns: 98px 1fr; }
      .channel-list { grid-template-columns: 1fr; }
      .channel-row:nth-child(odd) { margin-right: 0; }
      .scenario-list { grid-template-columns: 1fr; }
      .quote-line { grid-template-columns: 1fr; gap: 8px; }
      .quote-line blockquote { font-size: 16px; }
      .rank-list li { grid-template-columns: 28px 1fr auto; gap: 9px; }
      .rank-score { display: none; }
      .timeline { grid-template-columns: 1fr 1fr; gap: 18px 14px; }
      .cta-band { align-items: flex-start; flex-direction: column; padding: 28px 22px; }
      .cta-band h2 { font-size: 23px; }
      .footer-grid { gap: 26px 18px; }
      .footer-brand { grid-column: 1 / -1; }
    }

/* roulang page: category1 */
:root{--ink:#172438;--muted:#66758a;--blue:#1768d4;--blue-dark:#1153ae;--blue-soft:#e9f2ff;--mint:#dff4ec;--orange:#f4a261;--paper:#fff;--canvas:#f4f7fb;--line:#e2e9f1;--radius:8px;--shadow:0 12px 30px rgba(24,52,86,.08);--container:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;font-size:20px;font-weight:800}.brand-mark{width:40px;height:40px;display:grid;place-items:center;border-radius:8px;background:var(--blue);color:#fff;font-size:13px;line-height:1.1;text-align:center}.nav-links{display:flex;align-items:center;gap:26px}.nav-links a{color:#526177;font-size:14px;font-weight:650;transition:color .18s}.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--blue)}.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:6px;color:var(--ink);cursor:pointer}
main{overflow:hidden}section{padding:68px 0}.section-white{background:var(--paper)}.section-tint{background:#edf3f9}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}.section-heading>div{max-width:760px}.eyebrow{margin:0 0 6px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}.section-heading h2{margin:0;font-size:30px;line-height:1.3}.section-intro{margin:9px 0 0;max-width:780px;color:var(--muted)}.text-link{color:var(--blue);font-weight:700;white-space:nowrap}.text-link:hover{color:var(--blue-dark);text-decoration:underline}
.page-intro{padding:58px 0 48px;background:#fff;border-bottom:1px solid var(--line)}.intro-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:70px;align-items:end}.page-intro h1{margin:0;font-size:clamp(34px,5vw,56px);line-height:1.16;letter-spacing:0}.page-intro h1 span{color:var(--blue)}.page-intro p{max-width:700px;margin:20px 0 0;color:var(--muted);font-size:17px}.intro-panel{padding:22px;background:#f4f8fd;border:1px solid #dbe8f5;border-left:4px solid var(--blue);border-radius:var(--radius)}.intro-panel strong{display:block;font-size:25px;color:var(--blue)}.intro-panel small{color:var(--muted)}
.scope{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}.scope h2{margin:0 0 14px;font-size:30px}.scope p{margin:0;color:var(--muted)}.scope-list{display:grid;gap:12px}.scope-list div{display:flex;gap:13px;padding:15px 16px;background:#fff;border:1px solid var(--line);border-radius:6px}.scope-list b{color:var(--blue);font-size:13px}.scope-list span{font-weight:650}
.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 5px 18px rgba(24,52,86,.04)}.filter-label{font-weight:750}.filter-options{display:flex;gap:8px;flex-wrap:wrap}.filter-options button{border:1px solid var(--line);background:#fff;color:var(--muted);padding:8px 14px;border-radius:5px;cursor:pointer;transition:.18s}.filter-options button:hover,.filter-options button.active{border-color:var(--blue);background:var(--blue-soft);color:var(--blue)}
.story-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.story-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:7px;transition:box-shadow .18s,transform .18s,border-color .18s}.story-card:hover{transform:translateY(-3px);border-color:#b8d1ee;box-shadow:var(--shadow)}.cover{height:178px;position:relative;display:flex;align-items:flex-end;padding:15px;color:#fff;overflow:hidden;background:linear-gradient(135deg,#245b8d,#6da3b1)}.cover:before{content:"";position:absolute;width:150px;height:150px;border-radius:50%;right:-28px;top:-35px;background:rgba(255,255,255,.2)}.cover:after{content:"";position:absolute;inset:45% 0 0;background:linear-gradient(transparent,rgba(9,28,48,.65))}.cover.orange{background:linear-gradient(135deg,#b76749,#f0b47c)}.cover.mint{background:linear-gradient(135deg,#397d78,#a6d7c1)}.cover.purple{background:linear-gradient(135deg,#4b547f,#b28baa)}.cover b{position:relative;z-index:1;font-size:18px}.story-body{padding:16px}.story-body h3{margin:0 0 8px;font-size:18px;line-height:1.45}.story-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--muted);font-size:13px}.badge{display:inline-flex;padding:3px 8px;border-radius:4px;background:var(--blue-soft);color:var(--blue);font-weight:700}.rating{color:#c67a2e;font-weight:750}
.more-row{text-align:center;padding-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 19px;border:1px solid transparent;border-radius:6px;background:var(--blue);color:#fff;font-weight:700;transition:.18s}.button:hover{background:var(--blue-dark);box-shadow:0 6px 16px rgba(23,104,212,.2)}.button-secondary{color:var(--ink);background:#fff;border-color:var(--line)}.button-secondary:hover{background:#f7faff;color:var(--blue);border-color:#bfd6f5;box-shadow:none}
.featured{display:grid;grid-template-columns:1.25fr .75fr;gap:26px}.feature-main{min-height:270px;padding:30px;color:#fff;border-radius:var(--radius);background:linear-gradient(120deg,#173c67,#357da0);position:relative;overflow:hidden}.feature-main:after{content:"糖心APP";position:absolute;right:25px;bottom:-18px;font-size:70px;font-weight:900;color:rgba(255,255,255,.08)}.feature-main h2{max-width:460px;margin:10px 0;font-size:30px;line-height:1.35}.feature-main p{max-width:500px;color:#dceaf5}.feature-side{display:grid;gap:14px}.feature-note{padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.feature-note b{display:block;margin-bottom:5px}.feature-note p{margin:0;color:var(--muted);font-size:14px}
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}.news-item{display:flex;gap:15px;padding:18px 0;border-bottom:1px solid var(--line)}.news-thumb{width:92px;height:64px;flex:0 0 92px;border-radius:5px;background:linear-gradient(135deg,#9ebbd4,#e7b28d)}.news-item h3{margin:0;font-size:16px;line-height:1.4}.news-item time{display:block;margin-top:5px;color:var(--muted);font-size:12px}
.faq{background:#fff}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:18px}summary:after{content:"+";color:var(--blue);font-size:22px;line-height:1}details[open] summary:after{content:"−"}details p{margin:10px 28px 0 0;color:var(--muted)}
.site-footer{padding:52px 0 22px;background:#172438;color:#d9e5f1}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer-brand .brand{color:#fff}.footer-brand p{max-width:280px;color:#aebfd0;font-size:14px}.footer-title{margin:5px 0 13px;color:#fff;font-size:15px}.footer-links{display:grid;gap:8px}.footer-links a{color:#aebfd0;font-size:14px}.footer-links a:hover{color:#fff}.copyright{margin-top:38px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);color:#91a5ba;font-size:13px}
@media(max-width:1024px){.story-grid{grid-template-columns:repeat(3,1fr)}.intro-layout{gap:35px}.featured{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.nav-wrap{min-height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;padding:12px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:6px;align-items:stretch;flex-direction:column;gap:0}.nav-links.open{display:flex}.nav-links a{padding:12px 14px;border-bottom:1px solid #eef2f6}.nav-links a:last-child{border:0}.page-intro{padding:42px 0}.intro-layout,.scope,.featured{grid-template-columns:1fr}.intro-panel{max-width:330px}.story-grid{grid-template-columns:repeat(2,1fr)}.news-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.section-heading{display:block}.section-heading .text-link{display:inline-block;margin-top:14px}}
@media(max-width:520px){section{padding:48px 0}.page-intro h1{font-size:36px}.story-grid{grid-template-columns:1fr}.cover{height:205px}.filter-bar{display:block}.filter-label{margin-bottom:10px}.scope h2,.section-heading h2{font-size:25px}.footer-grid{grid-template-columns:1fr;gap:22px}.copyright{margin-top:28px}}