/* roulang page: index */
:root {
      --ink: #10172a;
      --navy: #131d38;
      --navy-2: #1c2a4d;
      --purple: #7257f2;
      --violet: #a68cff;
      --cyan: #55d6c2;
      --orange: #ffb35c;
      --paper: #f6f7fb;
      --white: #ffffff;
      --muted: #6e7890;
      --line: #e4e7f0;
      --soft-purple: #eeebff;
      --radius-lg: 26px;
      --radius-md: 16px;
      --shadow: 0 18px 46px rgba(30, 42, 76, .10);
      --shadow-deep: 0 24px 70px rgba(12, 21, 48, .22);
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      letter-spacing: 0;
    }
    a { color: inherit; text-decoration: none; transition: color .25s ease, transform .25s ease, background .25s ease, border-color .25s ease; }
    img { display: block; max-width: 100%; }
    button, input, select, textarea { font: inherit; }
    button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(85, 214, 194, .55); outline-offset: 3px; }
    .container { max-width: 1180px; }
    .section { padding: 96px 0; position: relative; }
    .section-soft { background: #fff; }
    .section-dark { color: #fff; background: var(--navy); }
    .section-head { max-width: 720px; margin-bottom: 42px; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 13px;
      border: 1px solid rgba(114, 87, 242, .22);
      border-radius: 999px;
      color: var(--purple);
      background: var(--soft-purple);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .08em;
    }
    .section-dark .eyebrow { color: var(--cyan); border-color: rgba(85, 214, 194, .28); background: rgba(85, 214, 194, .10); }
    h1, h2, h3, h4 { margin: 0; color: inherit; font-weight: 800; line-height: 1.22; }
    h1 { font-size: clamp(2.5rem, 5vw, 4.8rem); letter-spacing: 0; }
    h2 { font-size: clamp(2rem, 3.2vw, 3rem); }
    h3 { font-size: 1.3rem; }
    .section-head h2 { margin-top: 16px; }
    .section-head p { color: var(--muted); margin: 16px 0 0; }
    .section-dark .section-head p { color: #b8c2d9; }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255,255,255,.92);
      border-bottom: 1px solid rgba(228,231,240,.88);
      backdrop-filter: blur(18px);
    }
    .navbar { min-height: 78px; }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--ink);
      font-size: 1.35rem;
      font-weight: 900;
      letter-spacing: .01em;
    }
    .brand-mark {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      color: #fff;
      border-radius: 12px;
      background: linear-gradient(145deg, var(--purple), var(--navy-2));
      box-shadow: 0 8px 18px rgba(114,87,242,.25);
    }
    .nav-grid { display: flex; align-items: center; gap: 8px; }
    .nav-link {
      display: flex;
      align-items: center;
      gap: 7px;
      padding: 9px 13px !important;
      border-radius: 12px;
      color: #667089 !important;
      font-size: .92rem;
      font-weight: 700;
    }
    .nav-link:hover, .nav-link.active { color: var(--purple) !important; background: var(--soft-purple); }
    .nav-action {
      margin-left: 10px;
      padding: 11px 18px;
      border-radius: 12px;
      color: #fff;
      background: var(--ink);
      font-size: .88rem;
      font-weight: 800;
    }
    .nav-action:hover { color: #fff; background: var(--purple); transform: translateY(-2px); }
    .navbar-toggler { border: 0; box-shadow: none !important; }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 84px 0 70px;
      color: #fff;
      background:
        linear-gradient(100deg, rgba(14,22,47,.97) 0%, rgba(22,33,68,.92) 55%, rgba(39,33,80,.86) 100%),
        url("https://images.unsplash.com/photo-1550745165-9bc0b252726f?auto=format&fit=crop&w=1800&q=85") center/cover;
    }
    .hero::after {
      content: "";
      position: absolute;
      width: 420px;
      height: 420px;
      right: -160px;
      bottom: -230px;
      border: 1px solid rgba(166,140,255,.25);
      border-radius: 50%;
      box-shadow: 0 0 0 42px rgba(166,140,255,.04), 0 0 0 84px rgba(166,140,255,.03);
    }
    .hero-copy { position: relative; z-index: 1; max-width: 640px; }
    .hero .eyebrow { color: var(--cyan); background: rgba(85,214,194,.1); border-color: rgba(85,214,194,.28); }
    .hero h1 { margin: 18px 0 22px; }
    .hero p { max-width: 620px; color: #cbd2e2; font-size: 1.08rem; }
    .hero-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
    .btn-main, .btn-lightline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 12px 20px;
      border-radius: 13px;
      font-weight: 800;
      border: 1px solid transparent;
    }
    .btn-main { color: var(--navy); background: var(--cyan); box-shadow: 0 12px 24px rgba(85,214,194,.18); }
    .btn-main:hover { color: var(--navy); background: #83eadb; transform: translateY(-2px); }
    .btn-lightline { color: #fff; border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.06); }
    .btn-lightline:hover { color: #fff; border-color: var(--violet); background: rgba(166,140,255,.16); }

    .hero-board {
      position: relative;
      z-index: 1;
      max-width: 450px;
      margin: 18px 0 0 auto;
      padding: 22px;
      border: 1px solid rgba(255,255,255,.14);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.09);
      box-shadow: var(--shadow-deep);
      backdrop-filter: blur(12px);
    }
    .board-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
    .board-top strong { font-size: 1.05rem; }
    .live-dot { color: var(--cyan); font-size: .75rem; font-weight: 800; }
    .live-dot i { margin-right: 6px; font-size: .55rem; }
    .rank-row {
      display: grid;
      grid-template-columns: 28px 1fr auto;
      align-items: center;
      gap: 12px;
      padding: 14px 0;
      border-top: 1px solid rgba(255,255,255,.11);
    }
    .rank-no { color: var(--violet); font-weight: 900; }
    .rank-name { font-weight: 700; }
    .rank-desc { display: block; color: #9daac4; font-size: .78rem; font-weight: 400; }
    .rank-score { color: var(--cyan); font-weight: 900; }

    .countdown-wrap { margin-top: -1px; padding: 20px 0; color: #fff; background: #202b50; }
    .countdown { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .countdown-label { color: #cbd2e2; font-size: .92rem; }
    .timer { display: flex; align-items: center; gap: 9px; }
    .time-box { min-width: 58px; padding: 7px 10px; text-align: center; border: 1px solid rgba(255,255,255,.15); border-radius: 10px; background: rgba(255,255,255,.08); }
    .time-box strong { display: block; font-size: 1.25rem; line-height: 1.1; }
    .time-box small { color: #aeb9cf; font-size: .7rem; }

    .highlight-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 18px; }
    .feature-card, .info-card, .quote-card, .topic-card, .security-card {
      height: 100%;
      padding: 27px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fff;
      transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .feature-card:hover, .info-card:hover, .quote-card:hover, .topic-card:hover, .security-card:hover { transform: translateY(-5px); border-color: rgba(114,87,242,.3); box-shadow: var(--shadow); }
    .feature-card.large { color: #fff; border: 0; background: linear-gradient(140deg, #4e3fa7, #242b59); }
    .icon-box { width: 46px; height: 46px; display: grid; place-items: center; margin-bottom: 20px; border-radius: 14px; color: var(--purple); background: var(--soft-purple); }
    .feature-card.large .icon-box { color: var(--navy); background: var(--cyan); }
    .feature-card p, .info-card p, .topic-card p, .security-card p { color: var(--muted); margin: 12px 0 0; font-size: .93rem; }
    .feature-card.large p { color: #c9d0e4; }
    .feature-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 28px; color: var(--cyan); font-size: .82rem; font-weight: 800; }

    .benefit-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: center; }
    .benefit-visual {
      min-height: 330px;
      padding: 28px;
      color: #fff;
      border-radius: var(--radius-lg);
      background: linear-gradient(145deg, #202d57, #513f98);
      box-shadow: var(--shadow-deep);
    }
    .benefit-visual h3 { max-width: 260px; font-size: 1.8rem; }
    .signal-line { display: flex; align-items: end; gap: 8px; height: 130px; margin-top: 35px; }
    .signal-line span { flex: 1; border-radius: 7px 7px 2px 2px; background: linear-gradient(to top, var(--cyan), var(--violet)); }
    .signal-line span:nth-child(1) { height: 35%; }.signal-line span:nth-child(2) { height: 57%; }.signal-line span:nth-child(3) { height: 47%; }.signal-line span:nth-child(4) { height: 78%; }.signal-line span:nth-child(5) { height: 94%; }.signal-line span:nth-child(6) { height: 72%; }
    .benefit-list { display: grid; gap: 18px; }
    .benefit-item { display: grid; grid-template-columns: 40px 1fr; gap: 14px; }
    .benefit-item .number { display: grid; place-items: center; width: 34px; height: 34px; color: var(--purple); border-radius: 10px; background: var(--soft-purple); font-weight: 900; }
    .benefit-item p { margin: 5px 0 0; color: var(--muted); font-size: .92rem; }

    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
    .step-card { position: relative; padding: 25px 22px; border-top: 3px solid var(--purple); background: #fff; }
    .step-card::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 23px; color: var(--purple); font-size: 1.8rem; font-weight: 900; }
    .step-card p { color: var(--muted); margin: 11px 0 0; font-size: .9rem; }

    .reward-band { color: #fff; background: var(--navy); }
    .reward-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .reward-card { position: relative; padding: 26px; border: 1px solid rgba(255,255,255,.13); border-radius: var(--radius-md); background: rgba(255,255,255,.07); }
    .reward-card.featured { border-color: var(--cyan); background: rgba(85,214,194,.11); }
    .badge { display: inline-flex; padding: 5px 10px; color: var(--navy); border-radius: 999px; background: var(--orange); font-size: .72rem; font-weight: 900; }
    .reward-card h3 { margin-top: 20px; }
    .reward-card p { min-height: 56px; color: #bac4d9; font-size: .9rem; }
    .reward-value { display: flex; align-items: baseline; gap: 7px; margin-top: 20px; color: var(--cyan); font-size: 2rem; font-weight: 900; }
    .reward-value small { color: #9eabc4; font-size: .8rem; font-weight: 600; }

    .topic-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .topic-card { padding: 22px; }
    .topic-card .topic-icon { color: var(--purple); font-size: 1.35rem; }
    .topic-card h3 { margin-top: 16px; font-size: 1.05rem; }

    .compare-table { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; }
    .compare-row { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); align-items: center; border-bottom: 1px solid var(--line); }
    .compare-row:last-child { border-bottom: 0; }
    .compare-row > div { padding: 17px 20px; color: var(--muted); font-size: .9rem; }
    .compare-row.head { color: #fff; background: var(--navy); }
    .compare-row.head > div { color: #fff; font-weight: 800; }
    .compare-row > div:not(:first-child) { text-align: center; }
    .compare-row i { color: var(--purple); }

    .news-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; }
    .news-feature { min-height: 330px; display: flex; flex-direction: column; justify-content: end; padding: 30px; color: #fff; border-radius: var(--radius-lg); background: linear-gradient(0deg, rgba(16,23,42,.94), rgba(16,23,42,.08)), url("https://images.unsplash.com/photo-1511512578047-dfb367046420?auto=format&fit=crop&w=1000&q=80") center/cover; }
    .news-feature p { max-width: 560px; color: #d0d6e4; margin: 13px 0 0; }
    .news-list { display: grid; gap: 12px; }
    .news-item { display: grid; grid-template-columns: 96px 1fr; gap: 16px; align-items: center; padding: 12px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
    .news-item img { width: 96px; height: 80px; object-fit: cover; border-radius: 10px; }
    .news-item h3 { font-size: 1rem; }
    .news-item small { display: block; color: var(--purple); margin-top: 7px; }

    .security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .security-card { text-align: center; }
    .security-card .icon-box { margin: 0 auto 17px; }

    .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .quote-card { position: relative; padding-top: 34px; }
    .quote-card::before { content: "“"; position: absolute; top: 12px; left: 24px; color: var(--violet); font-size: 3rem; line-height: 1; font-weight: 900; }
    .quote-card p { color: #4e5970; }
    .quote-user { display: flex; align-items: center; gap: 10px; margin-top: 20px; color: var(--muted); font-size: .83rem; font-weight: 700; }
    .avatar { width: 34px; height: 34px; display: grid; place-items: center; color: #fff; border-radius: 50%; background: var(--purple); }

    .signup-section { padding: 88px 0; color: #fff; background: linear-gradient(135deg, #242c59, #513f98); }
    .signup-layout { display: grid; grid-template-columns: 1fr .9fr; gap: 55px; align-items: center; }
    .signup-section p { color: #d1d7e8; }
    .signup-form { padding: 28px; border-radius: var(--radius-lg); background: #fff; color: var(--ink); box-shadow: var(--shadow-deep); }
    .form-label { margin-bottom: 6px; color: #4e5970; font-size: .83rem; font-weight: 800; }
    .form-control { min-height: 46px; border: 1px solid var(--line); border-radius: 10px; }
    .form-control:focus { border-color: var(--purple); box-shadow: 0 0 0 .2rem rgba(114,87,242,.13); }
    .form-note { color: var(--muted); font-size: .76rem; }

    .site-footer { padding: 54px 0 24px; color: #aeb9cf; background: #10172a; }
    .footer-brand { color: #fff; }
    .footer-copy { max-width: 390px; margin-top: 15px; font-size: .88rem; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 20px; justify-content: flex-end; }
    .footer-links a:hover { color: var(--cyan); }
    .footer-bottom { display: flex; justify-content: space-between; gap: 15px; margin-top: 38px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: .78rem; }

    @media (max-width: 991px) {
      .nav-grid { padding: 15px 0; }
      .nav-action { display: inline-flex; margin: 8px 0 0; }
      .highlight-grid, .benefit-layout, .news-layout, .signup-layout { grid-template-columns: 1fr 1fr; }
      .highlight-grid .large { grid-column: 1 / -1; }
      .steps { grid-template-columns: repeat(2, 1fr); }
      .topic-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-board { margin: 45px 0 0; }
    }
    @media (max-width: 767px) {
      .section { padding: 68px 0; }
      .hero { padding: 62px 0 52px; }
      .hero p { font-size: 1rem; }
      .countdown { align-items: flex-start; flex-direction: column; }
      .timer { width: 100%; justify-content: space-between; }
      .time-box { flex: 1; min-width: 0; }
      .highlight-grid, .benefit-layout, .news-layout, .signup-layout, .reward-grid, .security-grid, .quote-grid { grid-template-columns: 1fr; }
      .benefit-visual { min-height: 270px; }
      .compare-table { overflow-x: auto; }
      .compare-row { min-width: 680px; }
      .footer-links { justify-content: flex-start; margin-top: 25px; }
      .footer-bottom { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 520px) {
      h1 { font-size: 2.45rem; }
      h2 { font-size: 2rem; }
      .hero-links { display: grid; }
      .hero-links a { width: 100%; }
      .steps, .topic-grid { grid-template-columns: 1fr; }
      .feature-card, .info-card, .topic-card, .security-card, .quote-card { padding: 22px; }
      .news-item { grid-template-columns: 80px 1fr; }
      .news-item img { width: 80px; height: 72px; }
    }

/* roulang page: category1 */
:root {
 --ink:#10172a;
 --navy:#131d38;
 --navy-2:#1c2a4d;
 --purple:#7257f2;
 --violet:#a68cff;
 --cyan:#55d6c2;
 --orange:#ffb35c;
 --paper:#f6f7fb;
 --white:#fff;
 --muted:#6e7890;
 --line:#e4e7f0;
 --soft-purple:#eeebff;
 --radius-lg:26px;
 --radius-md:16px;
 --shadow:0 18px 46px rgba(30,42,76,.10);
 --shadow-deep:0 24px 70px rgba(12,21,48,.22);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;letter-spacing:0}
a{color:inherit;text-decoration:none;transition:color .25s ease,transform .25s ease,background .25s ease,border-color .25s ease}
img{display:block;max-width:100%}
button,input,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(85,214,194,.55);outline-offset:3px}
.container{max-width:1180px}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.93);border-bottom:1px solid rgba(228,231,240,.88);backdrop-filter:blur(18px)}
.navbar{min-height:78px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);font-size:1.35rem;font-weight:900;letter-spacing:.01em}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;color:#fff;border-radius:12px;background:linear-gradient(145deg,var(--purple),var(--navy-2));box-shadow:0 8px 18px rgba(114,87,242,.25)}
.nav-grid{display:flex;align-items:center;gap:8px}
.nav-link{display:flex;align-items:center;gap:7px;padding:9px 13px!important;border-radius:12px;color:#667089!important;font-size:.92rem;font-weight:700}
.nav-link:hover,.nav-link.active{color:var(--purple)!important;background:var(--soft-purple)}
.nav-action{margin-left:10px;padding:11px 18px;border-radius:12px;color:#fff;background:var(--ink);font-size:.88rem;font-weight:800}
.nav-action:hover{color:#fff;background:var(--purple);transform:translateY(-2px)}
.navbar-toggler{border:0;box-shadow:none!important;color:var(--ink)}
.hero-inner{position:relative;overflow:hidden;padding:88px 0 82px;color:#fff;background:linear-gradient(105deg,rgba(14,22,47,.98),rgba(36,38,87,.92)),url("https://images.unsplash.com/photo-1550745165-9bc0b252726f?auto=format&fit=crop&w=1800&q=85") center/cover}
.hero-inner:before{content:"";position:absolute;width:470px;height:470px;right:-180px;top:-180px;border:1px solid rgba(166,140,255,.3);border-radius:50%;box-shadow:0 0 0 40px rgba(166,140,255,.05),0 0 0 80px rgba(166,140,255,.03)}
.hero-copy{position:relative;z-index:1;max-width:730px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border:1px solid rgba(114,87,242,.22);border-radius:999px;color:var(--purple);background:var(--soft-purple);font-size:12px;font-weight:800;letter-spacing:.08em}
.hero-inner .eyebrow{color:var(--cyan);background:rgba(85,214,194,.1);border-color:rgba(85,214,194,.28)}
h1,h2,h3,h4{font-weight:900;line-height:1.25;letter-spacing:0}
h1{font-size:clamp(2.45rem,5vw,4.5rem);margin:20px 0}
h2{font-size:clamp(1.8rem,3vw,2.65rem);margin:0}
h3{font-size:1.3rem;margin:0}
.hero-copy p{max-width:690px;color:#cbd2e2;font-size:1.08rem;margin:0}
.hero-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn-main,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:12px 20px;border-radius:13px;font-weight:800;border:1px solid transparent}
.btn-main{color:var(--navy);background:var(--cyan);box-shadow:0 12px 24px rgba(85,214,194,.18)}
.btn-main:hover{color:var(--navy);background:#83eadb;transform:translateY(-2px)}
.btn-lightline{color:#fff;border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.06)}
.btn-lightline:hover{color:#fff;border-color:var(--violet);background:rgba(166,140,255,.16)}
.section{padding:88px 0;position:relative}
.section-soft{background:#fff}
.section-dark{color:#fff;background:var(--navy)}
.section-head{max-width:730px;margin-bottom:40px}
.section-head p{color:var(--muted);margin:15px 0 0}
.section-dark .section-head p{color:#b8c2d9}
.metric-strip{margin-top:-42px;position:relative;z-index:3}
.metric-panel{padding:25px 28px;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow)}
.metric-item{display:flex;align-items:center;gap:14px;min-height:68px;border-right:1px solid var(--line)}
.metric-item:last-child{border-right:0}
.metric-icon{width:44px;height:44px;display:grid;place-items:center;color:var(--purple);border-radius:14px;background:var(--soft-purple)}
.metric-value{font-size:1.45rem;font-weight:900;line-height:1.15}
.metric-label{color:var(--muted);font-size:.86rem}
.topic-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
.topic-card,.info-card,.feature-card,.quote-card,.security-card{height:100%;padding:27px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.topic-card:hover,.info-card:hover,.feature-card:hover,.quote-card:hover,.security-card:hover{transform:translateY(-5px);border-color:rgba(114,87,242,.3);box-shadow:var(--shadow)}
.topic-card.featured{color:#fff;border:0;background:linear-gradient(140deg,#4e3fa7,#242b59)}
.topic-card p,.info-card p,.feature-card p,.security-card p{color:var(--muted);margin:12px 0 0;font-size:.93rem}
.topic-card.featured p{color:#d8d9ec}
.icon-box{width:48px;height:48px;display:grid;place-items:center;margin-bottom:22px;color:var(--navy);border-radius:15px;background:var(--cyan);font-size:1.1rem}
.topic-card:not(.featured) .icon-box{color:var(--purple);background:var(--soft-purple)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{display:inline-flex;padding:5px 10px;border-radius:999px;color:var(--purple);background:var(--soft-purple);font-size:.76rem;font-weight:800}
.featured .tag{color:var(--navy);background:rgba(85,214,194,.9)}
.comparison{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.compare-card{padding:30px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--line)}
.compare-card.dark{color:#fff;background:var(--navy-2);border-color:transparent}
.compare-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.dark .compare-head{border-color:rgba(255,255,255,.14)}
.score{color:var(--purple);font-size:1.45rem;font-weight:900}
.dark .score{color:var(--cyan)}
.compare-list{list-style:none;margin:20px 0 0;padding:0}
.compare-list li{display:flex;align-items:flex-start;gap:10px;padding:10px 0;color:var(--muted);border-bottom:1px solid rgba(228,231,240,.7)}
.dark .compare-list li{color:#c4cade;border-color:rgba(255,255,255,.1)}
.compare-list i{margin-top:5px;color:var(--cyan)}
.timeline{position:relative;margin-top:12px}
.timeline:before{content:"";position:absolute;left:17px;top:12px;bottom:12px;width:2px;background:linear-gradient(var(--purple),var(--cyan))}
.timeline-row{position:relative;display:grid;grid-template-columns:36px 1fr;gap:20px;padding:15px 0}
.timeline-dot{position:relative;z-index:1;width:36px;height:36px;display:grid;place-items:center;color:#fff;border-radius:50%;background:var(--purple);font-size:.8rem;font-weight:900}
.timeline-row:nth-child(2) .timeline-dot{background:#8c73f5}.timeline-row:nth-child(3) .timeline-dot{background:var(--cyan);color:var(--navy)}
.timeline-content{padding:3px 0}.timeline-content strong{display:block;font-size:1.08rem}.timeline-content span{display:block;color:var(--muted);font-size:.92rem;margin-top:4px}
.news-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:18px}
.news-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;transition:transform .25s ease,box-shadow .25s ease}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.news-image{height:185px;object-fit:cover;width:100%}
.news-body{padding:23px}.news-meta{color:var(--purple);font-size:.78rem;font-weight:800}.news-body h3{margin-top:10px}.news-body p{color:var(--muted);font-size:.9rem;margin:10px 0 0}
.security-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.security-panel{padding:34px;border-radius:var(--radius-lg);background:#202c50}
.security-list{list-style:none;padding:0;margin:24px 0 0}
.security-list li{display:flex;gap:12px;padding:14px 0;color:#c8d1e5;border-bottom:1px solid rgba(255,255,255,.12)}
.security-list i{color:var(--cyan);margin-top:5px}
.answer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.answer-card{padding:24px;border-left:3px solid var(--purple);background:#fff;border-radius:0 var(--radius-md) var(--radius-md) 0;box-shadow:0 8px 24px rgba(30,42,76,.06)}
.answer-card h3{font-size:1.12rem}.answer-card p{color:var(--muted);font-size:.92rem;margin:10px 0 0}
.signup-wrap{display:grid;grid-template-columns:1fr .8fr;gap:34px;align-items:center}
.signup-box{padding:30px;border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow)}
.form-control{min-height:50px;border:1px solid var(--line);border-radius:12px;padding:11px 14px}
.form-control:focus{border-color:var(--purple);box-shadow:0 0 0 4px rgba(114,87,242,.12)}
.form-note{color:var(--muted);font-size:.82rem;margin:13px 0 0}
.site-footer{padding:58px 0 25px;color:#c2cbe0;background:var(--navy)}
.footer-brand{color:#fff}.footer-copy{max-width:520px;color:#aeb9d1;margin:20px 0 0}
.footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:20px;color:#d8deeb;font-size:.9rem;font-weight:700}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#8d9ab5;font-size:.8rem}
@media(max-width:991px){
 .nav-grid{padding:18px 0;display:grid;gap:7px}.nav-action{display:inline-flex;width:max-content;margin:5px 0 0}
 .hero-inner{padding:70px 0 65px}.metric-strip{margin-top:-25px}
 .topic-grid,.news-grid{grid-template-columns:1fr 1fr}.topic-card.featured{grid-column:span 2}
 .security-layout,.signup-wrap{grid-template-columns:1fr}
}
@media(max-width:767px){
 .section{padding:66px 0}.metric-panel{padding:18px}.metric-item{border-right:0;border-bottom:1px solid var(--line);padding:12px 0}.metric-item:last-child{border-bottom:0}
 .hero-inner h1{font-size:2.55rem}.hero-links{margin-top:24px}.btn-main,.btn-lightline{width:100%}
 .topic-grid,.news-grid,.comparison,.answer-grid{grid-template-columns:1fr}.topic-card.featured{grid-column:auto}
 .compare-card{padding:23px}.footer-links{justify-content:flex-start;margin-top:12px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
}
@media(max-width:520px){
 .container{padding-left:20px;padding-right:20px}.hero-inner{padding:58px 0}.hero-inner h1{font-size:2.2rem}.section-head{margin-bottom:28px}
 .metric-panel{border-radius:18px}.news-image{height:170px}.signup-box{padding:22px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}