/* roulang page: index */
:root {
            --ink: #18212f;
            --muted: #667386;
            --paper: #f7f8fa;
            --white: #ffffff;
            --line: #e4e8ee;
            --navy: #14253d;
            --navy-2: #203957;
            --orange: #ef7d3c;
            --orange-dark: #d96429;
            --mint: #d9f0e8;
            --mint-dark: #267b68;
            --yellow: #f5c85b;
            --radius-lg: 24px;
            --radius-md: 14px;
            --shadow-sm: 0 8px 24px rgba(24, 33, 47, .07);
            --shadow-lg: 0 24px 60px rgba(24, 33, 47, .14);
        }

        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--paper);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            letter-spacing: 0;
        }
        a { color: inherit; text-decoration: none; }
        img { max-width: 100%; display: block; }
        button, input { font: inherit; }
        .container { max-width: 1180px; }
        .topline {
            background: var(--navy);
            color: #dce7f2;
            font-size: .82rem;
            letter-spacing: .02em;
        }
        .topline-inner {
            min-height: 34px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .topline strong { color: var(--yellow); font-weight: 700; }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,.94);
            border-bottom: 1px solid rgba(228,232,238,.9);
            backdrop-filter: blur(16px);
        }
        .navbar { min-height: 78px; }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            font-size: 1.08rem;
            font-weight: 800;
            color: var(--navy);
            white-space: nowrap;
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            display: grid;
            place-items: center;
            border-radius: 12px;
            color: var(--white);
            background: var(--orange);
            font-size: 1.3rem;
            box-shadow: 0 7px 16px rgba(239,125,60,.28);
        }
        .nav-scroll {
            display: flex;
            align-items: center;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-scroll::-webkit-scrollbar { display: none; }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            min-height: 38px;
            padding: 0 15px;
            border: 1px solid transparent;
            border-radius: 999px;
            color: var(--muted);
            font-size: .9rem;
            white-space: nowrap;
            transition: .2s ease;
        }
        .nav-chip:hover, .nav-chip:focus-visible {
            color: var(--navy);
            background: #f0f3f6;
            border-color: var(--line);
        }
        .nav-chip.active {
            color: var(--navy);
            background: var(--mint);
            border-color: #bde1d4;
            font-weight: 700;
        }
        .nav-action {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 16px;
            border-radius: 11px;
            color: var(--white);
            background: var(--navy);
            font-size: .88rem;
            font-weight: 700;
            transition: .2s ease;
        }
        .nav-action:hover, .nav-action:focus-visible {
            color: var(--white);
            background: var(--orange);
            transform: translateY(-1px);
        }
        .hero {
            position: relative;
            overflow: hidden;
            padding: 74px 0 78px;
            background: var(--navy);
            color: var(--white);
        }
        .hero::after {
            content: "";
            position: absolute;
            width: 470px;
            height: 470px;
            right: -120px;
            top: -160px;
            border: 1px solid rgba(245,200,91,.25);
            border-radius: 50%;
            box-shadow: 0 0 0 38px rgba(245,200,91,.05), 0 0 0 76px rgba(245,200,91,.035);
        }
        .hero-content { position: relative; z-index: 1; }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            margin-bottom: 19px;
            color: var(--yellow);
            font-size: .82rem;
            font-weight: 800;
            letter-spacing: .08em;
        }
        .eyebrow::before {
            content: "";
            width: 25px;
            height: 2px;
            background: var(--orange);
        }
        .hero h1 {
            max-width: 780px;
            margin: 0 0 22px;
            font-size: clamp(2.35rem, 5vw, 4.55rem);
            line-height: 1.15;
            letter-spacing: 0;
            font-weight: 850;
        }
        .hero h1 span { color: var(--yellow); }
        .hero-lead {
            max-width: 720px;
            margin-bottom: 30px;
            color: #d5e0ec;
            font-size: 1.08rem;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
        .btn-main, .btn-quiet {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 48px;
            padding: 0 21px;
            border-radius: 12px;
            font-weight: 750;
            transition: .2s ease;
        }
        .btn-main { color: var(--navy); background: var(--yellow); }
        .btn-main:hover, .btn-main:focus-visible { color: var(--navy); background: #ffd878; transform: translateY(-2px); }
        .btn-quiet { color: var(--white); border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.08); }
        .btn-quiet:hover, .btn-quiet:focus-visible { color: var(--white); border-color: var(--white); background: rgba(255,255,255,.15); }
        .hero-strip {
            position: relative;
            z-index: 1;
            margin-top: 56px;
            padding-top: 22px;
            border-top: 1px solid rgba(255,255,255,.14);
        }
        .hero-stat { border-right: 1px solid rgba(255,255,255,.14); }
        .hero-stat:last-child { border-right: 0; }
        .hero-stat strong { display: block; color: var(--yellow); font-size: 1.7rem; line-height: 1.2; }
        .hero-stat span { color: #b7c5d5; font-size: .88rem; }
        .section { padding: 84px 0; }
        .section-alt { background: #eef3f2; }
        .section-dark { background: var(--navy-2); color: var(--white); }
        .section-head { max-width: 720px; margin-bottom: 38px; }
        .section-kicker {
            margin-bottom: 10px;
            color: var(--orange-dark);
            font-size: .8rem;
            font-weight: 800;
            letter-spacing: .1em;
            text-transform: uppercase;
        }
        .section-dark .section-kicker { color: var(--yellow); }
        .section h2 {
            margin: 0 0 15px;
            font-size: clamp(1.8rem, 3vw, 2.7rem);
            line-height: 1.25;
            font-weight: 800;
        }
        .section-head p { margin: 0; color: var(--muted); }
        .section-dark .section-head p { color: #c8d4e2; }
        .feature-card, .content-card, .quote-card, .faq-item, .path-step {
            height: 100%;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: var(--white);
            box-shadow: var(--shadow-sm);
        }
        .feature-card {
            padding: 27px;
            transition: .25s ease;
        }
        .feature-card:hover, .content-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: #c9d6df;
        }
        .icon-box {
            width: 48px;
            height: 48px;
            display: grid;
            place-items: center;
            margin-bottom: 20px;
            border-radius: 13px;
            color: var(--mint-dark);
            background: var(--mint);
            font-size: 1.35rem;
        }
        .feature-card h3, .content-card h3 {
            margin: 0 0 10px;
            font-size: 1.15rem;
            font-weight: 800;
        }
        .feature-card p, .content-card p { margin: 0; color: var(--muted); font-size: .94rem; }
        .notice-band {
            padding: 22px 0;
            color: var(--navy);
            background: var(--yellow);
        }
        .notice-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .notice-inner strong { font-size: 1.1rem; }
        .notice-inner span { display: block; color: #5c4c22; font-size: .9rem; }
        .dark-button {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 17px;
            border-radius: 10px;
            color: var(--white);
            background: var(--navy);
            font-size: .88rem;
            font-weight: 700;
            white-space: nowrap;
        }
        .dark-button:hover { color: var(--white); background: var(--orange-dark); }
        .demo-panel {
            min-height: 340px;
            padding: 28px;
            border-radius: var(--radius-lg);
            background: var(--navy);
            box-shadow: var(--shadow-lg);
        }
        .demo-panel-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            color: #cddaea;
            font-size: .86rem;
        }
        .live-label {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: #a9ead7;
        }
        .live-label::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #62d9b6;
            box-shadow: 0 0 0 5px rgba(98,217,182,.12);
        }
        .demo-number {
            margin-bottom: 25px;
            color: var(--yellow);
            font-size: 3.8rem;
            font-weight: 800;
            line-height: 1;
        }
        .demo-caption { color: #cddaea; }
        .demo-list { margin: 24px 0 0; padding: 0; list-style: none; }
        .demo-list li {
            display: flex;
            justify-content: space-between;
            padding: 12px 0;
            border-top: 1px solid rgba(255,255,255,.12);
            color: #d9e3ef;
            font-size: .9rem;
        }
        .demo-list b { color: #9be2ce; font-weight: 700; }
        .result-grid { align-items: stretch; }
        .result-card {
            min-height: 190px;
            padding: 26px;
            border-left: 4px solid var(--orange);
            background: var(--white);
            box-shadow: var(--shadow-sm);
        }
        .result-card strong { display: block; margin-bottom: 8px; color: var(--navy); font-size: 1.35rem; }
        .result-card p { margin: 0; color: var(--muted); font-size: .92rem; }
        .issue-list { margin: 0; padding: 0; list-style: none; }
        .issue-list li {
            display: flex;
            gap: 15px;
            padding: 18px 0;
            border-bottom: 1px solid var(--line);
        }
        .issue-list li:last-child { border-bottom: 0; }
        .issue-list i { color: var(--orange); font-size: 1.2rem; }
        .issue-list strong { display: block; margin-bottom: 3px; }
        .issue-list span { color: var(--muted); font-size: .92rem; }
        .path-wrap { position: relative; }
        .path-wrap::before {
            content: "";
            position: absolute;
            left: 12%;
            right: 12%;
            top: 34px;
            border-top: 2px dashed #b9d9d0;
        }
        .path-step {
            position: relative;
            z-index: 1;
            padding: 22px;
            background: #f9fcfb;
            text-align: center;
        }
        .path-index {
            width: 28px;
            height: 28px;
            display: grid;
            place-items: center;
            margin: 0 auto 15px;
            border-radius: 50%;
            color: var(--white);
            background: var(--mint-dark);
            font-size: .84rem;
            font-weight: 800;
        }
        .path-step h3 { margin: 0 0 7px; font-size: 1.05rem; }
        .path-step p { margin: 0; color: var(--muted); font-size: .88rem; }
        .content-card { overflow: hidden; transition: .25s ease; }
        .card-visual {
            min-height: 120px;
            display: flex;
            align-items: end;
            padding: 20px;
            color: var(--white);
            background: var(--navy-2);
        }
        .card-visual.orange { background: var(--orange); }
        .card-visual.mint { color: var(--navy); background: var(--mint); }
        .card-visual i { font-size: 2.2rem; opacity: .92; }
        .content-body { padding: 22px; }
        .content-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 12px;
            color: var(--orange-dark);
            font-size: .78rem;
            font-weight: 700;
        }
        .content-body h3 { font-size: 1.08rem; }
        .quote-card { padding: 27px; }
        .quote-mark { color: var(--orange); font-size: 2.3rem; line-height: 1; }
        .quote-card p { margin: 12px 0 20px; color: var(--ink); }
        .quote-user { display: flex; align-items: center; gap: 11px; }
        .avatar {
            width: 35px;
            height: 35px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            color: var(--navy);
            background: var(--yellow);
            font-size: .82rem;
            font-weight: 800;
        }
        .quote-user small { color: var(--muted); }
        .compare-table {
            overflow: hidden;
            border: 1px solid rgba(255,255,255,.15);
            border-radius: var(--radius-md);
            background: rgba(255,255,255,.06);
        }
        .compare-row {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr;
            border-bottom: 1px solid rgba(255,255,255,.13);
        }
        .compare-row:last-child { border-bottom: 0; }
        .compare-row > div { padding: 17px 20px; color: #d3ddea; font-size: .92rem; }
        .compare-row > div + div { border-left: 1px solid rgba(255,255,255,.13); }
        .compare-row.head > div { color: var(--yellow); font-weight: 800; }
        .compare-row i { margin-right: 6px; color: #9be2ce; }
        .faq-item { padding: 22px 25px; }
        .faq-item h3 { margin: 0 0 8px; font-size: 1rem; }
        .faq-item p { margin: 0; color: var(--muted); font-size: .92rem; }
        .subscribe {
            padding: 38px;
            border-radius: var(--radius-lg);
            background: var(--mint);
        }
        .subscribe h2 { margin-bottom: 10px; }
        .subscribe p { margin-bottom: 0; color: #41665d; }
        .subscribe-form { display: flex; gap: 10px; }
        .subscribe-form input {
            width: 100%;
            min-height: 48px;
            padding: 0 15px;
            border: 1px solid #b9d9d0;
            border-radius: 11px;
            color: var(--ink);
            background: var(--white);
            outline: none;
        }
        .subscribe-form input:focus { border-color: var(--mint-dark); box-shadow: 0 0 0 4px rgba(38,123,104,.12); }
        .footer {
            padding: 58px 0 30px;
            color: #b8c7d7;
            background: #101d30;
        }
        .footer .brand { color: var(--white); }
        .footer p { margin: 19px 0 0; color: #9eadbf; font-size: .9rem; }
        .footer h3 { margin: 0 0 15px; color: var(--white); font-size: .95rem; }
        .footer-links { display: grid; gap: 9px; }
        .footer-links a { color: #aab9ca; font-size: .88rem; transition: .2s ease; }
        .footer-links a:hover { color: var(--yellow); }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 45px;
            padding-top: 21px;
            border-top: 1px solid rgba(255,255,255,.12);
            color: #8495a9;
            font-size: .8rem;
        }
        :focus-visible { outline: 3px solid rgba(239,125,60,.45); outline-offset: 3px; }
        @media (max-width: 991.98px) {
            .navbar { min-height: 70px; }
            .nav-action { display: none; }
            .hero { padding-top: 60px; }
            .path-wrap::before { left: 10%; right: 10%; }
        }
        @media (max-width: 767.98px) {
            .topline-inner { min-height: 30px; font-size: .74rem; }
            .topline-inner span:last-child { display: none; }
            .brand { font-size: .96rem; }
            .brand-mark { width: 34px; height: 34px; }
            .nav-scroll { margin-left: -8px; }
            .nav-chip { padding: 0 11px; font-size: .82rem; }
            .hero { padding: 52px 0 58px; }
            .hero h1 { font-size: 2.35rem; }
            .hero-lead { font-size: 1rem; }
            .hero-strip { margin-top: 42px; }
            .hero-stat { margin-bottom: 17px; border-right: 0; }
            .section { padding: 60px 0; }
            .notice-inner { align-items: flex-start; flex-direction: column; gap: 14px; }
            .path-wrap::before { display: none; }
            .subscribe { padding: 26px; }
            .subscribe-form { flex-direction: column; }
            .compare-row { grid-template-columns: 1.1fr 1fr 1fr; }
            .compare-row > div { padding: 13px 10px; font-size: .78rem; }
            .footer-bottom { flex-direction: column; gap: 8px; }
        }
        @media (max-width: 519.98px) {
            .hero-actions { flex-direction: column; align-items: stretch; }
            .btn-main, .btn-quiet { width: 100%; }
            .demo-panel { padding: 23px; }
            .demo-number { font-size: 3rem; }
            .section h2 { font-size: 1.85rem; }
            .compare-table { overflow-x: auto; }
            .compare-row { min-width: 500px; }
        }

section[id] { scroll-margin-top: 110px; }
        button { cursor: pointer; }
        .btn-main:active, .btn-quiet:active, .dark-button:active, .nav-action:active { transform: translateY(1px); }
        .dark-button { transition: background .2s ease, transform .2s ease; }
        .footer-links a:focus-visible { color: var(--yellow); }
        @media (max-width: 1024px) {
            .container { padding-left: 24px; padding-right: 24px; }
            .navbar > .container { flex-wrap: wrap; }
        }
        @media (max-width: 768px) {
            .navbar > .container { gap: 12px !important; }
            .navbar .nav-scroll { flex-basis: 100%; margin: 0; padding-bottom: 5px; }
            section[id] { scroll-margin-top: 140px; }
        }
        @media (max-width: 520px) {
            .container { padding-left: 18px; padding-right: 18px; }
            .hero h1 { overflow-wrap: anywhere; }
            .demo-panel-top { flex-wrap: wrap; gap: 10px; }
            .demo-list li { gap: 16px; }
            .demo-list b { text-align: right; }
        }
        @media (prefers-reduced-motion: reduce) {
            html { scroll-behavior: auto; }
            *, *::before, *::after { transition: none !important; }
        }

/* roulang page: category1 */
:root {
      --ink: #18212f;
      --muted: #667386;
      --paper: #f7f8fa;
      --white: #ffffff;
      --line: #e4e8ee;
      --navy: #14253d;
      --navy-2: #203957;
      --orange: #ef7d3c;
      --orange-dark: #d96429;
      --mint: #d9f0e8;
      --mint-dark: #267b68;
      --yellow: #f5c85b;
      --radius-lg: 24px;
      --radius-md: 14px;
      --shadow-sm: 0 8px 24px rgba(24, 33, 47, .07);
      --shadow-lg: 0 24px 60px rgba(24, 33, 47, .14);
    }

    html { scroll-behavior: smooth; }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      letter-spacing: 0;
    }
    a { color: inherit; text-decoration: none; }
    a:hover { color: inherit; }
    img { max-width: 100%; display: block; }
    button, input { font: inherit; }
    :focus-visible { outline: 3px solid rgba(239, 125, 60, .45); outline-offset: 3px; }
    .container { max-width: 1180px; }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255,255,255,.94);
      border-bottom: 1px solid rgba(228,232,238,.9);
      backdrop-filter: blur(16px);
    }
    .navbar { min-height: 78px; }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      font-size: 1.08rem;
      font-weight: 800;
      color: var(--navy);
      white-space: nowrap;
    }
    .brand-mark {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      color: var(--white);
      background: var(--orange);
      font-size: 1.3rem;
      box-shadow: 0 7px 16px rgba(239,125,60,.28);
    }
    .nav-scroll {
      display: flex;
      align-items: center;
      gap: 8px;
      overflow-x: auto;
      scrollbar-width: none;
    }
    .nav-scroll::-webkit-scrollbar { display: none; }
    .nav-chip {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 15px;
      border: 1px solid transparent;
      border-radius: 999px;
      color: var(--muted);
      font-size: .9rem;
      white-space: nowrap;
      transition: .2s ease;
    }
    .nav-chip:hover, .nav-chip:focus-visible {
      color: var(--navy);
      background: #f0f3f6;
      border-color: var(--line);
    }
    .nav-chip.active {
      color: var(--navy);
      background: var(--mint);
      border-color: #bde1d4;
      font-weight: 700;
    }
    .nav-action {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 10px 16px;
      border-radius: 11px;
      color: var(--white);
      background: var(--navy);
      font-size: .88rem;
      font-weight: 700;
      transition: .2s ease;
      white-space: nowrap;
    }
    .nav-action:hover, .nav-action:focus-visible {
      color: var(--white);
      background: var(--orange);
      transform: translateY(-1px);
    }

    .page-hero {
      position: relative;
      overflow: hidden;
      padding: 70px 0 66px;
      background: var(--navy);
      color: var(--white);
    }
    .page-hero::before {
      content: "";
      position: absolute;
      width: 530px;
      height: 530px;
      right: -185px;
      top: -245px;
      border: 1px solid rgba(245,200,91,.24);
      border-radius: 50%;
      box-shadow: 0 0 0 34px rgba(245,200,91,.05), 0 0 0 70px rgba(245,200,91,.03);
    }
    .page-hero::after {
      content: "";
      position: absolute;
      width: 230px;
      height: 230px;
      left: -95px;
      bottom: -140px;
      border: 1px solid rgba(217,240,232,.2);
      border-radius: 50%;
    }
    .hero-inner { position: relative; z-index: 1; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      margin-bottom: 18px;
      color: var(--yellow);
      font-size: .82rem;
      font-weight: 800;
      letter-spacing: .08em;
    }
    .eyebrow::before {
      content: "";
      width: 25px;
      height: 2px;
      background: var(--orange);
    }
    .page-hero h1 {
      max-width: 760px;
      margin: 0 0 20px;
      font-size: clamp(2.25rem, 5vw, 4.2rem);
      line-height: 1.16;
      font-weight: 850;
    }
    .page-hero h1 span { color: var(--yellow); }
    .hero-lead {
      max-width: 720px;
      margin: 0;
      color: #d5e0ec;
      font-size: 1.08rem;
    }
    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 30px;
    }
    .hero-meta span {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 8px 12px;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 999px;
      color: #e6edf4;
      background: rgba(255,255,255,.07);
      font-size: .87rem;
    }

    .section { padding: 80px 0; }
    .section-alt { background: #eef3f2; }
    .section-dark { background: var(--navy-2); color: var(--white); }
    .section-head { max-width: 720px; margin-bottom: 36px; }
    .section-kicker {
      margin-bottom: 9px;
      color: var(--orange-dark);
      font-size: .79rem;
      font-weight: 800;
      letter-spacing: .1em;
    }
    .section-dark .section-kicker { color: var(--yellow); }
    .section h2 {
      margin: 0 0 13px;
      font-size: clamp(1.8rem, 3vw, 2.7rem);
      line-height: 1.25;
      font-weight: 820;
    }
    .section-head p { margin: 0; color: var(--muted); }
    .section-dark .section-head p { color: #cad7e4; }

    .feature-grid {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 22px;
      align-items: stretch;
    }
    .feature-panel {
      min-height: 300px;
      padding: 31px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }
    .feature-panel.emphasis {
      color: var(--white);
      background: var(--navy);
      border-color: var(--navy);
    }
    .panel-icon {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      margin-bottom: 22px;
      border-radius: 14px;
      color: var(--navy);
      background: var(--yellow);
      font-size: 1.35rem;
    }
    .feature-panel h3 {
      margin: 0 0 12px;
      font-size: 1.4rem;
      line-height: 1.35;
    }
    .feature-panel p { margin: 0; color: var(--muted); }
    .feature-panel.emphasis p { color: #cbd8e4; }
    .metric-list { display: grid; gap: 12px; margin-top: 27px; }
    .metric-item {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding-top: 12px;
      border-top: 1px solid rgba(255,255,255,.15);
      color: #d4e0ea;
      font-size: .92rem;
    }
    .metric-item strong { color: var(--yellow); font-size: 1.08rem; }

    .topic-layout {
      display: grid;
      grid-template-columns: .75fr 1.25fr;
      gap: 38px;
      align-items: start;
    }
    .topic-note {
      padding: 26px;
      border-left: 4px solid var(--orange);
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }
    .topic-note h3 { margin: 0 0 10px; font-size: 1.35rem; }
    .topic-note p { margin: 0; color: var(--muted); }
    .topic-list { display: grid; gap: 12px; }
    .topic-item {
      display: grid;
      grid-template-columns: 44px 1fr auto;
      align-items: center;
      gap: 15px;
      padding: 17px 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--white);
      transition: .2s ease;
    }
    .topic-item:hover {
      border-color: #b7d8cd;
      box-shadow: var(--shadow-sm);
      transform: translateX(3px);
    }
    .topic-number {
      width: 36px;
      height: 36px;
      display: grid;
      place-items: center;
      border-radius: 10px;
      color: var(--mint-dark);
      background: var(--mint);
      font-weight: 800;
    }
    .topic-item h3 { margin: 0 0 2px; font-size: 1rem; }
    .topic-item p { margin: 0; color: var(--muted); font-size: .88rem; }
    .topic-item i { color: var(--orange); font-size: 1.2rem; }

    .signal-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }
    .signal-card {
      padding: 25px;
      border-top: 3px solid var(--orange);
      background: rgba(255,255,255,.08);
    }
    .signal-card:nth-child(2) { border-color: var(--yellow); }
    .signal-card:nth-child(3) { border-color: var(--mint); }
    .signal-card h3 { margin: 0 0 9px; font-size: 1.15rem; }
    .signal-card p { margin: 0; color: #cbd8e4; font-size: .92rem; }

    .news-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
    }
    .news-card {
      display: flex;
      gap: 20px;
      padding: 23px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--white);
      transition: .2s ease;
    }
    .news-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
      border-color: #f0c2a8;
    }
    .news-date {
      flex: 0 0 55px;
      color: var(--orange-dark);
      font-size: .78rem;
      font-weight: 800;
      line-height: 1.3;
      text-align: center;
    }
    .news-date strong { display: block; font-size: 1.55rem; }
    .news-card h3 { margin: 0 0 7px; font-size: 1.1rem; line-height: 1.4; }
    .news-card p { margin: 0; color: var(--muted); font-size: .9rem; }

    .compare-wrap {
      overflow: hidden;
      border: 1px solid rgba(255,255,255,.14);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.06);
    }
    .compare-row {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      border-bottom: 1px solid rgba(255,255,255,.12);
    }
    .compare-row:last-child { border-bottom: 0; }
    .compare-row > div { padding: 17px 20px; }
    .compare-row > div + div { border-left: 1px solid rgba(255,255,255,.12); }
    .compare-head { color: var(--yellow); font-weight: 800; }
    .compare-label { color: #d8e2eb; font-weight: 700; }
    .compare-value { color: #c5d4e1; font-size: .9rem; }
    .compare-value i { margin-right: 5px; color: var(--mint); }

    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }
    .faq-item {
      padding: 22px 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--white);
    }
    .faq-item h3 {
      display: flex;
      gap: 10px;
      margin: 0 0 9px;
      font-size: 1.04rem;
      line-height: 1.45;
    }
    .faq-item h3 i { color: var(--orange); }
    .faq-item p { margin: 0; color: var(--muted); font-size: .91rem; }

    .assurance {
      padding: 34px;
      border-radius: var(--radius-lg);
      background: var(--mint);
      border: 1px solid #bde1d4;
    }
    .assurance-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 35px;
      align-items: center;
    }
    .assurance h2 { margin-bottom: 12px; }
    .assurance p { margin: 0; color: #477065; }
    .assurance-list { display: grid; gap: 10px; }
    .assurance-list div {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--navy);
      font-weight: 700;
    }
    .assurance-list i { color: var(--mint-dark); }

    .footer {
      padding: 62px 0 25px;
      color: #c8d4df;
      background: var(--navy);
    }
    .footer .brand { color: var(--white); }
    .footer p {
      max-width: 520px;
      margin: 19px 0 0;
      color: #aebdca;
      font-size: .9rem;
    }
    .footer h3 {
      margin: 6px 0 17px;
      color: var(--yellow);
      font-size: .95rem;
    }
    .footer-links { display: grid; gap: 8px; }
    .footer-links a {
      color: #c8d4df;
      font-size: .9rem;
      transition: .2s ease;
    }
    .footer-links a:hover { color: var(--yellow); padding-left: 3px; }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 15px;
      margin-top: 48px;
      padding-top: 19px;
      border-top: 1px solid rgba(255,255,255,.14);
      color: #91a4b5;
      font-size: .82rem;
    }

    @media (max-width: 991px) {
      .nav-action { display: none; }
      .feature-grid, .topic-layout, .assurance-grid { grid-template-columns: 1fr; }
      .feature-panel { min-height: auto; }
    }
    @media (max-width: 767px) {
      .navbar { min-height: 70px; }
      .brand { font-size: .98rem; }
      .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
      .page-hero { padding: 55px 0 52px; }
      .section { padding: 60px 0; }
      .signal-row, .news-layout, .faq-grid { grid-template-columns: 1fr; }
      .compare-wrap { overflow-x: auto; }
      .compare-row { min-width: 650px; }
      .footer-bottom { flex-direction: column; gap: 5px; }
    }
    @media (max-width: 520px) {
      .nav-chip { padding: 0 12px; font-size: .84rem; }
      .page-hero h1 { font-size: 2.25rem; }
      .hero-lead { font-size: .98rem; }
      .feature-panel, .topic-note, .assurance { padding: 23px; }
      .topic-item { grid-template-columns: 37px 1fr 18px; gap: 10px; padding: 14px; }
      .topic-number { width: 32px; height: 32px; font-size: .88rem; }
      .news-card { gap: 12px; padding: 18px; }
    }

/* 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}