/* roulang page: index */
:root {
      --ink: #1b1719;
      --ink-soft: #2b2226;
      --wine: #a63a4a;
      --wine-dark: #812d3b;
      --rose: #d86a7d;
      --copper: #c47a45;
      --paper: #fbf8f5;
      --cream: #f7f2ef;
      --line: #e7dad4;
      --muted: #776d6c;
      --white: #fffdfb;
      --shadow: 0 18px 45px rgba(36,22,26,.10);
      --shadow-dark: 0 18px 40px rgba(0,0,0,.24);
      --radius: 18px;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease; }
    img { max-width: 100%; display: block; }
    button, input { font: inherit; }
    button:focus-visible, a:focus-visible, input:focus-visible, .accordion-button:focus-visible {
      outline: 3px solid rgba(216,106,125,.35);
      outline-offset: 3px;
    }
    .container { max-width: 1220px; }

    .top-strip {
      background: var(--ink);
      color: #e9deda;
      font-size: 13px;
      letter-spacing: 0;
    }
    .top-strip .container {
      min-height: 34px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 18px;
    }
    .top-note { display: flex; align-items: center; gap: 8px; }
    .age-mark {
      display: inline-grid;
      place-items: center;
      width: 24px;
      height: 24px;
      border-radius: 7px;
      background: var(--wine);
      color: #fff;
      font-weight: 800;
      font-size: 11px;
      line-height: 1;
    }

    .site-header {
      position: relative;
      z-index: 20;
      background: rgba(251,248,245,.96);
      border-bottom: 1px solid var(--line);
    }
    .header-main {
      min-height: 82px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }
    .brand-symbol {
      position: relative;
      width: 42px;
      height: 42px;
      flex: 0 0 42px;
      border: 2px solid var(--wine);
      border-radius: 13px;
      transform: rotate(-8deg);
    }
    .brand-symbol::before,
    .brand-symbol::after {
      content: "";
      position: absolute;
      background: var(--wine);
      border-radius: 3px;
      transform: rotate(8deg);
    }
    .brand-symbol::before { width: 16px; height: 5px; left: 11px; top: 12px; }
    .brand-symbol::after { width: 10px; height: 5px; left: 11px; top: 22px; }
    .brand-name {
      font-weight: 800;
      font-size: 20px;
      line-height: 1.2;
      white-space: nowrap;
    }
    .brand-sub {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 11px;
      font-weight: 500;
    }
    .header-action { flex-shrink: 0; }

    .btn-brand,
    .btn-outline-brand,
    .btn-light-brand {
      min-height: 46px;
      padding: 10px 18px;
      border-radius: 13px;
      font-weight: 700;
      border: 1px solid transparent;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: all .2s ease;
    }
    .btn-brand { color: #fff; background: var(--wine); box-shadow: 0 9px 22px rgba(166,58,74,.18); }
    .btn-brand:hover { color: #fff; background: var(--wine-dark); transform: translateY(-2px); box-shadow: 0 13px 25px rgba(166,58,74,.26); }
    .btn-outline-brand { color: var(--wine); background: transparent; border-color: #cfaab0; }
    .btn-outline-brand:hover { color: var(--wine-dark); background: #f9e9e9; border-color: var(--wine); transform: translateY(-2px); }
    .btn-light-brand { color: var(--ink); background: var(--white); border-color: rgba(255,255,255,.35); }
    .btn-light-brand:hover { color: var(--wine); background: #fff; transform: translateY(-2px); }

    .category-nav {
      padding: 0 0 15px;
      overflow-x: auto;
      scrollbar-width: none;
    }
    .category-nav::-webkit-scrollbar { display: none; }
    .nav-chips { display: flex; gap: 8px; min-width: max-content; }
    .nav-chip {
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: 7px 15px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: #675c5c;
      background: #f5efec;
      font-size: 14px;
      font-weight: 700;
    }
    .nav-chip:hover { color: var(--wine); border-color: #cb9aa2; background: #fff8f7; }
    .nav-chip.active { color: #fff; background: var(--ink); border-color: var(--ink); }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 78px 0 68px;
      color: #fff7f3;
      background: var(--ink);
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: .16;
      background-image: linear-gradient(90deg, transparent 49%, rgba(255,255,255,.14) 50%, transparent 51%), linear-gradient(rgba(255,255,255,.10) 1px, transparent 1px);
      background-size: 180px 100%, 100% 72px;
      pointer-events: none;
    }
    .hero .container { position: relative; z-index: 1; }
    .hero-layout { display: grid; grid-template-columns: 5fr 7fr; gap: 58px; align-items: center; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 18px;
      color: #efb2bb;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .04em;
    }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--copper); }
    .hero h1 {
      max-width: 680px;
      margin: 0 0 20px;
      font-size: clamp(34px, 4.6vw, 56px);
      line-height: 1.17;
      font-weight: 800;
    }
    .hero-copy {
      max-width: 620px;
      margin-bottom: 28px;
      color: #d8c9c6;
      font-size: 17px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 31px; }
    .hero-metrics { display: flex; flex-wrap: wrap; gap: 22px; }
    .metric { padding-left: 14px; border-left: 2px solid var(--wine); }
    .metric strong { display: block; color: #fff; font-size: 20px; line-height: 1.2; }
    .metric span { color: #aa9b99; font-size: 12px; }

    .access-stage {
      min-height: 390px;
      position: relative;
      padding: 22px;
      border: 1px solid rgba(255,255,255,.16);
      border-radius: 25px;
      background: #271e22;
      box-shadow: var(--shadow-dark);
    }
    .stage-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 17px;
      color: #cdbfbc;
      font-size: 13px;
      border-bottom: 1px solid rgba(255,255,255,.10);
    }
    .live-status { display: inline-flex; align-items: center; gap: 7px; color: #e6a2ad; font-weight: 700; }
    .live-status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--rose); box-shadow: 0 0 0 5px rgba(216,106,125,.12); }
    .panel-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; margin-top: 19px; }
    .info-panel {
      min-height: 132px;
      padding: 18px;
      border: 1px solid rgba(255,255,255,.10);
      border-radius: 16px;
      background: #33272b;
      transition: transform .2s ease, background .2s ease, border-color .2s ease;
    }
    .info-panel:hover { transform: translateY(-3px); background: #3d2d32; border-color: rgba(216,106,125,.5); }
    .panel-icon {
      width: 32px;
      height: 32px;
      display: grid;
      place-items: center;
      margin-bottom: 13px;
      border-radius: 10px;
      color: #fff;
      background: var(--wine);
      font-size: 14px;
      font-weight: 800;
    }
    .info-panel h3 { margin: 0 0 6px; color: #fff6f2; font-size: 16px; }
    .info-panel p { margin: 0; color: #b9aaa8; font-size: 13px; line-height: 1.6; }
    .stage-footer {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      margin-top: 17px;
      padding: 13px 15px;
      color: #cdbfbc;
      background: #21191d;
      border-radius: 11px;
      font-size: 12px;
    }
    .stage-footer strong { color: #e7b0a0; }

    .section { padding: 88px 0; }
    .section-tint { background: var(--cream); }
    .section-dark { color: #fff7f3; background: var(--ink-soft); }
    .section-heading { max-width: 690px; margin-bottom: 38px; }
    .section-heading.centered { margin-right: auto; margin-left: auto; text-align: center; }
    .section-kicker { margin-bottom: 9px; color: var(--wine); font-size: 13px; font-weight: 800; }
    .section-dark .section-kicker { color: #e3a4ad; }
    h2 { margin: 0 0 12px; font-size: clamp(27px, 3vw, 38px); line-height: 1.25; font-weight: 800; }
    .section-heading p { margin: 0; color: var(--muted); font-size: 16px; }
    .section-dark .section-heading p { color: #c9b9b5; }

    .feature-layout { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; align-items: stretch; }
    .visual-board {
      min-height: 375px;
      position: relative;
      padding: 27px;
      overflow: hidden;
      border-radius: 24px;
      background: #312529;
      color: #fff;
      box-shadow: var(--shadow-dark);
    }
    .visual-board::after {
      content: "";
      position: absolute;
      width: 230px;
      height: 230px;
      right: -70px;
      bottom: -80px;
      border: 1px solid rgba(216,106,125,.42);
      border-radius: 50%;
      box-shadow: 0 0 0 30px rgba(216,106,125,.05), 0 0 0 60px rgba(216,106,125,.04);
    }
    .board-label { color: #e6a3ac; font-size: 12px; font-weight: 800; }
    .visual-board h3 { max-width: 470px; margin: 66px 0 14px; font-size: 30px; line-height: 1.35; }
    .visual-board p { max-width: 430px; margin: 0; color: #c6b6b4; }
    .board-tags { position: absolute; left: 27px; bottom: 27px; display: flex; gap: 8px; flex-wrap: wrap; }
    .board-tags span, .dark-tag { padding: 5px 10px; border: 1px solid rgba(255,255,255,.17); border-radius: 999px; color: #dbcac7; font-size: 12px; }
    .feature-list { display: grid; gap: 12px; }
    .feature-item {
      display: flex;
      gap: 15px;
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--white);
      box-shadow: 0 9px 24px rgba(45,28,31,.05);
    }
    .feature-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
    .feature-number { color: var(--wine); font-size: 13px; font-weight: 800; }
    .feature-item h3 { margin: 0 0 5px; font-size: 17px; }
    .feature-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }

    .carousel-shell { position: relative; }
    .carousel-frame {
      min-height: 330px;
      position: relative;
      overflow: hidden;
      padding: 28px;
      border-radius: 24px;
      background: #302428;
      border: 1px solid rgba(255,255,255,.12);
    }
    .carousel-frame::before {
      content: "";
      position: absolute;
      inset: 28px 28px auto;
      height: 1px;
      background: rgba(255,255,255,.16);
    }
    .mock-toolbar { display: flex; gap: 7px; margin-bottom: 35px; }
    .mock-toolbar i { width: 8px; height: 8px; border-radius: 50%; background: #d86a7d; }
    .mock-toolbar i:nth-child(2) { background: #c47a45; }
    .mock-toolbar i:nth-child(3) { background: #a9948f; }
    .mock-content { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; }
    .mock-large, .mock-small { border: 1px solid rgba(255,255,255,.13); border-radius: 13px; background: #49363b; }
    .mock-large { min-height: 195px; padding: 22px; }
    .mock-large strong { display: block; max-width: 250px; color: #fff; font-size: 25px; line-height: 1.35; }
    .mock-large span { display: inline-block; margin-top: 26px; color: #e1aaa7; font-size: 12px; }
    .mock-side { display: grid; gap: 12px; }
    .mock-small { min-height: 91px; padding: 15px; color: #ded0cd; font-size: 13px; }
    .mock-small b { display: block; margin-bottom: 6px; color: #fff; }
    .carousel-caption-custom { padding: 20px 9px 0; }
    .carousel-caption-custom h3 { margin: 0 0 4px; font-size: 20px; }
    .carousel-caption-custom p { margin: 0; color: #bbaaa8; font-size: 14px; }
    .carousel-control-prev, .carousel-control-next {
      top: auto;
      bottom: 57px;
      width: 40px;
      height: 40px;
      opacity: 1;
      border-radius: 50%;
      background: var(--wine);
    }
    .carousel-control-prev { left: auto; right: 57px; }
    .carousel-control-next { right: 9px; }

    .requirements { display: grid; grid-template-columns: 1fr 1.4fr; gap: 26px; align-items: start; }
    .requirements-intro { padding: 27px; border-radius: 20px; background: var(--ink); color: #fff; }
    .requirements-intro h3 { margin-bottom: 12px; font-size: 24px; }
    .requirements-intro p { margin: 0; color: #c9b8b5; font-size: 14px; }
    .requirement-list { border-top: 1px solid var(--line); }
    .requirement-row {
      display: grid;
      grid-template-columns: 1.2fr 1.9fr auto;
      gap: 18px;
      align-items: center;
      padding: 17px 0;
      border-bottom: 1px solid var(--line);
    }
    .requirement-row strong { font-size: 15px; }
    .requirement-row span { color: var(--muted); font-size: 14px; }
    .status { display: inline-flex; padding: 4px 9px; border-radius: 999px; color: var(--wine); background: #f6e4e5; font-size: 12px; font-weight: 800; white-space: nowrap; }

    .feedback-grid { columns: 3 260px; column-gap: 17px; }
    .feedback {
      display: inline-block;
      width: 100%;
      margin: 0 0 17px;
      padding: 22px;
      break-inside: avoid;
      border: 1px solid var(--line);
      border-radius: 17px;
      background: var(--white);
      box-shadow: 0 8px 22px rgba(45,28,31,.05);
    }
    .feedback-head { display: flex; align-items: center; gap: 11px; margin-bottom: 13px; }
    .avatar {
      display: grid;
      place-items: center;
      width: 35px;
      height: 35px;
      border-radius: 11px;
      color: #fff;
      background: var(--wine);
      font-size: 13px;
      font-weight: 800;
    }
    .feedback-head strong { display: block; font-size: 14px; }
    .feedback-head small { color: var(--muted); font-size: 12px; }
    .feedback p { margin: 0; color: #514748; font-size: 14px; line-height: 1.7; }
    .rating { margin-top: 13px; color: var(--copper); font-size: 13px; }

    .entry-band { padding: 78px 0; background: var(--ink); color: #fff; }
    .entry-layout { display: flex; justify-content: space-between; align-items: center; gap: 35px; }
    .entry-layout h2 { max-width: 590px; }
    .entry-layout p { max-width: 650px; margin: 0; color: #c7b7b4; }
    .entry-actions { display: flex; flex-wrap: wrap; gap: 10px; flex-shrink: 0; }

    .accordion { --bs-accordion-border-color: transparent; --bs-accordion-bg: transparent; }
    .accordion-item { margin-bottom: 10px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px !important; background: var(--white); }
    .accordion-button { padding: 20px 22px; color: var(--ink); background: var(--white); box-shadow: none !important; font-weight: 700; }
    .accordion-button:not(.collapsed) { color: var(--wine); background: #fff4f3; }
    .accordion-button::after { filter: sepia(1) saturate(3); }
    .accordion-body { padding: 0 22px 21px; color: var(--muted); font-size: 15px; line-height: 1.8; }

    .site-footer { padding: 50px 0 25px; color: #cdbfbc; background: #171316; }
    .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; padding-bottom: 38px; border-bottom: 1px solid rgba(255,255,255,.12); }
    .footer-brand .brand-name { color: #fff8f4; }
    .footer-brand .brand-sub { color: #9d8f8d; }
    .footer-copy { max-width: 370px; margin: 17px 0 0; color: #9d8f8d; font-size: 13px; }
    .footer-title { margin-bottom: 13px; color: #fff8f4; font-size: 14px; font-weight: 800; }
    .footer-links { display: grid; gap: 7px; font-size: 13px; }
    .footer-links a:hover { color: #e3a076; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; color: #8e8180; font-size: 12px; }
    .floating-entry { position: fixed; right: 20px; bottom: 20px; z-index: 10; }
    .floating-entry a { min-height: 44px; padding: 9px 15px; color: #fff; background: var(--wine); border-radius: 12px; box-shadow: var(--shadow-dark); font-size: 13px; font-weight: 800; }
    .floating-entry a:hover { background: var(--wine-dark); transform: translateY(-2px); }

    @media (max-width: 991.98px) {
      .header-main { min-height: 72px; }
      .hero-layout, .feature-layout, .requirements { grid-template-columns: 1fr; }
      .hero { padding-top: 58px; }
      .access-stage { min-height: auto; }
      .entry-layout { display: block; }
      .entry-actions { margin-top: 24px; }
    }
    @media (max-width: 767.98px) {
      .top-strip .container { min-height: 39px; }
      .top-strip .top-note:last-child { display: none; }
      .brand-symbol { width: 36px; height: 36px; flex-basis: 36px; border-radius: 11px; }
      .brand-name { font-size: 16px; }
      .brand-sub { display: none; }
      .header-main { gap: 12px; }
      .header-action .btn-brand { min-height: 40px; padding: 8px 12px; font-size: 13px; }
      .hero { padding: 52px 0 52px; }
      .hero h1 { font-size: 34px; }
      .hero-copy { font-size: 16px; }
      .hero-actions, .entry-actions { align-items: stretch; flex-direction: column; }
      .hero-actions a, .entry-actions a { width: 100%; }
      .panel-grid { grid-template-columns: 1fr; }
      .section { padding: 58px 0; }
      .visual-board { min-height: 340px; }
      .visual-board h3 { margin-top: 52px; font-size: 25px; }
      .carousel-frame { min-height: 390px; padding: 20px; }
      .mock-content { grid-template-columns: 1fr; }
      .mock-large { min-height: 155px; }
      .mock-side { grid-template-columns: 1fr 1fr; }
      .mock-small { min-height: 83px; }
      .requirement-row { grid-template-columns: 1fr auto; gap: 6px 12px; }
      .requirement-row span { grid-column: 1 / -1; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
      .footer-brand { grid-column: 1 / -1; }
      .footer-bottom { display: block; }
      .footer-bottom span { display: block; margin-top: 7px; }
      .floating-entry { right: 12px; bottom: 12px; }
    }
    @media (max-width: 419.98px) {
      .brand-name { white-space: normal; max-width: 155px; }
      .hero h1 { font-size: 30px; }
      .hero-metrics { gap: 13px; }
      .mock-side { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }

/* roulang page: category1 */
:root {
            --ink: #21191d;
            --ink-soft: #33262b;
            --wine: #a63a4a;
            --wine-dark: #7f2838;
            --copper: #c47a45;
            --rose: #f3e4e4;
            --paper: #fbf8f5;
            --warm: #f7f2ef;
            --white: #ffffff;
            --muted: #796d6b;
            --line: #e7dad4;
            --shadow: 0 18px 45px rgba(36, 22, 26, .1);
            --shadow-dark: 0 16px 36px rgba(0, 0, 0, .26);
            --radius-lg: 22px;
            --radius-md: 16px;
            --radius-sm: 12px;
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--paper);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: .25s ease; }
        a:hover { color: var(--wine); }
        img { max-width: 100%; display: block; }
        button, input { font: inherit; }
        :focus-visible { outline: 3px solid rgba(196, 122, 69, .45); outline-offset: 3px; }
        .container { max-width: 1210px; }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 20;
            background: rgba(251, 248, 245, .96);
            border-bottom: 1px solid var(--line);
            backdrop-filter: blur(14px);
        }
        .header-main {
            min-height: 82px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .brand-symbol {
            position: relative;
            width: 42px;
            height: 42px;
            flex: 0 0 42px;
            border-radius: 13px;
            background: var(--ink);
            box-shadow: 5px 5px 0 var(--wine);
        }
        .brand-symbol::before,
        .brand-symbol::after {
            content: "";
            position: absolute;
            background: var(--paper);
            border-radius: 4px;
        }
        .brand-symbol::before { width: 19px; height: 5px; left: 11px; top: 12px; }
        .brand-symbol::after { width: 13px; height: 5px; left: 11px; top: 23px; opacity: .65; }
        .brand-name {
            display: block;
            font-size: 17px;
            font-weight: 800;
            line-height: 1.25;
            white-space: nowrap;
        }
        .brand-sub {
            display: block;
            margin-top: 2px;
            color: var(--muted);
            font-size: 11px;
            line-height: 1.3;
        }
        .btn-brand, .btn-outline-brand {
            min-height: 46px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 0 19px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            border: 1px solid transparent;
        }
        .btn-brand { color: #fffaf8; background: var(--wine); box-shadow: 0 8px 18px rgba(166, 58, 74, .2); }
        .btn-brand:hover { color: #fff; background: var(--wine-dark); transform: translateY(-2px); box-shadow: 0 12px 22px rgba(166, 58, 74, .28); }
        .btn-outline-brand { color: var(--ink); border-color: var(--line); background: var(--white); }
        .btn-outline-brand:hover { color: var(--wine); border-color: var(--wine); background: var(--rose); transform: translateY(-2px); }
        .category-nav { padding-bottom: 16px; }
        .nav-chips {
            display: flex;
            gap: 9px;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-chips::-webkit-scrollbar { display: none; }
        .nav-chip {
            flex: 0 0 auto;
            padding: 7px 16px;
            border: 1px solid var(--line);
            border-radius: 999px;
            background: var(--warm);
            color: var(--muted);
            font-size: 14px;
            font-weight: 700;
        }
        .nav-chip:hover { color: var(--wine); border-color: var(--wine); background: var(--rose); }
        .nav-chip.active { color: #fffaf8; border-color: var(--ink); background: var(--ink); }

        .hero {
            position: relative;
            padding: 76px 0 84px;
            color: #fffaf8;
            background:
                linear-gradient(90deg, rgba(33, 25, 29, .98) 0%, rgba(33, 25, 29, .94) 45%, rgba(33, 25, 29, .78) 100%),
                url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1800&q=85") center/cover;
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            width: 1px;
            height: 180px;
            right: 14%;
            top: 0;
            background: rgba(255,255,255,.12);
            transform: rotate(28deg);
        }
        .eyebrow, .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--copper);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: 0;
        }
        .eyebrow::before, .section-kicker::before {
            content: "";
            width: 24px;
            height: 2px;
            background: currentColor;
        }
        .hero h1 {
            max-width: 700px;
            margin: 17px 0 18px;
            font-size: clamp(2.2rem, 5vw, 3.65rem);
            line-height: 1.18;
            font-weight: 800;
        }
        .hero-lead {
            max-width: 640px;
            margin-bottom: 28px;
            color: rgba(255,250,248,.76);
            font-size: 17px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
        .hero .btn-outline-brand { color: #fffaf8; border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.06); }
        .hero .btn-outline-brand:hover { color: #fff; border-color: var(--copper); background: rgba(196,122,69,.15); }
        .hero-panel {
            position: relative;
            z-index: 1;
            padding: 26px;
            border: 1px solid rgba(255,255,255,.15);
            border-radius: var(--radius-lg);
            background: rgba(255,255,255,.08);
            box-shadow: var(--shadow-dark);
            backdrop-filter: blur(10px);
        }
        .status-row { display: flex; justify-content: space-between; gap: 15px; align-items: center; margin-bottom: 22px; }
        .status-label { color: rgba(255,255,255,.65); font-size: 13px; }
        .status-badge { color: #ffe8db; background: rgba(196,122,69,.2); border: 1px solid rgba(196,122,69,.5); padding: 5px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
        .status-ring {
            width: 104px;
            height: 104px;
            margin: 0 auto 22px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            background: conic-gradient(var(--copper) 0 82%, rgba(255,255,255,.13) 82% 100%);
            position: relative;
        }
        .status-ring::before { content: ""; position: absolute; inset: 9px; border-radius: 50%; background: var(--ink-soft); }
        .status-ring strong { position: relative; z-index: 1; font-size: 24px; }
        .panel-title { margin: 0 0 7px; font-size: 19px; font-weight: 800; }
        .panel-copy { margin: 0; color: rgba(255,255,255,.68); font-size: 14px; line-height: 1.65; }
        .signal-list { display: grid; gap: 11px; margin-top: 23px; }
        .signal-item { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.78); font-size: 13px; }
        .signal-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--copper); box-shadow: 0 0 0 5px rgba(196,122,69,.12); }

        .section { padding: 84px 0; }
        .section-heading { max-width: 680px; margin-bottom: 36px; }
        .section-heading h2 { margin: 12px 0 10px; font-size: clamp(1.8rem, 3vw, 2.45rem); line-height: 1.25; font-weight: 800; }
        .section-heading p { margin: 0; color: var(--muted); }
        .filter-bar { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: none; }
        .filter-bar::-webkit-scrollbar { display: none; }
        .filter-chip {
            flex: 0 0 auto;
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 8px 15px;
            color: var(--muted);
            background: var(--white);
            font-size: 13px;
            font-weight: 700;
        }
        .filter-chip:hover, .filter-chip.active { color: var(--wine); border-color: var(--wine); background: var(--rose); }
        .guide-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 24px; margin-top: 28px; }
        .guide-list { display: grid; gap: 15px; }
        .guide-item, .side-card, .faq-wrap {
            border: 1px solid rgba(80,45,52,.12);
            border-radius: var(--radius-md);
            background: var(--white);
            box-shadow: 0 8px 25px rgba(36,22,26,.045);
        }
        .guide-item {
            display: grid;
            grid-template-columns: 58px 1fr auto;
            gap: 17px;
            align-items: center;
            padding: 21px;
        }
        .guide-item:hover, .side-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
        .guide-index {
            width: 50px;
            height: 50px;
            display: grid;
            place-items: center;
            border-radius: 14px;
            color: var(--wine);
            background: var(--rose);
            font-weight: 800;
            font-size: 18px;
        }
        .guide-item h3 { margin: 0 0 5px; font-size: 18px; line-height: 1.35; }
        .guide-item p { margin: 0 0 9px; color: var(--muted); font-size: 14px; line-height: 1.6; }
        .tag-row { display: flex; flex-wrap: wrap; gap: 7px; }
        .tag { display: inline-flex; padding: 3px 9px; border-radius: 999px; background: var(--warm); color: var(--muted); font-size: 11px; font-weight: 700; }
        .tag.accent { color: var(--wine); background: var(--rose); }
        .text-link { color: var(--wine); white-space: nowrap; font-weight: 800; font-size: 13px; }
        .side-stack { display: grid; gap: 17px; align-content: start; }
        .side-card { padding: 23px; transition: .25s ease; }
        .side-card.dark { color: #fffaf8; background: var(--ink); }
        .side-card h3 { margin: 0 0 13px; font-size: 18px; }
        .side-card p { color: var(--muted); margin: 0; font-size: 14px; }
        .side-card.dark p { color: rgba(255,255,255,.68); }
        .check-list { display: grid; gap: 11px; margin: 0; padding: 0; list-style: none; }
        .check-list li { position: relative; padding-left: 25px; color: var(--muted); font-size: 14px; }
        .check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--copper); font-weight: 800; }
        .state-line { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.72); font-size: 13px; }
        .state-line:last-child { border-bottom: 0; }
        .state-line strong { color: #fffaf8; }

        .faq-section { background: var(--warm); }
        .faq-wrap { overflow: hidden; }
        .accordion-item { border: 0; border-bottom: 1px solid var(--line); background: transparent; }
        .accordion-item:last-child { border-bottom: 0; }
        .accordion-button { padding: 20px 23px; color: var(--ink); background: var(--white); box-shadow: none !important; font-weight: 800; }
        .accordion-button:not(.collapsed) { color: var(--wine); background: #fffaf8; }
        .accordion-button::after { filter: sepia(1) saturate(3); }
        .accordion-body { padding: 0 23px 21px; color: var(--muted); background: #fffaf8; font-size: 15px; }

        .cta-band { padding: 72px 0; color: #fffaf8; background: var(--ink); }
        .cta-band h2 { margin: 0 0 10px; font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800; }
        .cta-band p { max-width: 640px; margin: 0; color: rgba(255,255,255,.68); }
        .cta-actions { display: flex; justify-content: flex-end; align-items: center; flex-wrap: wrap; gap: 11px; }
        .cta-band .btn-outline-brand { color: #fffaf8; border-color: rgba(255,255,255,.3); background: transparent; }
        .cta-note { width: 100%; margin-top: 11px; color: rgba(255,255,255,.48); font-size: 12px; text-align: right; }

        .site-footer { padding: 58px 0 24px; color: #fffaf8; background: #171316; }
        .footer-grid { display: grid; grid-template-columns: 1.6fr .8fr .9fr; gap: 44px; padding-bottom: 43px; }
        .site-footer .brand-name { color: #fffaf8; }
        .site-footer .brand-sub { color: rgba(255,255,255,.5); }
        .footer-copy { max-width: 440px; margin: 20px 0 0; color: rgba(255,255,255,.56); font-size: 13px; }
        .footer-title { margin-bottom: 13px; color: var(--copper); font-size: 13px; font-weight: 800; }
        .footer-links { display: grid; gap: 8px; color: rgba(255,255,255,.64); font-size: 13px; }
        .footer-links a:hover { color: #f0b08c; }
        .footer-bottom { display: flex; justify-content: space-between; gap: 18px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.42); font-size: 12px; }

        @media (max-width: 991.98px) {
            .header-main { min-height: 74px; }
            .hero { padding: 60px 0 66px; }
            .guide-layout { grid-template-columns: 1fr; }
            .side-stack { grid-template-columns: repeat(2, 1fr); }
            .cta-actions { justify-content: flex-start; margin-top: 25px; }
            .cta-note { text-align: left; }
        }
        @media (max-width: 767.98px) {
            .header-main { gap: 12px; }
            .brand-symbol { width: 36px; height: 36px; flex-basis: 36px; border-radius: 11px; }
            .brand-symbol::before { left: 9px; top: 10px; }
            .brand-symbol::after { left: 9px; top: 20px; }
            .brand-name { font-size: 14px; }
            .brand-sub { font-size: 10px; }
            .header-action .btn-brand { min-height: 40px; padding: 0 11px; font-size: 12px; }
            .hero { padding: 50px 0 54px; }
            .hero h1 { font-size: 2.1rem; }
            .hero-lead { font-size: 15px; }
            .hero-panel { margin-top: 35px; }
            .section { padding: 56px 0; }
            .guide-item { grid-template-columns: 44px 1fr; padding: 17px; gap: 13px; }
            .guide-index { width: 42px; height: 42px; font-size: 15px; }
            .guide-item .text-link { grid-column: 2; }
            .side-stack { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; gap: 5px; }
        }
        @media (max-width: 420px) {
            .header-action .btn-brand span { display: none; }
            .hero h1 { font-size: 1.9rem; }
            .hero-actions, .cta-actions { align-items: stretch; flex-direction: column; }
            .hero-actions a, .cta-actions a { width: 100%; }
            .guide-item h3 { font-size: 16px; }
        }

/* roulang page: category2 */
:root {
      --ink: #171316;
      --ink-soft: #2a2025;
      --wine: #a63a4a;
      --wine-dark: #842d3a;
      --berry: #d86a7d;
      --copper: #c47a45;
      --paper: #fbf8f5;
      --paper-2: #f7f2ef;
      --card: #ffffff;
      --muted: #74656a;
      --muted-2: #9a8b90;
      --line: rgba(80, 45, 52, .14);
      --line-dark: rgba(255, 255, 255, .13);
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 24px;
      --shadow: 0 18px 45px rgba(36, 22, 26, .10);
      --shadow-hover: 0 22px 54px rgba(36, 22, 26, .16);
      --shadow-dark: 0 16px 36px rgba(0, 0, 0, .28);
      --container: 1200px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color: var(--ink);
      background: var(--paper);
      line-height: 1.75;
      overflow-x: hidden;
      text-rendering: optimizeLegibility;
    }

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

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    .accordion-button:focus-visible {
      outline: 3px solid rgba(216, 106, 125, .36);
      outline-offset: 3px;
      box-shadow: none;
    }

    .container {
      max-width: var(--container);
      padding-left: 22px;
      padding-right: 22px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(251, 248, 245, .92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 8px 24px rgba(36, 22, 26, .06);
    }

    .header-main {
      min-height: 74px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
      padding: 12px 0 8px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }

    .brand-symbol {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      flex: 0 0 auto;
      background:
        linear-gradient(135deg, rgba(255,255,255,.22), rgba(255,255,255,0) 42%),
        radial-gradient(circle at 72% 26%, var(--copper) 0 10%, transparent 11%),
        linear-gradient(135deg, var(--wine), var(--ink));
      position: relative;
      box-shadow: 0 12px 28px rgba(166, 58, 74, .28);
    }

    .brand-symbol::before {
      content: "";
      position: absolute;
      left: 14px;
      top: 11px;
      width: 0;
      height: 0;
      border-top: 10px solid transparent;
      border-bottom: 10px solid transparent;
      border-left: 15px solid rgba(255, 248, 242, .92);
      filter: drop-shadow(0 2px 4px rgba(0,0,0,.22));
    }

    .brand-symbol::after {
      content: "";
      position: absolute;
      inset: 7px;
      border: 1px solid rgba(255,255,255,.28);
      border-radius: 10px;
    }

    .brand-name {
      display: block;
      font-size: 18px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--ink);
      white-space: normal;
      word-break: keep-all;
    }

    .brand-sub {
      display: block;
      margin-top: 2px;
      font-size: 12px;
      color: var(--muted);
      line-height: 1.2;
    }

    .header-action {
      flex: 0 0 auto;
    }

    .btn-brand,
    .btn-strong,
    .btn-soft,
    .btn-outline {
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 13px;
      padding: 11px 18px;
      font-weight: 700;
      border: 1px solid transparent;
      transition: var(--ease);
      line-height: 1.25;
      text-align: center;
    }

    .btn-brand,
    .btn-strong {
      color: #fffaf7;
      background: var(--wine);
      box-shadow: 0 14px 30px rgba(166, 58, 74, .24);
    }

    .btn-brand:hover,
    .btn-strong:hover {
      color: #fff;
      background: var(--wine-dark);
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(166, 58, 74, .31);
    }

    .btn-soft {
      color: var(--ink);
      background: #fff;
      border-color: var(--line);
      box-shadow: 0 10px 24px rgba(36, 22, 26, .07);
    }

    .btn-soft:hover {
      border-color: rgba(166, 58, 74, .38);
      background: #fff7f5;
      color: var(--wine-dark);
      transform: translateY(-2px);
    }

    .btn-outline {
      color: #fffaf7;
      background: transparent;
      border-color: rgba(255, 255, 255, .28);
    }

    .btn-outline:hover {
      color: #fff;
      border-color: rgba(216, 106, 125, .68);
      background: rgba(216, 106, 125, .12);
      transform: translateY(-2px);
    }

    .category-nav {
      padding: 0 0 14px;
    }

    .nav-chips {
      display: flex;
      align-items: center;
      gap: 10px;
      overflow-x: auto;
      scrollbar-width: none;
      -webkit-overflow-scrolling: touch;
      padding-bottom: 2px;
    }

    .nav-chips::-webkit-scrollbar {
      display: none;
    }

    .nav-chip {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 9px 15px;
      border: 1px solid #e7dad4;
      border-radius: 999px;
      background: rgba(255, 255, 255, .74);
      color: var(--ink-soft);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
    }

    .nav-chip:hover {
      color: var(--wine-dark);
      border-color: rgba(166, 58, 74, .42);
      background: #fff7f5;
      transform: translateY(-1px);
    }

    .nav-chip.active {
      color: #fffaf7;
      border-color: var(--wine);
      background: var(--wine);
      box-shadow: 0 10px 24px rgba(166, 58, 74, .22);
    }

    main {
      background:
        linear-gradient(180deg, rgba(33, 25, 29, .04), rgba(251, 248, 245, 0) 340px),
        var(--paper);
    }

    .section {
      padding: 82px 0;
    }

    .section-compact {
      padding: 58px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--wine-dark);
      background: #fff0ed;
      border: 1px solid rgba(166, 58, 74, .16);
      border-radius: 999px;
      padding: 7px 12px;
      font-size: 13px;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 16px;
    }

    .eyebrow.dark {
      color: #ffe5df;
      background: rgba(255, 255, 255, .09);
      border-color: rgba(255, 255, 255, .14);
    }

    .hero {
      position: relative;
      overflow: hidden;
      color: #fffaf7;
      background:
        linear-gradient(115deg, rgba(23, 19, 22, .98), rgba(42, 28, 34, .94) 54%, rgba(93, 41, 51, .92)),
        radial-gradient(circle at 80% 20%, rgba(196, 122, 69, .36), transparent 34%);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: .26;
      background-image:
        linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
      background-size: 36px 36px;
      mask-image: linear-gradient(90deg, transparent, #000 16%, #000 86%, transparent);
      pointer-events: none;
    }

    .hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 86px;
      background: linear-gradient(180deg, transparent, rgba(251, 248, 245, .94));
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      padding: 74px 0 54px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 46px;
      align-items: center;
    }

    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }

    h1 {
      font-size: clamp(32px, 4.2vw, 54px);
      line-height: 1.16;
      font-weight: 800;
      letter-spacing: 0;
      margin-bottom: 20px;
    }

    h2 {
      font-size: clamp(25px, 3vw, 36px);
      line-height: 1.25;
      font-weight: 800;
      letter-spacing: 0;
      margin-bottom: 14px;
    }

    h3 {
      font-size: 20px;
      line-height: 1.35;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .lead {
      font-size: 18px;
      color: rgba(255, 250, 247, .78);
      margin-bottom: 26px;
      max-width: 680px;
    }

    .section-lead {
      font-size: 17px;
      color: var(--muted);
      max-width: 760px;
      margin-bottom: 0;
    }

    .hero-actions,
    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      margin-top: 28px;
    }

    .notice-line {
      margin-top: 18px;
      color: rgba(255, 250, 247, .65);
      font-size: 14px;
    }

    .banner-visual {
      min-height: 430px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(145deg, rgba(255,255,255,.12), rgba(255,255,255,.04)),
        linear-gradient(135deg, rgba(166, 58, 74, .28), rgba(196, 122, 69, .10));
      border: 1px solid rgba(255,255,255,.14);
      box-shadow: var(--shadow-dark);
      padding: 22px;
      position: relative;
      overflow: hidden;
    }

    .banner-visual::before {
      content: "";
      position: absolute;
      inset: 22px;
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 18px;
      pointer-events: none;
    }

    .visual-topbar {
      display: flex;
      gap: 8px;
      margin-bottom: 18px;
      position: relative;
      z-index: 1;
    }

    .visual-dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.28);
    }

    .visual-dot:nth-child(1) {
      background: var(--berry);
    }

    .visual-dot:nth-child(2) {
      background: var(--copper);
    }

    .compat-board {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .screen-card {
      min-height: 132px;
      border-radius: 18px;
      background: rgba(255, 250, 247, .10);
      border: 1px solid rgba(255, 255, 255, .14);
      padding: 18px;
      backdrop-filter: blur(10px);
    }

    .screen-card.wide {
      grid-column: 1 / -1;
      min-height: 136px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      align-items: center;
    }

    .screen-icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: rgba(255,255,255,.12);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 13px;
      color: #ffe7e1;
      font-weight: 900;
    }

    .screen-card h2,
    .screen-card h3 {
      color: #fffaf7;
      font-size: 17px;
      margin-bottom: 6px;
    }

    .screen-card p {
      color: rgba(255,250,247,.68);
      margin: 0;
      font-size: 14px;
      line-height: 1.65;
    }

    .bar-list {
      display: grid;
      gap: 9px;
    }

    .bar-item {
      height: 11px;
      border-radius: 999px;
      background: rgba(255,255,255,.14);
      overflow: hidden;
    }

    .bar-item span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--berry), var(--copper));
    }

    .stat-strip {
      position: relative;
      z-index: 2;
      transform: translateY(28px);
    }

    .strip-inner {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      padding: 16px;
      border-radius: 20px;
      background: rgba(255, 255, 255, .92);
      box-shadow: var(--shadow);
      border: 1px solid var(--line);
    }

    .strip-item {
      padding: 10px 12px;
    }

    .strip-label {
      display: block;
      color: var(--muted);
      font-size: 13px;
      margin-bottom: 4px;
    }

    .strip-value {
      color: var(--ink);
      font-size: 20px;
      font-weight: 800;
      line-height: 1.2;
    }

    .filter-band {
      background: var(--paper-2);
      border-bottom: 1px solid var(--line);
    }

    .filter-row {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      scrollbar-width: none;
      -webkit-overflow-scrolling: touch;
      padding: 18px 0;
    }

    .filter-row::-webkit-scrollbar {
      display: none;
    }

    .filter-chip {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 42px;
      padding: 8px 14px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: #fff;
      color: var(--ink-soft);
      font-weight: 700;
      font-size: 14px;
    }

    .filter-chip.active,
    .filter-chip:hover {
      background: var(--ink);
      color: #fffaf7;
      border-color: var(--ink);
    }

    .step-layout {
      display: grid;
      grid-template-columns: minmax(260px, 360px) 1fr;
      gap: 38px;
      align-items: start;
    }

    .sticky-note {
      position: sticky;
      top: 148px;
      border-radius: var(--radius-md);
      padding: 24px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .sticky-note p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .mini-list {
      display: grid;
      gap: 10px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .mini-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--ink-soft);
      font-size: 15px;
    }

    .mini-list li::before {
      content: "";
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--wine);
      margin-top: 10px;
      flex: 0 0 auto;
      box-shadow: 0 0 0 4px rgba(166, 58, 74, .10);
    }

    .timeline {
      display: grid;
      gap: 16px;
    }

    .step-card {
      display: grid;
      grid-template-columns: 72px 1fr auto;
      gap: 18px;
      align-items: start;
      padding: 22px;
      border-radius: var(--radius-md);
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: 0 12px 30px rgba(36, 22, 26, .06);
      transition: var(--ease);
    }

    .step-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(166, 58, 74, .24);
    }

    .step-num {
      width: 58px;
      height: 58px;
      border-radius: 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #fff0ed;
      color: var(--wine-dark);
      font-size: 20px;
      font-weight: 900;
      border: 1px solid rgba(166, 58, 74, .14);
    }

    .step-card p {
      color: var(--muted);
      margin: 0;
    }

    .status-badge,
    .tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      padding: 6px 10px;
      min-height: 30px;
      font-size: 12px;
      font-weight: 800;
      line-height: 1.2;
      white-space: nowrap;
    }

    .status-badge {
      color: #fffaf7;
      background: var(--ink);
    }

    .status-badge.required {
      background: var(--wine);
    }

    .status-badge.optional {
      color: var(--ink);
      background: #f4dfd4;
    }

    .tag {
      color: var(--wine-dark);
      background: #fff0ed;
      border: 1px solid rgba(166, 58, 74, .14);
    }

    .compare-section {
      background: #fff;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-top: 28px;
    }

    .compare-card {
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      background: var(--paper);
      overflow: hidden;
      box-shadow: 0 12px 28px rgba(36, 22, 26, .06);
    }

    .compare-head {
      padding: 22px;
      background: var(--ink);
      color: #fffaf7;
    }

    .compare-head.light {
      background: #fff0ed;
      color: var(--ink);
      border-bottom: 1px solid rgba(166, 58, 74, .12);
    }

    .compare-head h3 {
      margin: 0;
    }

    .check-list {
      display: grid;
      gap: 0;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .check-list li {
      display: grid;
      grid-template-columns: 26px 1fr;
      gap: 10px;
      padding: 16px 20px;
      border-top: 1px solid var(--line);
      color: var(--ink-soft);
    }

    .check-list li:first-child {
      border-top: 0;
    }

    .check-mark {
      width: 22px;
      height: 22px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(166, 58, 74, .10);
      color: var(--wine-dark);
      font-weight: 900;
      line-height: 1;
      margin-top: 2px;
    }

    .issue-grid {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 20px;
      margin-top: 28px;
      align-items: stretch;
    }

    .issue-feature {
      min-height: 100%;
      border-radius: var(--radius-lg);
      padding: 28px;
      background:
        linear-gradient(145deg, rgba(255,255,255,.78), rgba(255,255,255,.96)),
        linear-gradient(135deg, rgba(166, 58, 74, .10), rgba(196, 122, 69, .12));
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .issue-feature p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .issue-list {
      display: grid;
      gap: 12px;
    }

    .issue-item {
      border-radius: 16px;
      background: #fff;
      border: 1px solid var(--line);
      padding: 18px;
      transition: var(--ease);
    }

    .issue-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow);
      border-color: rgba(166, 58, 74, .22);
    }

    .issue-item h3 {
      font-size: 17px;
      margin-bottom: 6px;
    }

    .issue-item p {
      color: var(--muted);
      margin: 0;
      font-size: 15px;
    }

    .side-panel {
      border-radius: var(--radius-lg);
      background: var(--ink);
      color: #fffaf7;
      padding: 24px;
      box-shadow: var(--shadow-dark);
    }

    .side-panel p {
      color: rgba(255,250,247,.68);
      margin-bottom: 18px;
    }

    .device-strip {
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .device-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px;
      border-radius: 14px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.10);
    }

    .device-row span:first-child {
      font-weight: 700;
    }

    .device-row span:last-child {
      color: #ffd8d1;
      font-size: 13px;
      font-weight: 800;
    }

    .cta-band {
      background:
        linear-gradient(135deg, rgba(23,19,22,.98), rgba(56, 34, 40, .96)),
        radial-gradient(circle at 88% 20%, rgba(216, 106, 125, .24), transparent 30%);
      color: #fffaf7;
      position: relative;
      overflow: hidden;
    }

    .cta-band::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: .18;
      background-image: linear-gradient(90deg, rgba(255,255,255,.10) 1px, transparent 1px);
      background-size: 42px 42px;
      pointer-events: none;
    }

    .cta-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 30px;
      align-items: center;
    }

    .cta-grid p {
      color: rgba(255,250,247,.72);
      max-width: 720px;
      margin-bottom: 0;
    }

    .cta-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .faq-wrap {
      max-width: 920px;
      margin: 30px auto 0;
    }

    .accordion {
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      border: 1px solid var(--line);
      border-radius: 16px !important;
      overflow: hidden;
      background: #fff;
      box-shadow: 0 10px 26px rgba(36, 22, 26, .05);
    }

    .accordion-button {
      padding: 18px 20px;
      color: var(--ink);
      background: #fff;
      font-size: 17px;
      font-weight: 800;
      line-height: 1.45;
      box-shadow: none;
    }

    .accordion-button:not(.collapsed) {
      color: var(--wine-dark);
      background: #fff4f1;
      box-shadow: inset 4px 0 0 var(--wine);
    }

    .accordion-button::after {
      width: 18px;
      height: 18px;
      background-size: 18px;
      filter: grayscale(1);
    }

    .accordion-body {
      padding: 0 20px 20px 24px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.75;
      background: #fff;
    }

    .site-footer {
      background: var(--ink);
      color: rgba(255, 250, 247, .72);
      padding: 58px 0 26px;
    }

    .site-footer .brand-name {
      color: #fffaf7;
    }

    .site-footer .brand-sub {
      color: rgba(255,250,247,.56);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(260px, 1.25fr) .7fr .7fr;
      gap: 34px;
      align-items: start;
    }

    .footer-copy {
      max-width: 520px;
      margin: 18px 0 0;
      color: rgba(255,250,247,.62);
      font-size: 15px;
      line-height: 1.8;
    }

    .footer-title {
      color: #fffaf7;
      font-size: 15px;
      font-weight: 800;
      margin-bottom: 13px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 250, 247, .62);
      font-size: 15px;
    }

    .footer-links a:hover {
      color: #ffd4c7;
      transform: translateX(2px);
    }

    .footer-bottom {
      margin-top: 36px;
      padding-top: 20px;
      border-top: 1px solid var(--line-dark);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: rgba(255,250,247,.52);
      font-size: 14px;
    }

    @media (max-width: 1199px) {
      .hero-grid,
      .step-layout,
      .issue-grid {
        gap: 28px;
      }

      .banner-visual {
        min-height: 400px;
      }
    }

    @media (max-width: 991px) {
      .section {
        padding: 64px 0;
      }

      .hero-inner {
        padding: 56px 0 44px;
      }

      .hero-grid,
      .step-layout,
      .issue-grid,
      .cta-grid {
        grid-template-columns: 1fr;
      }

      .sticky-note {
        position: static;
      }

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

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

      .cta-links {
        justify-content: flex-start;
      }

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

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 767px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .header-main {
        min-height: 66px;
        gap: 12px;
      }

      .brand-symbol {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

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

      .brand-sub {
        display: none;
      }

      .header-action .btn-brand {
        min-height: 42px;
        padding: 9px 12px;
        font-size: 13px;
      }

      .category-nav {
        padding-bottom: 10px;
      }

      .nav-chip {
        min-height: 38px;
        padding: 8px 13px;
      }

      .section {
        padding: 52px 0;
      }

      .section-compact {
        padding: 42px 0;
      }

      .lead {
        font-size: 16px;
      }

      .hero-actions,
      .cta-actions,
      .cta-links {
        flex-direction: column;
        align-items: stretch;
      }

      .btn-brand,
      .btn-strong,
      .btn-soft,
      .btn-outline {
        width: 100%;
        min-height: 48px;
      }

      .banner-visual {
        min-height: auto;
        padding: 16px;
        border-radius: 20px;
      }

      .compat-board {
        grid-template-columns: 1fr;
      }

      .screen-card.wide {
        grid-column: auto;
        grid-template-columns: 1fr;
      }

      .stat-strip {
        transform: translateY(18px);
      }

      .strip-inner {
        grid-template-columns: 1fr;
        padding: 12px;
      }

      .step-card {
        grid-template-columns: 54px 1fr;
      }

      .step-card .status-badge {
        grid-column: 2;
        justify-self: start;
      }

      .step-num {
        width: 48px;
        height: 48px;
        border-radius: 15px;
        font-size: 18px;
      }

      .compare-head,
      .issue-feature,
      .side-panel {
        padding: 22px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 26px;
      }

      .footer-bottom {
        display: grid;
        gap: 8px;
      }
    }

    @media (max-width: 420px) {
      h1 {
        font-size: 31px;
        word-break: keep-all;
      }

      .brand-name {
        max-width: 178px;
        line-height: 1.28;
      }

      .header-action .btn-brand span {
        display: none;
      }

      .step-card {
        padding: 18px;
        gap: 12px;
      }

      .check-list li {
        padding: 14px 16px;
      }

      .filter-chip,
      .nav-chip {
        font-size: 13px;
      }
    }