/* roulang page: index */
:root {
      --bg: #070b16;
      --bg-2: #0b1220;
      --bg-3: #10192c;
      --surface: #151e34;
      --surface-2: #1b2640;
      --indigo: #4f46e5;
      --indigo-2: #6366f1;
      --indigo-deep: #312e81;
      --cyan: #38bdf8;
      --blue: #2563eb;
      --text: #e8eefc;
      --muted: #93a0c2;
      --faint: #6d7a9c;
      --line: rgba(148, 163, 184, 0.16);
      --line-strong: rgba(99, 102, 241, 0.38);
      --radius: 18px;
      --radius-sm: 12px;
      --radius-pill: 999px;
      --shadow: 0 22px 50px rgba(2, 6, 23, 0.45);
      --shadow-sm: 0 10px 24px rgba(2, 6, 23, 0.28);
      --space: 28px;
      --max: 1180px;
      --header-h: 122px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--bg);
      color: var(--text);
      font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      min-height: 100vh;
    }
    img { max-width: 100%; display: block; border: 0; }
    a { color: inherit; text-decoration: none; transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease; }
    button, input { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { color: #fff; letter-spacing: .01em; line-height: 1.25; margin: 0 0 .6em; }
    p { margin: 0 0 1em; color: var(--muted); }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
    .grid-container { max-width: var(--max); padding-left: 20px; padding-right: 20px; }
    .aha-wrap { overflow-x: hidden; }
    .aha-header {
      position: sticky;
      top: 0;
      z-index: 80;
      background: rgba(7, 11, 22, 0.88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
    }
    .aha-nav-top {
      display: flex;
      align-items: center;
      gap: 16px;
      min-height: 68px;
    }
    .aha-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
      font-weight: 900;
      font-size: 22px;
      color: #fff;
      letter-spacing: .04em;
    }
    .aha-logo-mark {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: linear-gradient(145deg, var(--indigo-2), var(--blue));
      box-shadow: 0 8px 20px rgba(79, 70, 229, .35);
      color: #fff;
      font-size: 14px;
    }
    .aha-search {
      flex: 1;
      position: relative;
      min-width: 0;
    }
    .aha-search input {
      width: 100%;
      height: 44px;
      border: 1px solid var(--line);
      background: rgba(15, 23, 42, .75);
      color: var(--text);
      border-radius: var(--radius-pill);
      padding: 0 44px 0 44px;
      margin: 0;
      box-shadow: none;
    }
    .aha-search input:focus { border-color: var(--indigo-2); background: #0f172a; }
    .aha-search i {
      position: absolute;
      left: 16px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--faint);
    }
    .aha-top-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .aha-menu-btn {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      background: var(--surface);
      color: #fff;
      border-radius: 12px;
    }
    .aha-channels {
      display: flex;
      gap: 8px;
      overflow-x: auto;
      padding: 0 0 12px;
      scrollbar-width: none;
    }
    .aha-channels::-webkit-scrollbar { display: none; }
    .aha-tab {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      border-radius: var(--radius-pill);
      color: var(--muted);
      background: transparent;
      border: 1px solid transparent;
      white-space: nowrap;
      font-size: 14px;
      font-weight: 500;
    }
    .aha-tab:hover { color: #fff; background: rgba(99, 102, 241, .12); }
    .aha-tab.is-active {
      color: #fff;
      background: linear-gradient(135deg, var(--indigo), var(--blue));
      box-shadow: 0 8px 18px rgba(37, 99, 235, .28);
    }
    .aha-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 18px;
      border-radius: var(--radius-pill);
      border: 1px solid transparent;
      font-weight: 700;
      font-size: 14px;
      line-height: 1;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
    }
    .aha-btn:hover { transform: translateY(-1px); }
    .aha-btn:active { transform: translateY(0); }
    .aha-btn-primary {
      background: linear-gradient(135deg, var(--indigo), var(--blue));
      color: #fff;
      box-shadow: 0 10px 24px rgba(79, 70, 229, .32);
    }
    .aha-btn-ghost {
      background: rgba(15, 23, 42, .5);
      color: #fff;
      border-color: var(--line);
    }
    .aha-btn-ghost:hover { border-color: var(--indigo-2); }
    .aha-btn-lg { min-height: 52px; padding: 0 24px; font-size: 15px; }
    .aha-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 12px;
      border-radius: var(--radius-pill);
      background: rgba(99, 102, 241, .16);
      color: #c7d2fe;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .08em;
    }
    .aha-hero {
      position: relative;
      min-height: 86vh;
      display: flex;
      align-items: flex-end;
      padding: 70px 0 56px;
      background:
        radial-gradient(1200px 480px at 80% 10%, rgba(79, 70, 229, .28), transparent 60%),
        radial-gradient(900px 500px at 10% 90%, rgba(37, 99, 235, .18), transparent 55%),
        linear-gradient(180deg, rgba(7, 11, 22, .25), rgba(7, 11, 22, .88)),
        url("https://placehold.co/1920x980/0b1220/4f46e5?text=AHA+Network") center/cover no-repeat;
    }
    .aha-hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0 0;
      height: 120px;
      background: linear-gradient(180deg, transparent, var(--bg));
      pointer-events: none;
    }
    .aha-hero-copy { position: relative; z-index: 2; max-width: 760px; }
    .aha-hero h1 {
      font-size: clamp(32px, 5vw, 56px);
      font-weight: 900;
      margin: 14px 0 18px;
    }
    .aha-hero-lead {
      font-size: 17px;
      line-height: 1.9;
      color: #c9d4ee;
      max-width: 720px;
    }
    .aha-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .aha-marquee {
      overflow: hidden;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      background: linear-gradient(90deg, rgba(79,70,229,.12), rgba(7,11,22,.9) 18%, rgba(7,11,22,.9) 82%, rgba(37,99,235,.12));
      padding: 14px 0;
    }
    .aha-marquee-track {
      display: flex;
      gap: 12px;
      width: max-content;
      animation: aha-marquee 32s linear infinite;
    }
    .aha-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 14px;
      border-radius: var(--radius-pill);
      background: var(--surface);
      border: 1px solid var(--line);
      color: #dbe4ff;
      white-space: nowrap;
      font-size: 13px;
      box-shadow: 0 0 18px rgba(99, 102, 241, .08);
    }
    .aha-chip i { color: var(--cyan); }
    @keyframes aha-marquee {
      from { transform: translateX(0); }
      to { transform: translateX(-50%); }
    }
    main section { position: relative; }
    .aha-section {
      padding: 78px 0;
    }
    .aha-section-alt {
      background: linear-gradient(180deg, var(--bg-2), var(--bg));
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }
    .aha-section-soft { background: var(--bg-3); }
    .aha-kicker {
      color: var(--cyan);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .12em;
      margin-bottom: 10px;
    }
    .aha-h2 { font-size: clamp(26px, 3.2vw, 36px); max-width: 820px; }
    .aha-lead { max-width: 760px; font-size: 16px; line-height: 1.9; }
    .aha-card {
      background: linear-gradient(180deg, rgba(27, 38, 64, .92), rgba(15, 23, 42, .92));
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      padding: 24px;
      height: 100%;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }
    .aha-card:hover {
      transform: translateY(-4px);
      border-color: var(--line-strong);
      box-shadow: var(--shadow);
    }
    .aha-icon {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: rgba(79, 70, 229, .16);
      color: #c7d2fe;
      margin-bottom: 14px;
      font-size: 18px;
    }
    .aha-card h3 { font-size: 18px; margin-bottom: 8px; }
    .aha-card p { margin: 0; font-size: 14px; line-height: 1.75; }
    .aha-summary {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 12px;
      margin-top: 28px;
    }
    .aha-summary article {
      padding: 18px 16px;
      border-radius: 16px;
      background: var(--surface);
      border: 1px solid var(--line);
      min-height: 148px;
    }
    .aha-summary b { display: block; color: #fff; margin: 8px 0 6px; font-size: 15px; }
    .aha-summary span { color: var(--muted); font-size: 13px; line-height: 1.7; }
    .aha-search-panel {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 24px;
      padding: 28px;
      box-shadow: var(--shadow);
    }
    .aha-search-panel form { display: flex; gap: 10px; }
    .aha-search-panel input {
      flex: 1;
      height: 54px;
      margin: 0;
      border-radius: 16px;
      border: 1px solid var(--line);
      background: #0b1220;
      color: #fff;
      padding: 0 18px;
    }
    .aha-quick {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }
    .aha-quick a {
      padding: 7px 12px;
      border-radius: var(--radius-pill);
      background: #0b1220;
      border: 1px solid var(--line);
      color: var(--muted);
      font-size: 13px;
    }
    .aha-quick a:hover { color: #fff; border-color: var(--indigo-2); }
    .aha-bento {
      display: grid;
      grid-template-columns: 1.3fr .7fr;
      gap: 16px;
    }
    .aha-bento-stack { display: grid; gap: 16px; }
    .aha-pain-item { padding: 22px; }
    .aha-matrix {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .aha-scenes {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      grid-template-rows: auto auto;
      gap: 14px;
    }
    .aha-scenes article:first-child { grid-row: 1 / span 2; }
    .aha-list {
      display: grid;
      gap: 12px;
    }
    .aha-list-row {
      display: grid;
      grid-template-columns: 56px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 16px 18px;
      border-radius: 16px;
      background: var(--surface);
      border: 1px solid var(--line);
    }
    .aha-list-row:hover { border-color: var(--line-strong); }
    .aha-num {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: rgba(37, 99, 235, .16);
      color: #bfdbfe;
      font-weight: 800;
    }
    .aha-list-row h3 { margin: 0 0 4px; font-size: 16px; }
    .aha-list-row p { margin: 0; font-size: 13px; }
    .aha-meta { color: var(--cyan); font-size: 13px; font-weight: 700; white-space: nowrap; }
    .aha-steps {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      counter-reset: step;
    }
    .aha-steps article {
      position: relative;
      padding: 28px 24px 24px;
    }
    .aha-steps article::before {
      counter-increment: step;
      content: counter(step);
      position: absolute;
      top: -12px;
      right: 18px;
      font-size: 42px;
      font-weight: 900;
      color: rgba(99, 102, 241, .22);
    }
    .aha-orbit-wrap {
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid var(--line);
      background: #000;
      box-shadow: var(--shadow);
    }
    .orbit-caption {
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 16px;
      background: rgba(7, 11, 22, .78);
      border-radius: 14px;
      padding: 12px 16px;
      color: #fff;
    }
    .orbit-previous, .orbit-next {
      background: rgba(15, 23, 42, .7) !important;
      border-radius: 50%;
    }
    .aha-node-layout {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 22px;
      align-items: stretch;
    }
    .aha-node-pic {
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid var(--line);
      min-height: 360px;
      background: #0b1220;
    }
    .aha-node-pic img { width: 100%; height: 100%; object-fit: cover; }
    .aha-timeline { display: grid; gap: 0; }
    .aha-tl-item {
      display: grid;
      grid-template-columns: 120px 18px 1fr;
      gap: 16px;
      padding: 0 0 26px;
    }
    .aha-tl-item time { color: var(--cyan); font-size: 13px; font-weight: 700; padding-top: 2px; }
    .aha-tl-item i {
      width: 12px;
      height: 12px;
      margin-top: 8px;
      border-radius: 50%;
      background: var(--indigo-2);
      box-shadow: 0 0 0 6px rgba(99, 102, 241, .15);
      justify-self: center;
    }
    .aha-tl-item div {
      padding: 16px 18px;
      border-radius: 16px;
      background: var(--surface);
      border: 1px solid var(--line);
    }
    .aha-rank { display: grid; gap: 8px; }
    .aha-rank-row {
      display: grid;
      grid-template-columns: 48px 1.2fr .8fr .6fr .5fr;
      gap: 10px;
      align-items: center;
      padding: 14px 16px;
      border-radius: 14px;
      background: var(--surface);
      border: 1px solid var(--line);
      font-size: 14px;
    }
    .aha-rank-row strong { color: #fff; }
    .aha-bar {
      height: 8px;
      border-radius: 99px;
      background: #0b1220;
      overflow: hidden;
    }
    .aha-bar span {
      display: block;
      height: 100%;
      background: linear-gradient(90deg, var(--indigo), var(--cyan));
    }
    .aha-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .aha-stat {
      padding: 26px 20px;
      border-radius: 20px;
      background: linear-gradient(180deg, #1a2450, #121a33);
      border: 1px solid var(--line);
      text-align: left;
    }
    .aha-stat b {
      display: block;
      font-size: 34px;
      color: #fff;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .aha-quotes {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 14px;
    }
    .aha-quote {
      padding: 26px;
      border-radius: 22px;
    }
    .aha-quote p { color: #d5def4; font-size: 15px; }
    .aha-user { display: flex; gap: 10px; align-items: center; margin-top: 18px; color: var(--muted); font-size: 13px; }
    .aha-avatar {
      width: 36px; height: 36px; border-radius: 50%;
      display: grid; place-items: center;
      background: var(--indigo-deep); color: #fff; font-weight: 800;
    }
    .aha-people {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .aha-res {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 18px;
    }
    .aha-doc {
      display: flex;
      gap: 14px;
      padding: 16px 0;
      border-bottom: 1px solid var(--line);
    }
    .aha-doc:last-child { border-bottom: 0; }
    .aha-news article {
      display: grid;
      grid-template-columns: 160px 1fr;
      gap: 18px;
      padding: 18px 0;
      border-bottom: 1px solid var(--line);
    }
    .aha-news img { width: 160px; height: 100px; object-fit: cover; border-radius: 14px; }
    .aha-price {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .aha-price article { padding: 26px 22px; position: relative; }
    .aha-price .hot {
      position: absolute;
      top: 14px;
      right: 14px;
      background: var(--indigo);
      color: #fff;
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 999px;
    }
    .aha-price .fee { font-size: 36px; color: #fff; font-weight: 900; margin: 10px 0; }
    .aha-price .fee small { font-size: 14px; color: var(--muted); font-weight: 500; }
    .aha-price ul { margin: 10px 0 0; }
    .aha-price li {
      padding: 7px 0 7px 22px;
      position: relative;
      color: var(--muted);
      font-size: 14px;
    }
    .aha-price li::before {
      content: "\f00c";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      left: 0;
      color: var(--cyan);
      font-size: 12px;
    }
    .aha-download {
      border-radius: 28px;
      padding: 42px 36px;
      background:
        radial-gradient(500px 180px at 90% 0%, rgba(56, 189, 248, .16), transparent),
        linear-gradient(135deg, #151c3b, #0c1228);
      border: 1px solid var(--line-strong);
      box-shadow: var(--shadow);
    }
    .aha-dl-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-top: 24px;
    }
    .aha-dl-grid a {
      display: flex;
      flex-direction: column;
      gap: 6px;
      padding: 18px;
      border-radius: 16px;
      background: rgba(7, 11, 22, .55);
      border: 1px solid var(--line);
      color: #fff;
    }
    .aha-dl-grid a:hover { border-color: var(--cyan); }
    .aha-dl-grid small { color: var(--muted); }
    .aha-risk {
      margin-top: 18px;
      padding: 14px 16px;
      border-radius: 14px;
      background: rgba(15, 23, 42, .7);
      color: var(--faint);
      font-size: 13px;
      border: 1px dashed rgba(148,163,184,.25);
    }
    .aha-fav {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 18px;
    }
    .aha-fav span {
      padding: 8px 12px;
      border-radius: 12px;
      background: #0b1220;
      border: 1px solid var(--line);
      color: #c9d4ee;
      font-size: 13px;
    }
    .aha-footer {
      padding: 48px 0 28px;
      background: #050814;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: 14px;
    }
    .aha-foot-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 24px;
      margin-bottom: 28px;
    }
    .aha-footer a:hover { color: #fff; }
    .aha-copy {
      padding-top: 18px;
      border-top: 1px solid var(--line);
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
      color: var(--faint);
      font-size: 13px;
    }
    .aha-mobile-panel {
      display: none;
      padding: 0 20px 16px;
    }
    .aha-mobile-panel.is-open { display: grid; gap: 8px; }
    @media (max-width: 1024px) {
      .aha-summary, .aha-matrix, .aha-price, .aha-stats, .aha-dl-grid { grid-template-columns: repeat(2, 1fr); }
      .aha-scenes, .aha-bento, .aha-node-layout, .aha-quotes, .aha-res, .aha-foot-grid { grid-template-columns: 1fr 1fr; }
      .aha-scenes article:first-child { grid-row: auto; }
      .aha-rank-row { grid-template-columns: 40px 1fr 80px; }
      .aha-rank-row span.hide-md { display: none; }
    }
    @media (max-width: 768px) {
      .aha-search { display: none; }
      .aha-menu-btn { display: inline-flex; align-items: center; justify-content: center; }
      .aha-hero { min-height: auto; padding: 46px 0 40px; align-items: center; }
      .aha-section { padding: 56px 0; }
      .aha-summary, .aha-matrix, .aha-steps, .aha-people, .aha-price, .aha-stats, .aha-dl-grid,
      .aha-scenes, .aha-bento, .aha-node-layout, .aha-quotes, .aha-res, .aha-foot-grid { grid-template-columns: 1fr; }
      .aha-list-row { grid-template-columns: 44px 1fr; }
      .aha-meta { grid-column: 2; }
      .aha-tl-item { grid-template-columns: 18px 1fr; }
      .aha-tl-item time { grid-column: 2; }
      .aha-news article { grid-template-columns: 1fr; }
      .aha-news img { width: 100%; height: 180px; }
      .aha-search-panel form { flex-direction: column; }
      .aha-download { padding: 28px 18px; }
    }
    @media (max-width: 520px) {
      .aha-logo span { font-size: 18px; }
      .aha-top-actions .aha-btn span { display: none; }
      .aha-summary, .aha-price, .aha-stats, .aha-dl-grid { grid-template-columns: 1fr; }
      .aha-hero-actions .aha-btn { width: 100%; }
      .aha-copy { flex-direction: column; }
    }