:root {
      --ink: #0c1218;
      --muted: #526070;
      --line: rgba(12, 18, 24, 0.1);
      --accent-deep: #0f766e;
      --danger: #ef4444;
      --ok: #34d399;
      --gold: #d4a017;
      --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      --font-accent: var(--font-display);
      --font-body: var(--font-display);
      --ease: cubic-bezier(0.22, 1, 0.36, 1);
      --safe-top: env(safe-area-inset-top, 0px);
      --safe-bottom: env(safe-area-inset-bottom, 0px);
      --z-nav: 30;
      --z-drawer: 50;
      --sidebar: 232px;
      --sidebar-collapsed: 76px;
      /* dark (default) */
      --dash-bg: #070a0e;
      --dash-sidebar: rgba(12, 16, 22, 0.42);
      --dash-panel: rgba(18, 23, 30, 0.78);
      --dash-elev: #1a1f27;
      --dash-line: rgba(255,255,255,.075);
      --dash-text: #f2f4f7;
      --dash-muted: #8a93a3;
      --dash-hover: rgba(255,255,255,.05);
      --dash-active: rgba(255,255,255,.08);
      --dash-input: rgba(0,0,0,.28);
      --dash-shadow: 0 24px 60px rgba(0,0,0,.35);
      --send-from: #14b8a6;
      --send-to: #0f766e;
      --chip-bg: rgba(255,255,255,.04);
      --prompt-border: rgba(255,255,255,.12);
      --feature-scrim: linear-gradient(180deg, transparent 28%, rgba(0,0,0,.78) 100%);
      --atm-a: rgba(20, 184, 166, 0.22);
      --atm-b: rgba(56, 189, 248, 0.12);
      --atm-c: rgba(212, 160, 23, 0.14);
      --atm-mesh: rgba(255, 255, 255, 0.035);
      --sidebar-edge: rgba(94, 234, 212, 0.08);
    }
    html[data-theme="light"] {
      --gold: #9a7410;
      --dash-bg: #eef3f6;
      --dash-sidebar: rgba(255, 255, 255, 0.48);
      --dash-panel: rgba(255, 255, 255, 0.86);
      --dash-elev: #e8eef2;
      --dash-line: rgba(15, 23, 32, 0.08);
      --dash-text: #121821;
      --dash-muted: #667585;
      --dash-hover: rgba(15, 23, 32, 0.04);
      --dash-active: rgba(15, 118, 110, 0.08);
      --dash-input: #f4f6f8;
      --dash-shadow: 0 18px 40px rgba(15, 23, 32, 0.08);
      --send-from: #0d9488;
      --send-to: #0f766e;
      --chip-bg: rgba(15, 23, 32, 0.03);
      --prompt-border: rgba(15, 23, 32, 0.1);
      --feature-scrim: linear-gradient(180deg, transparent 20%, rgba(10,14,20,.72) 100%);
      --ok: #059669;
      --danger: #dc2626;
      --atm-a: rgba(13, 148, 136, 0.16);
      --atm-b: rgba(14, 165, 233, 0.1);
      --atm-c: rgba(154, 116, 16, 0.12);
      --atm-mesh: rgba(15, 23, 32, 0.045);
      --sidebar-edge: rgba(15, 118, 110, 0.1);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { transition: background-color .35s var(--ease), color .25s var(--ease); }
    body {
      margin: 0; min-height: 100vh;
      color: var(--ink);
      font-family: var(--font-body);
      font-size: 16px; line-height: 1.65;
      background: #0a1016;
      overflow-x: hidden;
    }
    body.app-mode { background: var(--dash-bg); color: var(--dash-text); overflow: hidden; }
    a { color: inherit; text-decoration: none; }
    button, input, textarea, select { font: inherit; }
    button { cursor: pointer; }
    button:disabled { cursor: not-allowed; opacity: .6; }
    .hidden { display: none !important; }
    :focus-visible { outline: 2px solid #5eead4; outline-offset: 2px; }

    /* —— Landing —— */
    .landing-topbar {
      position: fixed; top: 0; left: 0; right: 0;
      z-index: var(--z-nav);
      padding: calc(8px + var(--safe-top)) 0 0;
      color: #fff;
      background: linear-gradient(180deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.2) 55%, transparent 100%);
      pointer-events: none;
    }
    .landing-topbar-inner {
      pointer-events: auto;
      display: flex; align-items: center; justify-content: space-between;
      gap: 16px;
      width: min(1120px, calc(100% - 40px));
      margin: 0 auto;
      padding: 18px 0 16px;
      border-bottom: 1px solid rgba(255,255,255,.14);
    }
    .landing-topbar .brand {
      display: flex; align-items: center; gap: 12px;
      font-family: var(--font-display); font-weight: 600;
      font-size: 16px; letter-spacing: .12em;
      color: #fff; text-decoration: none; min-height: 40px;
      text-transform: none;
    }
    .landing-topbar .brand span {
      opacity: .96;
    }
    .btn-nav-login {
      appearance: none;
      border: 0;
      background: transparent;
      color: rgba(255,255,255,.88);
      font: inherit;
      font-size: 13px;
      font-weight: 500;
      letter-spacing: .18em;
      padding: 8px 2px 10px;
      min-height: 40px;
      border-radius: 0;
      border-bottom: 1px solid rgba(255,255,255,.42);
      transition: color .25s ease, border-color .25s ease, letter-spacing .25s ease;
    }
    .btn-nav-login:hover {
      color: #fff;
      border-bottom-color: #5eead4;
      letter-spacing: .22em;
    }
    .brand-mark {
      width: 28px; height: 28px; border-radius: 0; flex-shrink: 0;
      background: linear-gradient(145deg, #5eead4 0%, #0f766e 55%, #134e4a 100%);
      position: relative; overflow: hidden;
    }
    .brand-mark::after {
      content: ""; position: absolute; inset: 7px;
      border: 1.5px solid rgba(255,255,255,.9); border-right-color: transparent;
      border-radius: 50%;
    }
    .brand-mark.has-logo {
      background: transparent;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.16);
    }
    .brand-mark.has-logo::after { display: none; }
    .brand-mark img {
      width: 100%; height: 100%; object-fit: cover; display: block;
    }
    .btn {
      border: 0; border-radius: 999px; min-height: 44px; padding: 10px 20px;
      font-weight: 600; transition: background .2s ease, color .2s ease, border-color .2s ease, opacity .2s ease, transform .25s var(--ease);
    }
    .btn-sm { min-height: 38px; padding: 8px 14px; font-size: 13px; }
    .btn-primary { background: #fff; color: var(--ink); }
    .btn-primary:hover:not(:disabled) { background: #f3f6f7; }
    .btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.4); }
    .btn-ghost:hover:not(:disabled) { background: rgba(255,255,255,.1); }
    .btn-ink { background: #111827; color: #fff; border-radius: 12px; }
    .btn-ink:hover:not(:disabled) { background: #1f2937; }
    .btn-line { background: #fff; color: var(--ink); border: 1px solid var(--line); border-radius: 12px; }
    .btn-gold { background: linear-gradient(135deg, #f6d365, #dda20a); color: #1a1405; border-radius: 999px; font-weight: 700; }

    .hero {
      position: relative; min-height: 100svh; display: grid; place-items: center;
      padding: calc(120px + var(--safe-top)) 24px calc(72px + var(--safe-bottom));
      overflow: hidden; color: #fff; text-align: center;
    }
    .hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; background: #071016; animation: slowZoom 28s var(--ease) infinite alternate; }
    .hero-visual {
      position: absolute; inset: 0; pointer-events: none;
      background:
        radial-gradient(ellipse 70% 55% at 50% 42%, rgba(15,118,110,.22), transparent 62%),
        linear-gradient(180deg, rgba(5,10,14,.55) 0%, rgba(5,10,14,.28) 40%, rgba(5,10,14,.72) 100%);
    }
    .hero-grain {
      position: absolute; inset: 0; pointer-events: none; opacity: .18; mix-blend-mode: overlay;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    }
    .hero-copy { position: relative; z-index: 1; width: min(900px, 100%); }
    .hero-anim {
      opacity: 0;
      animation: heroRise 1s var(--ease) calc(var(--d, 0) * .14s + .05s) both;
    }
    .hero-kicker {
      margin: 0 0 18px;
      font-size: 11px;
      font-weight: 500;
      letter-spacing: .42em;
      color: rgba(255,255,255,.62);
      text-indent: .42em;
    }
    .hero-brand {
      margin: 0 0 22px;
      font-family: var(--font-display);
      font-size: clamp(52px, 11vw, 104px);
      font-weight: 700;
      letter-spacing: .08em;
      line-height: 1.05;
      color: #fff;
      text-shadow: 0 12px 40px rgba(0,0,0,.45);
    }
    .hero-brand em {
      font-style: normal;
      font-weight: 700;
      letter-spacing: .1em;
      background: linear-gradient(120deg, #e7fffa 0%, #99f6e4 35%, #2dd4bf 100%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      filter: drop-shadow(0 8px 24px rgba(45,212,191,.28));
      animation: heroGlow 3.6s ease-in-out infinite;
    }
    .hero-rule {
      width: 0;
      height: 1px;
      margin: 0 auto 28px;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,.75), #5eead4, rgba(255,255,255,.75), transparent);
      animation: heroRule 1.05s var(--ease) .42s both;
      position: relative;
    }
    .hero-rule::after {
      content: "";
      position: absolute;
      left: 50%; top: 50%;
      width: 5px; height: 5px;
      margin: -2.5px 0 0 -2.5px;
      border-radius: 50%;
      background: #5eead4;
      box-shadow: 0 0 12px rgba(94,234,212,.8);
      opacity: 0;
      animation: heroDot .5s var(--ease) 1.1s both;
    }
    .hero-title {
      margin: 0 auto 16px;
      max-width: 18em;
      font-size: clamp(20px, 2.8vw, 30px);
      font-weight: 500;
      letter-spacing: .16em;
      line-height: 1.7;
      color: rgba(255,255,255,.94);
      text-shadow: 0 6px 24px rgba(0,0,0,.35);
    }
    .hero-title .hero-char {
      display: inline-block;
      opacity: 0;
      transform: translateY(18px);
      animation: heroChar .65s var(--ease) calc(var(--c, 0) * .032s + .55s) both;
    }
    .hero-title .hero-space { display: inline-block; width: .35em; }
    .hero-desc {
      margin: 0 auto 36px;
      max-width: 30em;
      color: rgba(255,255,255,.68);
      font-size: 14px;
      letter-spacing: .12em;
      line-height: 1.9;
    }
    .hero-desc .hero-line {
      display: inline-block;
      opacity: 0;
      animation: heroRise .85s var(--ease) calc(var(--l, 0) * .18s + .95s) both;
    }
    .hero-cta {
      display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
    }
    .hero-cta .btn {
      min-width: 140px;
      border-radius: 0;
      letter-spacing: .12em;
      font-weight: 500;
      font-size: 13px;
      backdrop-filter: blur(8px);
    }
    .hero-cta .btn-primary {
      background: #fff;
      color: #0b1218;
      box-shadow: 0 16px 40px rgba(0,0,0,.28);
    }
    .hero-cta .btn-ghost {
      border-color: rgba(255,255,255,.35);
    }
    .hero-cta .btn:hover {
      transform: translateY(-2px);
    }
    .landing-footer {
      position: absolute; left: 0; right: 0; bottom: calc(16px + var(--safe-bottom));
      z-index: 2; text-align: center; pointer-events: none;
    }
    .landing-footer a {
      pointer-events: auto;
      color: rgba(255,255,255,.55); font-size: 12px; letter-spacing: .02em;
      text-decoration: none;
    }
    .landing-footer a:hover { color: rgba(255,255,255,.85); }
    .site-icp {
      display: none; text-align: center; padding: 16px 12px 8px;
      color: var(--dash-muted); font-size: 12px;
    }
    .site-icp a { color: inherit; text-decoration: none; }
    .site-icp a:hover { color: var(--dash-text); }
    .site-icp.show { display: block; }
    @keyframes heroRise {
      from { opacity: 0; transform: translateY(28px); filter: blur(6px); }
      to { opacity: 1; transform: translateY(0); filter: blur(0); }
    }
    @keyframes heroChar {
      from { opacity: 0; transform: translateY(18px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes heroRule {
      from { width: 0; opacity: 0; }
      to { width: min(220px, 48vw); opacity: 1; }
    }
    @keyframes heroDot {
      from { opacity: 0; transform: scale(.4); }
      to { opacity: 1; transform: scale(1); }
    }
    @keyframes heroGlow {
      0%, 100% { filter: drop-shadow(0 8px 20px rgba(45,212,191,.22)); }
      50% { filter: drop-shadow(0 10px 32px rgba(94,234,212,.42)); }
    }
    @keyframes riseIn { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
    @keyframes slowZoom { from { transform: scale(1.02); } to { transform: scale(1.08); } }

    /* —— App shell —— */
    .app-shell {
      display: none;
      position: relative;
      isolation: isolate;
      height: 100svh;
      grid-template-columns: var(--sidebar) 1fr;
      transition: grid-template-columns .38s var(--ease);
      background:
        radial-gradient(1200px 600px at 85% -5%, var(--atm-a), transparent 58%),
        radial-gradient(900px 520px at -5% 15%, var(--atm-b), transparent 52%),
        radial-gradient(700px 480px at 55% 110%, var(--atm-c), transparent 55%),
        linear-gradient(165deg, #0a1016 0%, var(--dash-bg) 42%, #0b1218 100%);
      color: var(--dash-text);
      overflow: hidden;
    }
    html[data-theme="light"] .app-shell {
      background:
        radial-gradient(1100px 560px at 88% -8%, var(--atm-a), transparent 58%),
        radial-gradient(860px 500px at -8% 18%, var(--atm-b), transparent 52%),
        radial-gradient(640px 420px at 50% 108%, var(--atm-c), transparent 55%),
        linear-gradient(165deg, #f7fafb 0%, var(--dash-bg) 45%, #e8f0f2 100%);
    }
    body.app-mode .landing { display: none !important; }
    body.app-mode .app-shell { display: grid; }

    .app-atmosphere {
      position: absolute;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      overflow: hidden;
    }
    .app-bg-canvas {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      display: block;
      opacity: .95;
    }
    .app-orb {
      position: absolute;
      border-radius: 50%;
      filter: blur(42px);
      will-change: transform, opacity;
      animation: appOrbFloat 12s ease-in-out infinite alternate;
      mix-blend-mode: screen;
    }
    html[data-theme="light"] .app-orb { mix-blend-mode: multiply; }
    .app-orb-a {
      width: min(58vw, 620px); height: min(58vw, 620px);
      top: -18%; right: 2%;
      background: radial-gradient(circle, var(--atm-a) 0%, transparent 68%);
      opacity: 1;
    }
    .app-orb-b {
      width: min(48vw, 500px); height: min(48vw, 500px);
      left: 12%; bottom: -14%;
      background: radial-gradient(circle, var(--atm-b) 0%, transparent 68%);
      animation-duration: 15s;
      animation-delay: -3s;
      opacity: .95;
    }
    .app-orb-c {
      width: min(40vw, 420px); height: min(40vw, 420px);
      left: -10%; top: 22%;
      background: radial-gradient(circle, var(--atm-c) 0%, transparent 66%);
      animation-duration: 18s;
      animation-delay: -7s;
      opacity: .9;
    }
    .app-flow {
      position: absolute;
      left: -20%;
      top: 18%;
      width: 140%;
      height: 42%;
      background: linear-gradient(
        105deg,
        transparent 0%,
        rgba(20, 184, 166, 0.1) 28%,
        rgba(56, 189, 248, 0.08) 48%,
        rgba(212, 160, 23, 0.07) 62%,
        transparent 100%
      );
      filter: blur(28px);
      transform: skewY(-8deg);
      animation: appFlowDrift 14s ease-in-out infinite alternate;
      opacity: .85;
    }
    html[data-theme="light"] .app-flow {
      background: linear-gradient(
        105deg,
        transparent 0%,
        rgba(13, 148, 136, 0.1) 28%,
        rgba(14, 165, 233, 0.08) 48%,
        rgba(154, 116, 16, 0.07) 62%,
        transparent 100%
      );
    }
    .app-mesh {
      position: absolute; inset: -10%;
      background-image:
        linear-gradient(var(--atm-mesh) 1px, transparent 1px),
        linear-gradient(90deg, var(--atm-mesh) 1px, transparent 1px);
      background-size: 56px 56px;
      mask-image: radial-gradient(ellipse 75% 65% at 55% 35%, #000 20%, transparent 75%);
      -webkit-mask-image: radial-gradient(ellipse 75% 65% at 55% 35%, #000 20%, transparent 75%);
      opacity: .75;
      animation: appMeshDrift 28s linear infinite;
    }
    .app-grain {
      position: absolute; inset: 0;
      opacity: .045;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
      background-size: 180px 180px;
      mix-blend-mode: overlay;
      animation: appGrainShift 8s steps(4) infinite;
    }
    html[data-theme="light"] .app-grain { opacity: .03; mix-blend-mode: multiply; }
    @keyframes appOrbFloat {
      0% { transform: translate3d(0, 0, 0) scale(1); opacity: .75; }
      35% { transform: translate3d(8%, -10%, 0) scale(1.14); opacity: 1; }
      70% { transform: translate3d(-7%, 8%, 0) scale(0.9); opacity: .82; }
      100% { transform: translate3d(5%, 4%, 0) scale(1.06); opacity: .95; }
    }
    @keyframes appFlowDrift {
      0% { transform: skewY(-8deg) translate3d(-4%, 0, 0); opacity: .55; }
      100% { transform: skewY(-6deg) translate3d(6%, 6%, 0); opacity: .95; }
    }
    @keyframes appMeshDrift {
      0% { transform: translate3d(0, 0, 0); }
      100% { transform: translate3d(-56px, -56px, 0); }
    }
    @keyframes appGrainShift {
      0% { transform: translate(0, 0); }
      25% { transform: translate(-1%, 1%); }
      50% { transform: translate(1%, -1%); }
      75% { transform: translate(-1%, -1%); }
      100% { transform: translate(0, 0); }
    }
    @media (prefers-reduced-motion: reduce) {
      .app-orb, .app-flow, .app-mesh, .app-grain { animation: none; }
      .app-bg-canvas { display: none; }
    }

    .sidebar {
      position: relative;
      z-index: 2;
      display: flex; flex-direction: column;
      border-right: 1px solid rgba(255,255,255,.08);
      background:
        linear-gradient(180deg, var(--sidebar-edge), transparent 32%),
        var(--dash-sidebar);
      backdrop-filter: blur(28px) saturate(1.35);
      -webkit-backdrop-filter: blur(28px) saturate(1.35);
      padding: 14px 10px calc(16px + var(--safe-bottom));
      min-width: 0;
      width: 100%;
      box-shadow:
        1px 0 0 rgba(255,255,255,.03),
        8px 0 40px rgba(0,0,0,.12);
      transition: padding .3s var(--ease), background .3s ease;
    }
    html[data-theme="light"] .sidebar {
      border-right-color: rgba(15, 23, 32, 0.06);
      box-shadow: 1px 0 28px rgba(15, 23, 32, 0.05);
    }
    .side-brand {
      display: flex; align-items: center; gap: 10px;
      padding: 6px 8px 18px; font-family: var(--font-display); font-weight: 700; font-size: 16px;
      letter-spacing: -.02em;
      min-height: 48px;
    }
    .sideBrandName {
      flex: 1; min-width: 0;
      white-space: nowrap; overflow: hidden;
      transition: opacity .25s ease, max-width .3s var(--ease), margin .3s var(--ease);
      max-width: 140px;
    }
    .side-toggle {
      width: 34px; height: 34px; flex-shrink: 0; margin-left: auto;
      border-radius: 10px; border: 1px solid var(--dash-line);
      background: rgba(255,255,255,.04);
      color: var(--dash-muted);
      display: grid; place-items: center;
      transition: color .2s ease, background .2s ease, border-color .2s ease, transform .35s var(--ease);
    }
    .side-toggle:hover {
      color: var(--dash-text); background: var(--dash-hover); border-color: rgba(94,234,212,.28);
    }
    .side-toggle svg {
      width: 16px; height: 16px;
      transition: transform .35s var(--ease);
    }
    .app-shell.sidebar-collapsed .side-toggle svg { transform: rotate(180deg); }
    .side-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; overflow-y: auto; overflow-x: hidden; padding: 0 2px; }
    .side-sep {
      height: 1px;
      margin: 12px 14px;
      border: 0;
      background: linear-gradient(90deg, transparent, var(--dash-line) 12%, var(--dash-line) 88%, transparent);
      opacity: .95;
      transition: margin .3s var(--ease);
    }
    .side-nav button {
      display: flex; align-items: center; gap: 12px;
      width: 100%; border: 0; background: transparent; color: var(--dash-muted);
      min-height: 44px; padding: 10px 12px; border-radius: 12px; text-align: left; font-weight: 500;
      position: relative; transition: background .2s ease, color .2s ease, padding .3s var(--ease), gap .3s var(--ease);
      letter-spacing: .02em;
    }
    .side-nav button svg { width: 20px; height: 20px; flex-shrink: 0; opacity: .85; }
    .side-label {
      white-space: nowrap; overflow: hidden;
      transition: opacity .2s ease, max-width .3s var(--ease);
      max-width: 140px;
    }
    .side-nav button:hover { background: var(--dash-hover); color: var(--dash-text); }
    .side-nav button.active {
      background: rgba(255,255,255,.08); color: var(--dash-text); font-weight: 600;
      box-shadow: inset 0 0 0 1px rgba(94,234,212,.1);
    }
    html[data-theme="light"] .side-nav button.active {
      background: rgba(15, 118, 110, 0.1);
      box-shadow: inset 0 0 0 1px rgba(15,118,110,.12);
    }
    .side-nav button.active::before {
      content: ""; position: absolute; left: 0; top: 11px; bottom: 11px; width: 3px;
      border-radius: 0 4px 4px 0; background: linear-gradient(180deg, #5eead4, var(--gold));
    }
    .side-nav button.active svg { opacity: 1; color: #5eead4; }
    html[data-theme="light"] .side-nav button.active svg { color: var(--send-to); }
    .side-foot {
      display: flex; gap: 8px; padding-top: 12px; border-top: 1px solid var(--dash-line);
      transition: flex-direction .3s ease, align-items .3s ease;
    }

    /* collapsed rail */
    .app-shell.sidebar-collapsed {
      grid-template-columns: var(--sidebar-collapsed) 1fr;
    }
    .app-shell.sidebar-collapsed .sidebar {
      padding-left: 8px; padding-right: 8px;
    }
    .app-shell.sidebar-collapsed .side-brand {
      justify-content: center; flex-direction: column; gap: 8px; padding: 4px 0 14px;
    }
    .app-shell.sidebar-collapsed .sideBrandName,
    .app-shell.sidebar-collapsed .side-label {
      opacity: 0; max-width: 0; margin: 0; pointer-events: none;
    }
    .app-shell.sidebar-collapsed .side-toggle {
      margin-left: 0;
    }
    .app-shell.sidebar-collapsed .side-nav button {
      justify-content: center; gap: 0; padding: 10px 8px;
    }
    .app-shell.sidebar-collapsed .side-nav button.active::before {
      top: 10px; bottom: 10px;
    }
    .app-shell.sidebar-collapsed .side-sep { margin: 10px 10px; }
    .app-shell.sidebar-collapsed .side-foot {
      flex-direction: column; align-items: center;
    }
    .icon-btn {
      width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--dash-line);
      background: transparent; color: var(--dash-muted); display: grid; place-items: center;
      position: relative; transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s var(--ease);
    }
    .icon-btn:hover { color: var(--dash-text); background: var(--dash-hover); }
    .icon-btn .dot {
      position: absolute; top: 8px; right: 8px; width: 7px; height: 7px; border-radius: 50%;
      background: #ef4444; border: 1.5px solid var(--dash-sidebar);
    }
    .theme-btn .icon-sun, .theme-btn .icon-moon { display: none; }
    html[data-theme="dark"] .theme-btn .icon-sun { display: block; }
    html[data-theme="light"] .theme-btn .icon-moon { display: block; }
    .theme-btn:hover { color: var(--gold); border-color: rgba(212,160,23,.35); }

    .main {
      position: relative;
      z-index: 1;
      display: flex; flex-direction: column; min-width: 0; min-height: 0;
      background: transparent;
    }
    html[data-theme="light"] .main {
      background: transparent;
    }
    .app-top {
      display: flex; align-items: center; justify-content: flex-end; gap: 8px;
      padding: 16px 28px 0; flex-shrink: 0;
    }
    .chip {
      display: inline-flex; align-items: center; gap: 8px;
      min-height: 38px; padding: 6px 14px; border-radius: 999px;
      background: var(--chip-bg); border: 1px solid var(--dash-line);
      color: var(--dash-text); font-size: 13px; font-weight: 600;
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      transition: background .2s ease, border-color .2s ease;
    }
    .chip:hover { background: var(--dash-hover); }
    .chip.gold { color: var(--gold); }
    .chip svg { width: 16px; height: 16px; }
    .main-scroll {
      flex: 1; overflow-y: auto; padding: 8px 28px calc(36px + var(--safe-bottom));
    }

    .dash-home { width: min(1040px, 100%); margin: 0 auto; }
    .dash-hero {
      text-align: center; padding: 36px 0 22px;
      position: relative;
    }
    .dash-hero::before {
      content: "";
      position: absolute;
      left: 50%; top: 8%;
      width: min(420px, 70%); height: 120px;
      transform: translateX(-50%);
      background: radial-gradient(ellipse at center, var(--atm-a), transparent 70%);
      filter: blur(12px);
      pointer-events: none;
      z-index: -1;
      animation: heroAura 10s ease-in-out infinite alternate;
    }
    @keyframes heroAura {
      from { opacity: .45; transform: translateX(-50%) scale(0.92); }
      to { opacity: .85; transform: translateX(-50%) scale(1.08); }
    }
    @media (prefers-reduced-motion: reduce) {
      .dash-hero::before { animation: none; }
    }
    .dash-hero h1 {
      margin: 0 auto 22px; max-width: 14em;
      font-family: var(--font-display);
      font-size: clamp(26px, 3.6vw, 40px); font-weight: 700; letter-spacing: -.035em; line-height: 1.25;
    }
    .dash-hero h1 #dashSubtitle {
      display: block; margin-top: 6px;
      font-family: var(--font-body); font-style: normal; font-weight: 400;
      color: var(--dash-muted); font-size: .55em; letter-spacing: .02em;
    }
    .mode-switch {
      display: inline-flex; gap: 4px; padding: 4px;
      border-radius: 999px; background: var(--chip-bg); border: 1px solid var(--dash-line);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
    }
    .mode-switch button {
      border: 0; background: transparent; color: var(--dash-muted);
      min-height: 36px; padding: 8px 20px; border-radius: 999px; font-weight: 600; font-size: 13px;
      transition: background .2s ease, color .2s ease, box-shadow .2s ease;
    }
    .mode-switch button.active {
      background: var(--dash-panel); color: var(--dash-text);
      box-shadow: 0 1px 3px rgba(0,0,0,.12);
    }

    .prompt-box {
      margin: 8px auto 8px; width: min(760px, 100%);
      background: var(--dash-panel); border: 1px solid var(--prompt-border);
      border-radius: 24px; padding: 16px 16px 14px; box-shadow: var(--dash-shadow);
      backdrop-filter: blur(20px) saturate(1.2);
      -webkit-backdrop-filter: blur(20px) saturate(1.2);
      position: relative;
    }
    .prompt-box::before {
      content: "";
      position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
      background: linear-gradient(135deg, rgba(94,234,212,.12), transparent 42%, rgba(212,160,23,.06));
      opacity: .55;
      z-index: 0;
    }
    .prompt-box > * { position: relative; z-index: 1; }
    .prompt-tools { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
    .prompt-tools button {
      display: inline-flex; align-items: center; gap: 6px;
      border: 1px solid var(--dash-line); background: transparent;
      color: var(--dash-muted); border-radius: 999px; min-height: 34px; padding: 6px 12px; font-size: 12px; font-weight: 500;
      transition: color .2s ease, border-color .2s ease, background .2s ease;
    }
    .prompt-tools button:hover { color: var(--dash-text); border-color: rgba(20,184,166,.35); background: var(--dash-hover); }
    .prompt-box textarea {
      width: 100%; min-height: 96px; resize: vertical; border: 0; outline: none;
      background: transparent; color: var(--dash-text); padding: 10px 6px; line-height: 1.7;
    }
    .prompt-box textarea::placeholder { color: var(--dash-muted); opacity: .75; }
    .prompt-bar {
      display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
      padding-top: 12px; border-top: 1px solid var(--dash-line);
    }
    .prompt-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; color: var(--dash-muted); font-size: 12px; }
    .pill {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 6px 10px; border-radius: 999px; background: var(--chip-bg); border: 1px solid var(--dash-line);
      color: var(--dash-muted); font-size: 12px;
    }
    .pill.gold { color: var(--gold); border-color: rgba(212,160,23,.25); }
    .send-btn {
      width: 44px; height: 44px; border-radius: 14px; border: 0;
      background: linear-gradient(145deg, var(--send-from), var(--send-to)); color: #fff;
      display: grid; place-items: center; flex-shrink: 0;
      box-shadow: 0 10px 24px rgba(15,118,110,.28);
      transition: filter .2s ease, transform .2s var(--ease);
    }
    .send-btn:hover { filter: brightness(1.06); transform: translateY(-1px); }
    .history-link {
      display: block; text-align: center; color: var(--dash-muted); font-size: 13px; margin: 14px 0 32px;
      letter-spacing: .02em;
    }
    .history-link:hover { color: var(--dash-text); }

    .feature-layout {
      display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px;
    }
    @media (max-width: 960px) {
      .feature-layout { grid-template-columns: 1fr; }
    }
    .feature-hero {
      position: relative; min-height: 340px; border-radius: 22px; overflow: hidden;
      border: 1px solid var(--dash-line); cursor: pointer; text-align: left; padding: 0; width: 100%;
      background:
        var(--feature-scrim),
        url("https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=1200&q=80") center/cover;
      transition: transform .35s var(--ease), box-shadow .35s var(--ease);
    }
    .feature-hero:hover { transform: translateY(-2px); box-shadow: var(--dash-shadow); }
    .feature-hero .inner { position: absolute; left: 24px; right: 24px; bottom: 24px; color: #fff; }
    .feature-hero h3 { margin: 0 0 8px; font-size: 30px; font-weight: 700; letter-spacing: -.03em; }
    .feature-hero p { margin: 0 0 16px; color: rgba(255,255,255,.78); font-size: 14px; }
    .feature-hero .cta {
      display: inline-flex; align-items: center; gap: 6px;
      background: #fff; color: #111; border-radius: 999px; padding: 9px 16px; font-size: 13px; font-weight: 700;
    }
    .feature-grid {
      display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px;
    }
    @media (max-width: 720px) {
      .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    .feature-card {
      position: relative; min-height: 158px; border-radius: 18px; overflow: hidden;
      border: 1px solid var(--dash-line); padding: 0; text-align: left; cursor: pointer;
      background-size: cover; background-position: center;
      transition: transform .3s var(--ease), box-shadow .3s var(--ease);
    }
    .feature-card:hover { transform: translateY(-2px); box-shadow: var(--dash-shadow); }
    .feature-card::before {
      content: ""; position: absolute; inset: 0;
      background: var(--feature-scrim);
    }
    .feature-card .inner { position: absolute; left: 14px; right: 14px; bottom: 14px; z-index: 1; }
    .feature-card h4 { margin: 0 0 4px; font-size: 15px; font-weight: 700; color: #fff; }
    .feature-card p { margin: 0; font-size: 11px; color: rgba(255,255,255,.72); line-height: 1.4; }
    .feature-card .arrow {
      position: absolute; right: 10px; bottom: 10px; z-index: 1;
      width: 26px; height: 26px; border-radius: 50%; background: rgba(255,255,255,.16);
      display: grid; place-items: center; color: #fff; backdrop-filter: blur(6px);
    }
    .c1 { background-image: var(--feature-scrim), url("https://images.unsplash.com/photo-1542291026-7eec264c27ff?auto=format&fit=crop&w=600&q=80"); }
    .c2 { background-image: var(--feature-scrim), url("https://images.unsplash.com/photo-1616486338812-3dadae4b4ace?auto=format&fit=crop&w=600&q=80"); }
    .c3 { background-image: var(--feature-scrim), url("https://images.unsplash.com/photo-1596462502278-27bfdc403348?auto=format&fit=crop&w=600&q=80"); }
    .c4 { background-image: var(--feature-scrim), url("https://images.unsplash.com/photo-1517248135467-4c7edcad34c4?auto=format&fit=crop&w=600&q=80"); }
    .c5 { background-image: var(--feature-scrim), url("https://images.unsplash.com/photo-1522335789203-aabd1fc54bc9?auto=format&fit=crop&w=600&q=80"); }
    .c6 { background-image: var(--feature-scrim), url("https://images.unsplash.com/photo-1515886657613-9f3515b0c78f?auto=format&fit=crop&w=600&q=80"); }

    .panel-page { width: min(920px, 100%); margin: 0 auto; padding-top: 12px; }
    .panel-page h2 {
      margin: 0 0 6px; font-family: var(--font-display); font-size: 28px; letter-spacing: -.02em;
    }
    .panel-desc { margin: 0 0 18px; color: var(--dash-muted); font-size: 14px; }
    .coming-panel {
      margin-top: 48px;
      padding: 48px 28px;
      text-align: center;
      border-radius: 24px;
      border: 1px solid var(--dash-line);
      background: var(--dash-panel);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: var(--dash-shadow);
      position: relative;
      overflow: hidden;
    }
    .coming-panel::before {
      content: "";
      position: absolute; inset: 0; pointer-events: none;
      background:
        radial-gradient(420px 180px at 50% 0%, var(--atm-a), transparent 70%);
      opacity: .7;
    }
    .coming-panel > * { position: relative; z-index: 1; }
    .coming-mark {
      width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 18px;
      background:
        linear-gradient(145deg, rgba(94,234,212,.2), rgba(212,160,23,.12)),
        var(--dash-elev);
      border: 1px solid var(--dash-line);
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.04);
    }
    .coming-mark.extract {
      background:
        linear-gradient(145deg, rgba(56,189,248,.18), rgba(94,234,212,.12)),
        var(--dash-elev);
    }
    .coming-tag {
      display: inline-flex; align-items: center;
      margin-top: 8px; min-height: 30px; padding: 0 14px;
      border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .08em;
      color: var(--gold); border: 1px solid rgba(212,160,23,.28);
      background: rgba(212,160,23,.08);
    }

    /* —— Pricing / 积分购买（参考订阅套餐页） —— */
    .pricing-page {
      width: min(1120px, 100%);
      margin: 0 auto;
      padding-top: 8px;
      padding-bottom: 24px;
    }
    .pricing-board {
      position: relative;
      background: #f4f5f7;
      color: #141416;
      border-radius: 24px;
      padding: 36px 28px 28px;
      box-shadow: 0 24px 60px rgba(0,0,0,.18);
      border: 1px solid rgba(255,255,255,.4);
    }
    html[data-theme="light"] .pricing-board {
      box-shadow: 0 18px 48px rgba(15,23,32,.08);
      border-color: rgba(15,23,32,.06);
    }
    .pricing-close {
      position: absolute; top: 16px; right: 16px;
      width: 36px; height: 36px; border-radius: 10px;
      border: 0; background: transparent; color: #8b8f97;
      display: grid; place-items: center;
      transition: background .2s ease, color .2s ease;
    }
    .pricing-close:hover { background: rgba(0,0,0,.05); color: #141416; }
    .pricing-head { text-align: center; margin: 4px 0 28px; }
    .pricing-head h2 {
      margin: 0 0 10px;
      font-size: clamp(22px, 3vw, 30px);
      font-weight: 700;
      letter-spacing: -.02em;
      color: #111;
    }
    .pricing-head p {
      margin: 0;
      color: #8b8f97;
      font-size: 14px;
    }
    .pricing-link {
      border: 0; background: transparent; padding: 0;
      color: #3b82f6; font: inherit; font-weight: 600; cursor: pointer;
    }
    .pricing-link:hover { text-decoration: underline; }
    .pricing-sep { margin: 0 6px; color: #c4c7ce; }
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
      align-items: stretch;
    }
    @media (max-width: 960px) {
      .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
    }
    .pricing-card {
      background: #fff;
      border: 1px solid #ebecef;
      border-radius: 18px;
      padding: 22px 20px 18px;
      display: flex; flex-direction: column;
      box-shadow: 0 8px 24px rgba(15, 23, 32, 0.04);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease);
    }
    .pricing-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 36px rgba(15, 23, 32, 0.08);
    }
    .pricing-card.is-featured {
      border-color: #d8dbe3;
      box-shadow: 0 12px 32px rgba(15, 23, 32, 0.08);
    }
    .pricing-tier {
      margin: 0 0 10px;
      font-size: 14px; font-weight: 600; color: #1a1a1a;
    }
    .pricing-price {
      display: flex; align-items: baseline; gap: 4px;
      margin: 0 0 6px; color: #111;
    }
    .pricing-price .yen { font-size: 18px; font-weight: 600; }
    .pricing-price .num {
      font-size: clamp(36px, 4vw, 44px);
      font-weight: 700; letter-spacing: -.04em; line-height: 1;
    }
    .pricing-price .unit { font-size: 14px; color: #6b7280; margin-left: 2px; }
    .pricing-note {
      margin: 0 0 16px;
      font-size: 12px; color: #9ca3af;
    }
    .pricing-bonus {
      background: #f3f4f6;
      border-radius: 12px;
      padding: 12px 14px;
      margin-bottom: 16px;
    }
    .pricing-bonus strong {
      display: block;
      font-size: 14px; font-weight: 700; color: #111;
    }
    .pricing-bonus span {
      display: block; margin-top: 4px;
      font-size: 12px; color: #9ca3af;
    }
    .pricing-buy {
      width: 100%;
      min-height: 44px;
      border: 0; border-radius: 999px;
      background: #111; color: #fff;
      font-size: 15px; font-weight: 600;
      letter-spacing: .04em;
      transition: background .2s ease, transform .2s var(--ease), opacity .2s ease;
    }
    .pricing-buy:hover:not(:disabled) {
      background: #2a2a2a;
      transform: translateY(-1px);
    }
    .pricing-divider {
      height: 1px; margin: 18px 0 14px;
      background: #eceef2; border: 0;
    }
    .pricing-features {
      list-style: none; margin: 0; padding: 0;
      display: flex; flex-direction: column; gap: 11px;
      flex: 1;
    }
    .pricing-features li {
      display: flex; align-items: center; gap: 8px;
      font-size: 13px; color: #374151; line-height: 1.4;
    }
    .pricing-features .check {
      width: 16px; height: 16px; flex-shrink: 0; color: #111;
    }
    .pricing-features .feat-name { flex: 1; min-width: 0; }
    .pricing-features .feat-badge {
      flex-shrink: 0;
      font-size: 11px; color: #6b7280;
      background: #f3f4f6;
      border-radius: 6px;
      padding: 2px 7px;
      white-space: nowrap;
    }
    .pricing-orders {
      margin-top: 22px;
      background: #fff;
      border: 1px solid #ebecef;
      border-radius: 16px;
      padding: 16px 18px;
    }
    .pricing-orders .orders-title {
      font-size: 13px; font-weight: 600; color: #6b7280;
      margin-bottom: 8px;
    }
    .pricing-orders .list-item {
      border-bottom-color: #f0f1f4;
    }
    .pricing-orders .list-item .title { color: #111; }
    .pricing-orders .list-item .sub,
    .pricing-orders .muted { color: #9ca3af; }
    .stat-row { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-bottom: 18px; }
    @media (max-width: 640px) { .stat-row { grid-template-columns: 1fr; } }
    .stat {
      padding: 16px; border-radius: 16px; background: var(--dash-panel); border: 1px solid var(--dash-line);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
    }
    .stat .label { color: var(--dash-muted); font-size: 13px; }
    .stat .value { margin-top: 6px; font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--gold); }
    .user-meta { line-height: 1.8; color: var(--dash-text); margin-bottom: 16px; }
    .filter-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
    .filter-row button {
      border: 1px solid var(--dash-line); background: var(--dash-elev); color: var(--dash-muted);
      border-radius: 999px; min-height: 36px; padding: 6px 14px; font-weight: 600; font-size: 13px;
    }
    .filter-row button.active { background: rgba(212,160,23,.12); color: var(--gold); border-color: transparent; }
    .list-item {
      padding: 14px 0; border-bottom: 1px solid var(--dash-line);
      display: flex; justify-content: space-between; gap: 12px; align-items: center;
    }
    .list-item:last-child { border-bottom: 0; }
    .list-item .title { font-weight: 600; color: var(--dash-text); }
    .list-item .sub { color: var(--dash-muted); font-size: 13px; margin-top: 4px; }
    .muted { color: var(--dash-muted); font-size: 13px; }
    .msg { margin-top: 12px; font-size: 13px; color: var(--ok); white-space: pre-wrap; }
    .msg.err { color: var(--danger); }
    .dark-card {
      background: var(--dash-panel); border: 1px solid var(--dash-line);
      border-radius: 16px; padding: 18px;
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
    }
    .agree-item {
      display: flex; gap: 10px; align-items: flex-start;
      padding: 12px 0; border-bottom: 1px solid var(--dash-line); color: var(--dash-text);
    }
    .agree-item a { color: #0ea5e9; }
    html[data-theme="dark"] .agree-item a { color: #7dd3fc; }
    .toast {
      position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
      z-index: 60; background: var(--dash-panel); color: var(--dash-text); border: 1px solid var(--dash-line);
      padding: 12px 18px; border-radius: 12px; font-size: 13px; opacity: 0; pointer-events: none;
      transition: opacity .25s ease, transform .25s ease; max-width: min(90vw, 360px); text-align: center;
      box-shadow: var(--dash-shadow);
    }
    .toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
    .works-grid {
      display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px;
    }
    .work-card {
      position: relative; border-radius: 16px; overflow: hidden;
      border: 1px solid var(--dash-line); background: var(--dash-panel); min-height: 180px;
      text-align: left; padding: 0; color: var(--dash-text); cursor: pointer;
    }
    .work-card img, .work-card video {
      width: 100%; height: 140px; object-fit: cover; display: block; background: var(--dash-elev);
    }
    .work-card .meta { padding: 10px 12px 12px; }
    .work-card .meta b { display: block; font-size: 13px; margin-bottom: 4px; }
    .work-card .meta span { color: var(--dash-muted); font-size: 11px; }
    .work-card .work-actions {
      display: flex; gap: 8px; padding: 0 12px 12px;
    }
    .work-card .work-actions button {
      flex: 1; border: 1px solid var(--dash-line); background: var(--chip-bg);
      color: var(--dash-text); border-radius: 8px; padding: 6px 8px; font-size: 12px; cursor: pointer;
    }
    .work-card .work-actions button:hover { border-color: rgba(212,160,23,.45); color: var(--gold); }
    .cs-fab {
      position: fixed; right: 22px; bottom: calc(22px + var(--safe-bottom)); z-index: 45;
      width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(212,160,23,.35);
      background: var(--dash-panel); color: var(--gold);
      box-shadow: var(--dash-shadow); cursor: pointer; display: none;
      align-items: center; justify-content: center;
    }
    .app-shell:not(.hidden) .cs-fab.show,
    body.page-app .cs-fab.show,
    body.app-mode .cs-fab.show { display: inline-flex; }
    .cs-fab svg { width: 20px; height: 20px; }
    .support-box textarea, .support-box input, .cancel-box textarea {
      width: 100%; margin-top: 8px; border-radius: 10px; border: 1px solid var(--dash-line);
      background: var(--dash-input); color: var(--dash-text); padding: 10px 12px; font: inherit; resize: vertical;
    }
    .support-meta { color: var(--dash-muted); font-size: 13px; line-height: 1.6; margin: 0 0 12px; }
    .support-meta a { color: var(--gold); }
    .ticket-item, .cancel-status {
      padding: 12px 0; border-bottom: 1px solid var(--dash-line); font-size: 13px; color: var(--dash-text);
    }
    .ticket-item:last-child { border-bottom: 0; }
    .qr-preview { max-width: 160px; border-radius: 12px; margin-top: 10px; border: 1px solid var(--dash-line); }
    .task-bar {
      height: 6px; border-radius: 999px; background: var(--dash-elev); overflow: hidden; margin: 10px 0;
    }
    .task-bar i {
      display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--gold), #14b8a6);
      transition: width .3s ease;
    }
    .task-preview { margin-top: 12px; border-radius: 12px; overflow: hidden; border: 1px solid var(--dash-line); }
    .task-preview img, .task-preview video { width: 100%; max-height: 360px; object-fit: contain; display: block; background: #000; }

    /* mobile sidebar */
    .mobile-bar {
      display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
      background: var(--dash-sidebar); border-top: 1px solid var(--dash-line);
      padding: 8px 8px calc(8px + var(--safe-bottom));
      justify-content: space-around;
    }
    .mobile-bar button {
      border: 0; background: transparent; color: var(--dash-muted);
      display: flex; flex-direction: column; align-items: center; gap: 4px;
      font-size: 11px; min-width: 56px; padding: 6px;
    }
    .mobile-bar button.active { color: var(--gold); }
    .mobile-bar svg { width: 20px; height: 20px; }

    .btn-line {
      background: var(--dash-panel); color: var(--dash-text); border: 1px solid var(--dash-line); border-radius: 12px;
    }
    .btn-line:hover:not(:disabled) { background: var(--dash-hover); }

    @media (max-width: 860px) {
      .app-shell { grid-template-columns: 1fr; }
      .sidebar { display: none; }
      body.app-mode { overflow: auto; }
      .app-shell { height: auto; min-height: 100svh; }
      .main-scroll { padding-bottom: calc(84px + var(--safe-bottom)); }
      .mobile-bar { display: flex; }
      .app-top { padding-right: 14px; padding-left: 14px; }
      .main-scroll { padding-left: 14px; padding-right: 14px; }
    }

    /* —— Modal —— */
    .modal-layer {
      position: fixed; inset: 0; z-index: var(--z-drawer);
      display: grid; place-items: center;
      padding: max(20px, var(--safe-top)) 16px max(20px, var(--safe-bottom));
      opacity: 0; pointer-events: none; transition: opacity .32s var(--ease);
    }
    .modal-layer.show { opacity: 1; pointer-events: auto; }
    .modal-backdrop {
      position: absolute; inset: 0;
      background: rgba(3, 6, 10, .72);
      backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    }
    .modal {
      position: relative; z-index: 1;
      width: min(420px, 100%);
      max-height: min(90svh, 740px);
      overflow: hidden;
      padding: 0;
      border-radius: 0;
      color: #f4f7f8;
      background:
        linear-gradient(180deg, rgba(255,255,255,.03), transparent 28%),
        linear-gradient(165deg, #12171e 0%, #0b0f14 100%);
      border: 1px solid rgba(255,255,255,.14);
      box-shadow: 0 32px 80px rgba(0,0,0,.5);
      transform: translateY(22px);
      opacity: 0;
      transition: transform .4s var(--ease), opacity .4s var(--ease);
    }
    .modal-layer.show .modal { transform: translateY(0); opacity: 1; }
    .modal-ornament {
      position: absolute; inset: 0; pointer-events: none; overflow: hidden;
    }
    .modal-ornament::before {
      content: "";
      position: absolute; left: 0; right: 0; top: 0; height: 1px;
      background: linear-gradient(90deg, transparent, rgba(94,234,212,.55), transparent);
    }
    .modal-ornament::after {
      content: "";
      position: absolute; top: 0; right: 0;
      width: 180px; height: 180px;
      background: radial-gradient(circle at 100% 0%, rgba(94,234,212,.12), transparent 68%);
    }
    .modal-inner { position: relative; z-index: 1; padding: 28px 28px 30px; max-height: min(90svh, 740px); overflow-y: auto; }
    .modal-top {
      display: flex; align-items: center; justify-content: space-between;
      gap: 12px; margin-bottom: 28px;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(255,255,255,.1);
    }
    .modal-brand {
      display: flex; align-items: center; gap: 12px;
      margin: 0;
    }
    .modal-brand span {
      font-family: var(--font-display); font-weight: 600; font-size: 15px; letter-spacing: .12em;
    }
    .modal-kicker {
      margin: 0 0 12px;
      font-size: 11px;
      font-weight: 500;
      letter-spacing: .36em;
      color: rgba(255,255,255,.45);
    }
    .modal h2 {
      margin: 0 0 10px;
      font-family: var(--font-display);
      font-size: clamp(26px, 5.5vw, 32px);
      font-weight: 600;
      letter-spacing: .08em;
      line-height: 1.25;
    }
    .modal h2 em {
      font-family: var(--font-body); font-style: normal; font-weight: 400;
      color: #99f6e4; display: block; margin-top: 8px;
      font-size: .48em; letter-spacing: .16em;
    }
    .modal-rule {
      width: 48px; height: 1px; margin: 0 0 22px;
      background: linear-gradient(90deg, #5eead4, transparent);
    }
    .modal-close {
      border: 0;
      background: transparent;
      width: 40px; height: 40px; border-radius: 0;
      display: grid; place-items: center; color: rgba(255,255,255,.55); flex-shrink: 0;
      border-bottom: 1px solid transparent;
      transition: color .25s ease, border-color .25s ease;
    }
    .modal-close:hover {
      color: #fff; border-bottom-color: rgba(255,255,255,.35);
    }
    .panel-desc-light {
      margin: 0 0 18px; color: rgba(255,255,255,.5); font-size: 13px;
      letter-spacing: .06em; line-height: 1.7;
    }
    .oauth-row {
      display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 0;
    }
    .oauth-btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 46px; border-radius: 0;
      border: 1px solid rgba(255,255,255,.14);
      background: transparent;
      color: rgba(255,255,255,.88); font-weight: 500; font-size: 12px;
      letter-spacing: .08em;
      transition: background .2s ease, border-color .2s ease, color .2s ease;
    }
    .oauth-btn:hover:not(:disabled) {
      background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.28); color: #fff;
    }
    .oauth-btn.wx svg { color: #07c160; }
    .oauth-btn.qq svg { color: #12b7f5; }
    .oauth-btn svg { width: 18px; height: 18px; }
    .oauth-divider {
      display: flex; align-items: center; gap: 12px;
      margin: 22px 0 14px; color: rgba(255,255,255,.35); font-size: 11px; letter-spacing: .18em;
    }
    .oauth-divider::before, .oauth-divider::after {
      content: ""; flex: 1; height: 1px; background: rgba(255,255,255,.1);
    }
    .login-agree {
      display: flex; align-items: flex-start; gap: 10px;
      margin: 4px 0 16px;
      color: rgba(255,255,255,.55);
      font-size: 12px;
      letter-spacing: .04em;
      line-height: 1.7;
      cursor: pointer;
    }
    .login-agree input {
      margin-top: 3px;
      width: 14px; height: 14px;
      flex-shrink: 0;
      accent-color: #14b8a6;
    }
    .login-agree a {
      color: #99f6e4;
      text-decoration: none;
      border-bottom: 1px solid rgba(153,246,228,.35);
      margin: 0 2px;
    }
    .login-agree a:hover {
      color: #ccfbf1;
      border-bottom-color: #5eead4;
    }
    .agree-preview {
      position: absolute; inset: 0; z-index: 2;
      display: flex; flex-direction: column;
      background: #0c1118;
      border-radius: inherit;
      overflow: hidden;
    }
    .agree-preview[hidden] { display: none !important; }
    .agree-preview-head {
      flex-shrink: 0;
      padding: 18px 22px 12px;
      border-bottom: 1px solid rgba(255,255,255,.08);
    }
    .agree-preview-back {
      border: 0; background: transparent; padding: 0;
      color: rgba(255,255,255,.55); font-size: 12px; letter-spacing: .08em;
      cursor: pointer; margin-bottom: 10px;
    }
    .agree-preview-back:hover { color: #99f6e4; }
    .agree-preview-head h3 {
      margin: 0; font-size: 16px; font-weight: 600;
      color: #fff; letter-spacing: .06em;
    }
    .agree-preview-body {
      flex: 1; overflow: auto; padding: 18px 22px 28px;
      color: rgba(255,255,255,.72); font-size: 13px; line-height: 1.8;
    }
    .agree-preview-body p { margin: 0 0 12px; }
    .agree-preview-body a { color: #99f6e4; }
    .field { margin-bottom: 16px; }
    .field label {
      display: block; font-size: 11px; color: rgba(255,255,255,.45);
      margin-bottom: 10px; font-weight: 500; letter-spacing: .18em;
    }
    .field input {
      width: 100%;
      border: 0;
      border-bottom: 1px solid rgba(255,255,255,.18);
      background: transparent;
      color: #fff;
      border-radius: 0;
      min-height: 46px;
      padding: 10px 0;
      outline: none;
      letter-spacing: .04em;
      transition: border-color .25s ease, box-shadow .25s ease;
    }
    .field input::placeholder { color: rgba(255,255,255,.28); letter-spacing: .04em; }
    .field input:focus {
      border-bottom-color: #5eead4;
      box-shadow: none;
    }
    .code-row { display: flex; gap: 12px; align-items: stretch; }
    .code-row input { flex: 1; min-width: 0; }
    .btn-sms {
      flex-shrink: 0; min-height: 46px; padding: 0 4px 0 12px;
      border-radius: 0; border: 0; border-bottom: 1px solid rgba(255,255,255,.18);
      background: transparent; color: rgba(255,255,255,.75);
      font-weight: 500; font-size: 12px; letter-spacing: .1em;
      white-space: nowrap; transition: color .2s ease, border-color .2s ease;
    }
    .btn-sms:hover:not(:disabled) {
      color: #5eead4; border-bottom-color: #5eead4;
    }
    .btn-login-main {
      width: 100%; min-height: 50px; margin-top: 10px;
      border: 0; border-radius: 0;
      background: #fff;
      color: #0b1218; font-weight: 500; font-size: 13px; letter-spacing: .18em;
      box-shadow: 0 16px 40px rgba(0,0,0,.28);
      transition: transform .25s var(--ease), background .2s ease, opacity .2s ease;
    }
    .btn-login-main:hover:not(:disabled) {
      background: #f3f6f7;
      transform: translateY(-1px);
    }
    .modal .msg {
      margin-top: 14px;
      color: #99f6e4;
      font-size: 12px;
      letter-spacing: .06em;
    }
    .modal .msg.err { color: #fb7185; }
    body.modal-open { overflow: hidden; }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important;
      }
      .hero-video { animation: none; }
      .hero-anim, .hero-rule, .hero-brand em, .hero-title .hero-char, .hero-desc .hero-line, .hero-rule::after {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
      }
      .hero-rule { width: min(220px, 48vw); }
    }


/* multi-page: app page always shows shell */
body.page-app {
  background: var(--dash-bg);
  color: var(--dash-text);
  overflow: hidden;
}
body.page-app .app-shell { display: grid; }
html.sidebar-collapsed-pending body.page-app .app-shell {
  grid-template-columns: var(--sidebar-collapsed) 1fr;
}
html.sidebar-collapsed-pending body.page-app .app-shell .sideBrandName,
html.sidebar-collapsed-pending body.page-app .app-shell .side-label {
  opacity: 0; max-width: 0; margin: 0;
}
@media (max-width: 860px) {
  body.page-app { overflow: auto; }
}
body.page-landing {
  background: #0a1016;
}