:root {
      color-scheme: light;
      --ink-950: #1a1a1c;
      --ink-800: #444141;
      --ink-650: #605d5d;
      --ink-500: #605d5d;
      --paper-0: #ffffff;
      --paper-50: #f4f4f5;
      --paper-100: #f7f7f8;
      --paper-200: #e5e5e7;
      --signal-700: #ae1800;
      --signal-500: #ec3013;
      --signal-100: #fff2ef;
      --positive-700: #1f6b49;
      --positive-100: #dff2e8;
      --warning-700: #95610b;
      --warning-100: #fff0c7;
      --danger-700: #a33b32;
      --danger-100: #fde4df;
      --focus: #007f93;
      --inverse-fg: #f7f7f8;
      --inverse-bg: #1a1a1c;
      --cta-bg: #ae1800;
      --cta-bg-hover: #7c1405;
      --shadow-1: 0 1px 2px rgba(26,26,28,.05), 0 0 0 1px rgba(26,26,28,.035);
      --shadow-2: 0 8px 24px -8px rgba(26,26,28,.16), 0 0 0 1px rgba(26,26,28,.04);
      --radius-sm: 8px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --space-1: .25rem;
      --space-2: .5rem;
      --space-3: .75rem;
      --space-4: 1rem;
      --space-5: 1.25rem;
      --space-6: 1.5rem;
      --space-8: 2rem;
      --space-10: 2.5rem;
      --space-12: 3rem;
      --font-sans: "Archivo", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
      --font-mono: "SFMono-Regular", "Roboto Mono", ui-monospace, monospace;
      --ease-out: cubic-bezier(.23, 1, .32, 1);
      --page-max: 1180px;
      --section-y: clamp(4.5rem, 9vw, 8rem);
    }

    * { box-sizing: border-box; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      overflow-x: hidden;
      background: var(--paper-50);
      color: var(--ink-950);
      font-family: var(--font-sans);
      font-size: 1rem;
      line-height: 1.6;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }
    body[data-theme="dark"] {
      color-scheme: dark;
      --ink-950: #f7f7f8;
      --ink-800: #e5e5e7;
      --ink-650: #bdbdc3;
      --ink-500: #93939b;
      --paper-0: #1f1f22;
      --paper-50: #1a1a1c;
      --paper-100: #25252b;
      --paper-200: #444141;
      --signal-700: #ff9783;
      --signal-500: #ff563c;
      --signal-100: #4d170e;
      --positive-700: #dff2e8;
      --positive-100: #1f6b49;
      --warning-700: #fff0c7;
      --warning-100: #95610b;
      --danger-700: #fde4df;
      --danger-100: #a33b32;
      --focus: #ff9783;
      --inverse-fg: #f7f7f8;
      --inverse-bg: #101012;
      --cta-bg: #ae1800;
      --cta-bg-hover: #7c1405;
      --shadow-1: 0 1px 2px rgba(0,0,0,.24), 0 0 0 1px rgba(255,255,255,.05);
      --shadow-2: 0 12px 32px -12px rgba(0,0,0,.58), 0 0 0 1px rgba(255,255,255,.06);
    }
    button, input { font: inherit; }
    button, a, input, summary { touch-action: manipulation; }
    button, a { -webkit-tap-highlight-color: transparent; }
    a { color: inherit; }
    img, svg { display: block; }
    [hidden] { display: none !important; }
    :focus-visible {
      outline: 3px solid var(--focus);
      outline-offset: 3px;
    }
    .skip-link {
      position: fixed;
      inset: var(--space-3) auto auto var(--space-3);
      z-index: 100;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      padding: 0 var(--space-4);
      border-radius: var(--radius-sm);
      background: var(--ink-950);
      color: var(--paper-0);
      transform: translateY(-160%);
      transition: transform 160ms var(--ease-out);
    }
    .skip-link:focus { transform: translateY(0); }
    .shell { min-height: 100vh; }
    .container { width: min(var(--page-max), calc(100% - 2rem)); margin-inline: auto; }

    .masthead {
      position: sticky;
      top: 0;
      z-index: 30;
      border-bottom: 1px solid color-mix(in srgb, var(--ink-950) 10%, transparent);
      background: color-mix(in srgb, var(--paper-50) 92%, transparent);
      backdrop-filter: blur(18px) saturate(150%);
    }
    .masthead-inner {
      min-height: 72px;
      display: flex;
      align-items: center;
      gap: var(--space-6);
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: var(--space-3);
      min-width: 44px;
      min-height: 44px;
      flex: none;
      text-decoration: none;
    }
    .brand-mark {
      width: 32px;
      height: 32px;
      display: block;
      color: var(--ink-950);
    }
    .brand-mark svg { display: block; width: 32px; height: 32px; }
    .brand-name { font-weight: 800; letter-spacing: -.03em; }
    .brand-by { display: block; margin-top: -2px; color: var(--ink-650); font-size: .75rem; line-height: 1.2; }
    .nav { display: flex; align-items: center; gap: var(--space-1); margin-left: auto; }
    .nav a, .text-action {
      min-width: 44px;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding-inline: var(--space-3);
      border: 0;
      border-radius: var(--radius-sm);
      background: transparent;
      color: var(--ink-650);
      font-size: .875rem;
      font-weight: 700;
      text-decoration: none;
      cursor: pointer;
      transition: color 140ms ease, background-color 140ms ease;
    }
    .nav a:hover, .text-action:hover { background: var(--paper-100); color: var(--ink-950); }
    .language-compact { display: none; }
    .header-actions { display: flex; align-items: center; gap: var(--space-4); flex: none; }
    .header-utilities {
      display: flex;
      align-items: center;
      gap: var(--space-1);
      padding-inline-end: var(--space-4);
      border-inline-end: 1px solid color-mix(in srgb, var(--ink-950) 10%, transparent);
    }
    .icon-action {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      padding: 0;
      border: 1px solid var(--paper-200);
      border-radius: var(--radius-sm);
      background: var(--paper-0);
      color: var(--ink-650);
      cursor: pointer;
      box-shadow: var(--shadow-1);
      transition: color 140ms ease, border-color 140ms ease, transform 130ms var(--ease-out);
    }
    .icon-action:hover { border-color: var(--ink-500); color: var(--ink-950); }
    .button {
      min-height: 48px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: var(--space-2);
      padding: 0 var(--space-5);
      border: 1px solid transparent;
      border-radius: var(--radius-md);
      font-weight: 800;
      text-decoration: none;
      cursor: pointer;
      transition: transform 130ms var(--ease-out), background-color 160ms ease, border-color 160ms ease;
    }
    .button:active, .icon-action:active { transform: scale(.96); }
    .button-primary { background: var(--cta-bg); color: #ffffff; box-shadow: var(--shadow-1); }
    .button-primary:hover { background: var(--cta-bg-hover); }
    .button-secondary { border-color: var(--paper-200); background: var(--paper-0); color: var(--ink-950); box-shadow: var(--shadow-1); }
    .button-secondary:hover { border-color: var(--ink-500); background: var(--paper-100); }
    .button:disabled { cursor: wait; opacity: .58; }

    .hero {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(320px, .88fr);
      gap: clamp(2.5rem, 7vw, 6rem);
      align-items: center;
      min-height: min(780px, calc(100svh - 72px));
      padding-block: clamp(4rem, 9vw, 7rem);
    }
    .hero-copy { position: relative; z-index: 1; }
    h1, h2, h3 { margin-top: 0; text-wrap: balance; }
    h1 {
      max-width: 10em;
      margin-bottom: var(--space-6);
      font-size: clamp(3rem, 4.2vw, 3.75rem);
      font-weight: 700;
      line-height: 1.04;
      letter-spacing: -.04em;
    }
    .nowrap { white-space: nowrap; }
    .hero-lede {
      max-width: 35rem;
      margin: 0 0 var(--space-8);
      color: var(--ink-650);
      font-size: clamp(1.08rem, 2vw, 1.28rem);
      line-height: 1.7;
      text-wrap: pretty;
    }
    .hero-proof {
      display: flex;
      flex-wrap: wrap;
      gap: var(--space-3) var(--space-5);
      margin: var(--space-5) 0 0;
      color: var(--ink-500);
      font-size: .78rem;
      font-weight: 650;
    }
    .hero-proof span { display: inline-flex; align-items: center; gap: var(--space-2); }
    .hero-proof span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--positive-700); }

    .lead-form { max-width: 34rem; }
    .form-label { display: block; margin-bottom: var(--space-2); color: var(--ink-800); font-size: .82rem; font-weight: 750; }
    .form-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-2); }
    .input {
      min-height: 48px;
      width: 100%;
      padding: .7rem var(--space-4);
      border: 1px solid var(--paper-200);
      border-radius: var(--radius-md);
      background: var(--paper-0);
      color: var(--ink-950);
      box-shadow: var(--shadow-1);
      transition: border-color 150ms ease, box-shadow 150ms ease;
    }
    .input::placeholder { color: var(--ink-500); opacity: 1; }
    .input:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-color: var(--focus); box-shadow: none; }
    .input[aria-invalid="true"] { border-color: var(--danger-700); }
    .crumbs {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: var(--space-2);
      margin: 0 0 var(--space-4);
      color: var(--ink-650);
      font-size: .78rem;
    }
    .crumbs a {
      min-width: 44px;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      text-decoration: none;
    }
    .crumbs a:hover { color: var(--ink-950); }
    .form-note, .form-error, .form-success { margin: var(--space-2) 0 0; font-size: .78rem; }
    .form-note { color: var(--ink-650); }
    .form-error { color: var(--danger-700); font-weight: 650; }
    .form-success { display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-4); border-radius: var(--radius-md); background: var(--positive-100); color: var(--positive-700); }
    .form-success svg { flex: none; margin-top: 2px; }
    .spinner { width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.45); border-top-color: white; border-radius: 50%; animation: spin .8s linear infinite; }
    @keyframes spin { to { transform: rotate(1turn); } }

    .product-stage {
      position: relative;
      z-index: 1;
      min-width: 0;
      padding: var(--space-3);
      border-radius: var(--radius-lg);
      background: var(--inverse-bg);
      color: var(--inverse-fg);
      box-shadow: var(--shadow-2);
    }
    .stage-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-2) var(--space-2) var(--space-4); }
    .stage-brand { display: flex; align-items: center; gap: var(--space-2); font-size: .75rem; font-weight: 750; }
    .stage-brand::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--signal-500); }
    .stage-time { color: rgba(255,255,255,.66); font-family: var(--font-mono); font-size: .75rem; }
    .stage-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2); }
    .metric-tile { min-width: 0; padding: var(--space-4); border-radius: var(--radius-md); background: rgba(255,255,255,.08); }
    .metric-tile small { display: block; margin-bottom: var(--space-3); color: rgba(255,255,255,.68); font-size: .75rem; }
    .metric-tile strong { display: block; font-size: 1.6rem; line-height: 1; font-variant-numeric: tabular-nums; }
    .metric-tile strong.signal { color: var(--signal-500); }
    .stage-chart { margin-top: var(--space-2); padding: var(--space-5); border-radius: var(--radius-md); background: var(--paper-0); color: var(--ink-950); }
    .chart-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-5); }
    .chart-head strong { font-size: .85rem; }
    .chart-head span { color: var(--ink-650); font-family: var(--font-mono); font-size: .75rem; }
    .chart { width: 100%; height: auto; }
    .chart-signal { color: var(--signal-500); }
    .alert-ticket {
      position: static;
      width: 100%;
      margin-top: var(--space-2);
      padding: var(--space-4);
      border-radius: var(--radius-md);
      background: var(--paper-0);
      color: var(--ink-950);
      box-shadow: var(--shadow-2);
    }
    .alert-ticket-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-3); }
    .alert-ticket-head strong { font-size: .78rem; }
    .status-pill { min-height: 24px; display: inline-flex; align-items: center; padding: 0 .55rem; border-radius: 99rem; background: var(--signal-100); color: var(--signal-700); font-size: .75rem; font-weight: 800; }
    .alert-title { margin: 0 0 var(--space-2); overflow-wrap: anywhere; font-size: .8rem; font-weight: 700; line-height: 1.4; }
    .price-line { display: flex; align-items: baseline; gap: var(--space-3); }
    .price-line s { color: var(--ink-500); font-family: var(--font-mono); font-size: .75rem; }
    .price-line strong { color: var(--signal-700); font-family: var(--font-mono); font-size: 1.25rem; }

    .platform-band { border-block: 1px solid color-mix(in srgb, var(--ink-950) 10%, transparent); background: var(--paper-0); }
    .platform-row { min-height: 104px; display: grid; grid-template-columns: 1.1fr repeat(3, 1fr); align-items: stretch; }
    .platform-intro, .platform-item { display: flex; align-items: center; padding: var(--space-5); }
    .platform-intro { padding-left: 0; color: var(--ink-650); font-size: .88rem; font-weight: 700; }
    .platform-item { gap: var(--space-3); border-left: 1px solid color-mix(in srgb, var(--ink-950) 10%, transparent); font-weight: 750; text-decoration: none; }
    .platform-monogram { /* kept for rollback compatibility */
      width: 36px; height: 36px; display: grid; flex: none; place-items: center;
      border: 1px solid var(--paper-200); border-radius: var(--radius-sm);
      color: var(--ink-650); font-size: .68rem; font-weight: 800; letter-spacing: -.02em;
    }
    .platform-logo {
      width: 36px;
      height: 36px;
      display: grid;
      flex: none;
      place-items: center;
    }
    .platform-logo img,
    .platform-logo svg {
      width: 28px;
      height: 28px;
      object-fit: contain;
    }

    .section { padding-block: var(--section-y); }
    .section + .section { border-top: 1px solid color-mix(in srgb, var(--ink-950) 9%, transparent); }
    .section-heading { max-width: 820px; margin-bottom: clamp(2.5rem, 6vw, 5rem); }
    h2 { margin-bottom: var(--space-5); font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 700; line-height: 1.08; letter-spacing: -.04em; }
    .section-heading p { max-width: 64ch; margin: 0; color: var(--ink-650); font-size: 1.05rem; line-height: 1.7; }
    h3 { margin-bottom: var(--space-3); font-size: clamp(1.15rem, 2vw, 1.5rem); line-height: 1.2; letter-spacing: -.02em; }

    .signal-list { border-top: 1px solid var(--paper-200); }
    .signal-row { display: grid; grid-template-columns: 80px minmax(180px, .8fr) minmax(0, 1.4fr); gap: var(--space-6); align-items: baseline; padding-block: var(--space-8); border-bottom: 1px solid var(--paper-200); }
    .signal-index { color: var(--ink-500); font-family: var(--font-mono); font-size: .75rem; }
    .signal-row h3 { margin: 0; }
    .signal-row p { max-width: 58ch; margin: 0; color: var(--ink-650); }

    .proof-split { display: grid; grid-template-columns: minmax(0, .88fr) minmax(420px, 1.12fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: center; }
    .proof-copy h2 { max-width: 10ch; }
    .proof-copy > p { max-width: 55ch; margin: 0 0 var(--space-8); color: var(--ink-650); font-size: 1.05rem; }
    .check-list { display: grid; gap: var(--space-4); margin: 0; padding: 0; list-style: none; }
    .check-list li { display: grid; grid-template-columns: 24px 1fr; gap: var(--space-3); align-items: start; }
    .check-list svg { color: var(--positive-700); margin-top: 3px; }
    .check-list strong { display: block; margin-bottom: 2px; }
    .check-list span { display: block; color: var(--ink-650); font-size: .88rem; }

    .alert-feed, .decision-panel {
      min-width: 0;
      overflow: hidden;
      border-radius: var(--radius-lg);
      background: var(--paper-0);
      box-shadow: var(--shadow-1);
    }
    .panel-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-5); border-bottom: 1px solid var(--paper-200); }
    .panel-head strong { font-size: .85rem; }
    .panel-head span { color: var(--ink-650); font-size: .75rem; }
    .feed-item { display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; gap: var(--space-4); align-items: start; padding: var(--space-5); border-bottom: 1px solid var(--paper-200); }
    .feed-item:last-child { border-bottom: 0; }
    .feed-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: var(--radius-md); background: var(--signal-100); color: var(--signal-700); }
    .feed-item strong { display: block; margin-bottom: var(--space-1); overflow-wrap: anywhere; font-size: .84rem; }
    .feed-item p { margin: 0; color: var(--ink-650); font-size: .78rem; line-height: 1.5; }
    .feed-item time { color: var(--ink-650); font-family: var(--font-mono); font-size: .75rem; white-space: nowrap; }

    .decision-panel { padding: var(--space-6); }
    .decision-top { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); padding-bottom: var(--space-5); border-bottom: 1px solid var(--paper-200); }
    .decision-top p { margin: var(--space-1) 0 0; color: var(--ink-650); font-size: .8rem; }
    .decision-price { text-align: right; }
    .decision-price strong { display: block; color: var(--signal-700); font-family: var(--font-mono); font-size: 1.9rem; line-height: 1; }
    .decision-price span { color: var(--ink-650); font-size: .75rem; }
    .margin-track { position: relative; height: 8px; margin: var(--space-12) 0 var(--space-5); background: var(--paper-200); }
    .margin-track::before { content: ""; position: absolute; inset: 0 28% 0 0; background: var(--ink-950); }
    .margin-track::after { content: ""; position: absolute; top: -7px; bottom: -7px; left: 28%; width: 2px; background: var(--signal-500); }
    .margin-legend { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
    .margin-legend small { display: block; color: var(--ink-650); font-size: .75rem; }
    .margin-legend strong { display: block; margin-top: var(--space-1); font-family: var(--font-mono); font-size: .9rem; }
    .decision-note { margin: var(--space-6) 0 0; padding: var(--space-4); border-radius: var(--radius-md); background: var(--paper-100); color: var(--ink-650); font-size: .82rem; }

    .temu-flow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--paper-200); }
    .flow-step { position: relative; min-width: 0; padding: var(--space-8); }
    .flow-step + .flow-step { border-left: 1px solid var(--paper-200); }
    .flow-step strong { display: block; margin-bottom: var(--space-3); font-size: 1.2rem; }
    .flow-step p { margin: 0; color: var(--ink-650); }
    .flow-step code { display: inline-block; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-650); font-family: var(--font-mono); font-size: .75rem; }

    /* Wide plan tables scroll inside their own box so the page never shifts sideways. */
    .table-scroll { overflow-x: auto; margin: var(--space-8) 0; -webkit-overflow-scrolling: touch; }
    .table-scroll .comparison-table { margin: 0; min-width: 34rem; }
    .comparison-table { width: 100%; margin: var(--space-8) 0; border-collapse: collapse; font-size: .92rem; }
    .comparison-table th, .comparison-table td { padding: var(--space-3) var(--space-4); border: 1px solid var(--paper-200); text-align: left; }
    .comparison-table thead th { background: var(--paper-100); font-weight: 750; }
    .comparison-table tbody th { font-weight: 650; color: var(--ink-650); white-space: nowrap; }
    .setup-steps { display: grid; gap: var(--space-5); margin: var(--space-8) 0 0; padding: 0; list-style: decimal; padding-inline-start: 1.4em; }
    .setup-steps li { color: var(--ink-650); }
    .setup-steps strong { display: block; margin-bottom: 2px; color: var(--ink-950); }
    .setup-steps code { font-family: var(--font-mono); font-size: .8rem; }

    .faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(2.5rem, 7vw, 6rem); align-items: start; }
    .faq-grid h2 { max-width: 8ch; }
    .faq-list { border-top: 1px solid var(--paper-200); }
    details { border-bottom: 1px solid var(--paper-200); }
    summary { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); cursor: pointer; font-weight: 750; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; color: var(--ink-500); font-size: 1.2rem; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 65ch; margin: 0; padding: 0 2.5rem var(--space-5) 0; color: var(--ink-650); }

    .final-cta { padding-block: var(--section-y); background: var(--inverse-bg); color: var(--inverse-fg); }
    .final-cta-inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .7fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: end; }
    .final-cta h2 { max-width: 11ch; margin: 0; }
    .final-cta .form-label { color: color-mix(in srgb, var(--inverse-fg) 82%, transparent); }
    .final-cta .form-note { color: color-mix(in srgb, var(--inverse-fg) 78%, transparent); }
    .final-cta .input { border-color: color-mix(in srgb, var(--inverse-fg) 22%, transparent); background: color-mix(in srgb, var(--inverse-fg) 10%, transparent); color: var(--inverse-fg); box-shadow: none; }
    .final-cta .input::placeholder { color: color-mix(in srgb, var(--inverse-fg) 72%, transparent); }

    footer { padding-block: var(--space-8); border-top: 1px solid color-mix(in srgb, var(--ink-950) 9%, transparent); }
    .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); color: var(--ink-500); font-size: .78rem; }
    .footer-links { display: flex; flex-wrap: wrap; gap: var(--space-5); }
    .footer-links a { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; text-decoration: none; }
    .footer-links a:hover { color: var(--ink-950); }

    @media (max-width: 900px) {
      .nav { display: none; }
      .header-actions { margin-left: auto; }
      .hero, .proof-split, .faq-grid, .final-cta-inner { grid-template-columns: 1fr; }
      .hero { min-height: 0; }
      .product-stage { max-width: 680px; }
      .platform-row { grid-template-columns: 1fr 1fr 1fr; }
      .platform-intro { grid-column: 1 / -1; min-height: 64px; padding: var(--space-4) 0; }
      .platform-item:first-of-type { border-left: 0; }
      .proof-copy h2, .faq-grid h2 { max-width: 14ch; }
      .final-cta h2 { max-width: 13ch; }
    }
    @media (max-width: 640px) {
      .container { width: min(var(--page-max), calc(100% - 1.25rem)); }
      .masthead-inner { min-height: 64px; gap: var(--space-2); min-width: 0; }
      /* The sign-in link and the primary CTA both open /login; on narrow
         screens the duplicate text link is what pushes the header past the
         viewport, so only the button survives. */
      .header-actions { min-width: 0; }
      .header-actions a.text-action[href^="/login"] { display: none; }
      /* Comparison tables are wider than a phone: each one scrolls inside its
         own box so the page itself never shifts sideways. */
      .comparison-table { display: block; overflow-x: auto; }
      .table-scroll .comparison-table { display: table; overflow: visible; }
      .brand-by, .language-wide { display: none; }
      .language-compact { display: inline; }
      .header-actions { gap: var(--space-2); }
      .header-utilities { gap: 0; padding-inline-end: var(--space-2); }
      .header-console { min-height: 44px; padding-inline: var(--space-3); font-size: .75rem; white-space: nowrap; }
      h1 { max-width: 11ch; font-size: 2.6rem; line-height: 1.08; }
      .hero { gap: var(--space-12); padding-block: var(--space-12) 4rem; }
      .hero-lede { font-size: 1rem; }
      .hero-proof { display: grid; grid-template-columns: 1fr; gap: var(--space-2); }
      .form-row { grid-template-columns: 1fr; }
      .form-row .button { width: 100%; }
      .stage-grid { grid-template-columns: 1fr; }
      .stage-chart { padding: var(--space-4); }
      .platform-row { grid-template-columns: 1fr; }
      .platform-intro { grid-column: auto; }
      .platform-item { min-height: 64px; padding: var(--space-4) 0; border-left: 0; border-top: 1px solid color-mix(in srgb, var(--ink-950) 10%, transparent); }
      .section-heading { margin-bottom: var(--space-10); }
      .signal-row { grid-template-columns: 42px 1fr; gap: var(--space-3); }
      .signal-row p { grid-column: 2; }
      .proof-split { gap: var(--space-12); }
      .feed-item { grid-template-columns: 38px minmax(0, 1fr); }
      .feed-icon { width: 38px; height: 38px; }
      .feed-item time { grid-column: 2; }
      .decision-top { display: grid; }
      .decision-price { text-align: left; }
      .margin-legend { grid-template-columns: 1fr; }
      .temu-flow { grid-template-columns: 1fr; }
      .flow-step { padding: var(--space-6) 0; }
      .flow-step + .flow-step { border-left: 0; border-top: 1px solid var(--paper-200); }
      .footer-inner { align-items: flex-start; flex-direction: column; }
      .footer-links { gap: var(--space-3); }
    }
    @media (max-width: 360px) {
      .container { width: min(var(--page-max), calc(100% - 1rem)); }
      .masthead-inner { gap: var(--space-1); min-width: 0; }
      .brand { gap: var(--space-2); }
      .header-actions { gap: var(--space-1); }
      .header-utilities { padding-inline-end: var(--space-1); }
      .nav a, .text-action { padding-inline: var(--space-2); }
      .header-console { padding-inline: var(--space-2); }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
      .button:active, .icon-action:active { transform: none; }
    }
    @media (prefers-reduced-transparency: reduce) {
      .masthead { background: var(--paper-50); backdrop-filter: none; }
    }
    @media (prefers-contrast: more) {
      :root { --paper-200: #7d7979; --ink-650: #444141; }
      body[data-theme="dark"] { --paper-200: #bdbdc3; --ink-650: #e5e5e7; }
    }