:root {
  --ink: #171b24;
  --ink-soft: #343b48;
  --muted: #788191;
  --faint: #9ca4b0;
  --line: #e5e9f0;
  --line-strong: #d6dde8;
  --canvas: #f6f8fb;
  --surface: #fff;
  --surface-soft: #f8faff;
  --blue: #536ff2;
  --blue-strong: #3865e8;
  --blue-wash: #edf2ff;
  --blue-line: #dce5ff;
  --green: #6c8b54;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 2px rgba(27, 40, 65, .03), 0 8px 24px rgba(27, 40, 65, .035);
  color: var(--ink);
  background: var(--canvas);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.65;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
html { min-height: 100%; scroll-behavior: smooth; background: var(--canvas); }
body { min-height: 100vh; margin: 0; overflow-x: hidden; background: var(--canvas); color: var(--ink); }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
.wrap { width: min(1200px, calc(100% - 64px)); margin-inline: auto; }
.header { position: sticky; top: 0; z-index: 20; height: 68px; border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .94); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.header-in { width: min(1320px, calc(100% - 64px)); height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font-size: 15px; font-weight: 700; letter-spacing: -.035em; white-space: nowrap; }
.brand img { width: 30px; height: 30px; }
.brand small { margin-left: 2px; color: var(--faint); font-size: 9px; font-weight: 550; letter-spacing: .13em; }
.nav { display: flex; align-items: center; gap: 27px; color: #596273; font-size: 12px; }
.nav a { transition: color .18s, background .18s, border-color .18s; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--blue-strong); }
.nav-cta { min-height: 36px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--blue-line); border-radius: var(--radius-sm); background: var(--blue-wash); color: var(--blue-strong) !important; font-weight: 650; }
.menu { display: none; border: 0; background: transparent; color: var(--ink); font-size: 22px; cursor: pointer; }
.hidden { display: none !important; }
.eyebrow, .kicker { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 10px; font-weight: 650; letter-spacing: .09em; text-transform: uppercase; }
.eyebrow:before { width: 16px; height: 1px; background: #aeb8c8; content: ""; }
.btn { min-height: 42px; padding: 0 17px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: #fff; color: var(--ink-soft); font-size: 12px; font-weight: 630; transition: transform .18s, box-shadow .18s, background .18s, border-color .18s; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(28, 55, 113, .08); }
.btn-primary { border-color: var(--blue-strong); background: linear-gradient(135deg, #4787f3, #5a67ec); color: #fff; box-shadow: 0 2px 6px rgba(66, 112, 232, .18); }
.btn-primary:hover { border-color: #3159d7; background: linear-gradient(135deg, #3979e7, #4f5fdc); }
.btn-secondary { border-color: var(--line-strong); background: #fff; color: var(--ink-soft); }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 25px; }
.text-link { display: inline-flex; margin-top: 15px; color: var(--blue-strong); font-size: 11px; font-weight: 600; }
.hero { position: relative; min-height: 580px; padding: 105px 0 90px; display: flex; align-items: center; background: radial-gradient(ellipse at 77% 45%, rgba(219, 231, 255, .55), transparent 38%), linear-gradient(115deg, #fff 0%, #fff 53%, #f4f7ff 100%); }
.hero .wrap { width: min(1200px, calc(100% - 64px)); }
.hero-copy { width: min(700px, 100%); animation: rise-in .7s ease-out both; }
.hero h1 { max-width: 760px; margin: 18px 0 18px; color: var(--ink); font-size: clamp(46px, 6vw, 72px); font-weight: 680; line-height: 1.08; letter-spacing: -.065em; }
.hero h1 em { color: var(--blue-strong); font-style: normal; }
.hero .eyebrow { color: var(--blue-strong); }
.hero .eyebrow:before { width: 7px; height: 7px; border-radius: 50%; background: #6f8df3; }
.hero .lead { max-width: 550px; margin: 0; color: #626d7e; font-size: 15px; line-height: 1.85; }
.hero .product-shot { display: none; }
.home-hero:after { position: absolute; right: max(5vw, 32px); bottom: 25px; left: max(5vw, 32px); color: #9ba5b4; font-size: 9px; letter-spacing: .14em; text-transform: uppercase; content: "MI HOU AI  ·  VIDEO CREATION WORKSPACE                                  EXPLORE THE WORKFLOW  ↓"; white-space: pre; }
.steps { border-block: 1px solid var(--line); background: #fff; }
.steps-in { width: min(940px, calc(100% - 64px)); min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.step { display: flex; align-items: center; gap: 10px; color: #485161; font-size: 11px; font-weight: 580; white-space: nowrap; }
.step b { color: var(--blue-strong); font-size: 9px; font-weight: 650; letter-spacing: .08em; }
.section { padding: 78px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 24px; }
.section h2, .page-title { margin: 8px 0 0; color: var(--ink); font-size: clamp(28px, 3.6vw, 42px); font-weight: 650; line-height: 1.2; letter-spacing: -.05em; }
.section-lead { max-width: 440px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.85; }
.feature-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.feature-row { min-height: 172px; display: grid; grid-template-columns: 1fr auto; align-content: start; gap: 8px 14px; padding: 20px 21px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-card); }
.feature-index { grid-column: 1 / -1; color: var(--blue-strong); font-size: 9px; font-weight: 700; letter-spacing: .09em; }
.feature-row h3 { margin: 0; color: var(--ink); font-size: 16px; letter-spacing: -.03em; }
.feature-row p { grid-column: 1 / -1; max-width: 520px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.feature-row a { align-self: start; color: var(--blue-strong); font-size: 11px; font-weight: 650; white-space: nowrap; }
.callout { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-card); }
.callout h3 { margin: 0 0 6px; color: var(--ink); font-size: 18px; letter-spacing: -.035em; }
.callout p { max-width: 660px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.workflow-board { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.workflow-step { min-height: 146px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-card); }
.workflow-step > span { width: 29px; height: 29px; display: grid; place-items: center; margin-bottom: 15px; border: 1px solid var(--blue-line); border-radius: 8px; background: var(--blue-wash); color: var(--blue-strong); font-size: 10px; font-weight: 700; }
.workflow-step strong { display: block; color: var(--ink); font-size: 13px; }
.workflow-step p { margin: 6px 0 0; color: var(--muted); font-size: 10px; line-height: 1.7; }
.workflow-board-wide { margin-bottom: 18px; }
.demo-placeholder { min-height: 300px; display: flex; align-items: center; justify-content: center; flex-direction: column; padding: 35px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: radial-gradient(ellipse at 50% 35%, #f2f6ff, #fff 70%); text-align: center; box-shadow: var(--shadow-card); }
.demo-play { width: 52px; height: 52px; display: grid; place-items: center; margin-bottom: 16px; padding-left: 3px; border: 1px solid var(--blue-line); border-radius: 50%; background: #fff; color: var(--blue-strong); font-size: 15px; box-shadow: 0 4px 16px rgba(56, 101, 232, .1); }
.demo-placeholder strong { color: var(--ink); font-size: 16px; }
.demo-placeholder p { max-width: 460px; margin: 7px 0 0; color: var(--muted); font-size: 12px; }
.product-shot { display: none; }
.shot-caption { display: none; }
.page { min-height: calc(100vh - 150px); padding: 57px 0 76px; }
.page-intro { max-width: 790px; margin-bottom: 28px; padding: 31px 32px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(125deg, #fff 0%, #fff 66%, #f4f7ff 100%); box-shadow: var(--shadow-card); }
.page-intro .eyebrow { color: var(--blue-strong); }
.page-intro .lead { max-width: 670px; margin: 13px 0 0; color: #687384; line-height: 1.8; }
.page-intro .actions { margin-top: 21px; }
.demo-note { margin: 12px 0; color: var(--muted); font-size: 11px; }
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; align-items: start; gap: 65px; padding-top: 32px; }
.contact-copy { padding-top: 16px; }
.contact-copy .page-title { max-width: 490px; margin: 14px 0 20px; }
.contact-copy p { max-width: 490px; color: #687384; font-size: 13px; line-height: 1.9; }
.notice { margin-top: 17px; padding: 12px 14px; border: 1px solid var(--blue-line); border-left: 3px solid #7897f6; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: #f2f6ff; color: #66738a; font-size: 11px; line-height: 1.75; }
.form { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; color: var(--ink); box-shadow: var(--shadow-card); }
.field { margin-bottom: 14px; }
.field label { display: block; margin-bottom: 6px; color: #485161; font-size: 11px; font-weight: 650; }
.field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); outline: 0; background: #fff; color: var(--ink); font-size: 12px; }
.field input::placeholder, .field textarea::placeholder { color: #a1a9b5; }
.field select option { color: var(--ink); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: #829cf4; box-shadow: 0 0 0 3px rgba(83, 111, 242, .12); }
.field textarea { min-height: 100px; resize: vertical; }
.consent { display: flex; align-items: flex-start; gap: 8px; color: #737d8c; font-size: 10px; line-height: 1.65; }
.consent input { margin: 3px 0 0; accent-color: var(--blue-strong); }
.consent a { color: var(--blue-strong); }
.form .btn { width: 100%; margin-top: 15px; cursor: pointer; }
.form-state { min-height: 18px; margin-top: 8px; color: var(--blue-strong); font-size: 10px; }
.platform-list { border-top: 1px solid var(--line); }
.platform { min-height: 112px; display: grid; grid-template-columns: 1fr 1.2fr auto; align-items: center; gap: 20px; padding: 17px 18px; border: 1px solid var(--line); border-top: 0; background: #fff; }
.platform:first-child { border-radius: var(--radius-md) var(--radius-md) 0 0; }
.platform:last-child { border-radius: 0 0 var(--radius-md) var(--radius-md); }
.platform-name { display: flex; align-items: center; gap: 13px; }
.platform-icon { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--blue-line); border-radius: 9px; background: var(--blue-wash); color: var(--blue-strong); font-size: 10px; font-weight: 700; }
.platform h3 { margin: 0; color: var(--ink); font-size: 14px; }
.platform p, .platform-meta { margin: 2px 0 0; color: var(--muted); font-size: 10px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { display: flex; justify-content: space-between; padding: 15px 2px; color: var(--ink-soft); font-size: 12px; font-weight: 600; list-style: none; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:after { color: var(--blue-strong); font-size: 15px; content: "+"; }
.faq-item[open] summary:after { content: "−"; }
.faq-item p { margin: 0; padding: 0 25px 14px 2px; color: var(--muted); font-size: 11px; line-height: 1.8; }
.footer { padding: 31px 0 16px; border-top: 1px solid var(--line); background: #fff; }
.footer-top { display: flex; justify-content: space-between; gap: 35px; }
.footer-about p { max-width: 270px; color: var(--muted); font-size: 11px; }
.footer-nav { display: flex; gap: 48px; }
.footer-col strong { display: block; margin-bottom: 9px; color: var(--ink-soft); font-size: 10px; }
.footer-col a, .footer-col span { display: block; margin: 6px 0; color: var(--muted); font-size: 10px; }
.footer-col a:hover { color: var(--blue-strong); }
.footer-bottom { display: flex; justify-content: space-between; gap: 12px; margin-top: 22px; padding-top: 12px; border-top: 1px solid var(--line); color: var(--faint); font-size: 9px; }
.main.wrap { width: min(1120px, calc(100% - 64px)); margin: 34px auto 60px; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-card); }
.main.wrap h1 { margin: 10px 0 13px; color: var(--ink); font-size: clamp(30px, 4vw, 48px); font-weight: 660; line-height: 1.14; letter-spacing: -.055em; }
.main.wrap h2, .main.wrap strong { color: var(--ink-soft); }
.main.wrap p, .main.wrap li, .main.wrap .lead, .main.wrap .intro { color: var(--muted); }
.main.wrap .tag { color: var(--blue-strong); font-size: 10px; font-weight: 700; letter-spacing: .1em; }
.main.wrap .draft { display: inline-block; margin: 7px 0 19px; padding: 5px 10px; border: 1px solid var(--blue-line); border-radius: 999px; background: var(--blue-wash); color: #586b9b; font-size: 10px; }
.main.wrap .notice { border: 1px solid var(--blue-line); border-left: 3px solid #7897f6; background: #f2f6ff; color: #66738a; }
.main.wrap .cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 26px; }
.main.wrap .cards .card { min-height: 220px; padding: 23px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; color: var(--ink); box-shadow: var(--shadow-card); }
.main.wrap .cardtop { display: flex; align-items: center; gap: 13px; }
.main.wrap .os { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--blue-line); border-radius: 10px; background: var(--blue-wash); color: var(--blue-strong); font-size: 11px; font-weight: 700; }
.main.wrap .meta { display: flex; gap: 15px; margin: 15px 0; padding-top: 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.main.wrap .state { color: var(--muted); font-size: 11px; }
.main.wrap .button { min-height: 36px; padding: 0 13px; display: inline-flex; align-items: center; border: 1px solid var(--blue-strong); border-radius: var(--radius-sm); background: var(--blue-strong); color: #fff; font-size: 11px; font-weight: 650; }
.main.wrap .button.disabled { border-color: var(--line); background: #f4f6f9; color: #9ba3af; }
.main.wrap a:not(.button) { color: var(--blue-strong); }
.main.wrap .help { padding-top: 17px; border-top: 1px solid var(--line); color: var(--muted); }
.main.wrap .foot, .foot { padding: 15px 0; border-top: 1px solid var(--line); color: var(--faint); font-size: 10px; }
body.policy-page { background: var(--canvas); }
body.policy-page .header { position: sticky; top: 0; }
body.policy-page .main.wrap { width: min(820px, calc(100% - 64px)); margin-top: 34px; padding: 34px; }
body.policy-page .main.wrap h2 { margin: 30px 0 8px; font-size: 18px; }
body.policy-page .main.wrap p { font-size: 13px; line-height: 1.8; }
@keyframes rise-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 900px) {
  .header-in { width: calc(100% - 44px); }
  .nav { gap: 18px; }
  .hero { min-height: 530px; padding: 86px 0 78px; }
  .contact-grid { gap: 34px; }
  .section { padding: 63px 0; }
}
@media (max-width: 650px) {
  .wrap, .hero .wrap { width: calc(100% - 34px); }
  .header { height: 62px; }
  .header-in { width: calc(100% - 34px); }
  .brand { font-size: 14px; }
  .brand img { width: 27px; height: 27px; }
  .menu { display: block; }
  .nav { position: absolute; top: 61px; right: 17px; left: 17px; display: none; align-items: stretch; flex-direction: column; gap: 0; padding: 8px 12px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; box-shadow: 0 12px 34px rgba(26, 41, 72, .12); color: var(--ink-soft); }
  .nav.open { display: flex; }
  .nav a, .nav a[aria-current="page"] { padding: 10px 6px; color: var(--ink-soft); }
  .nav a:hover, .nav a[aria-current="page"] { color: var(--blue-strong); }
  .nav .nav-cta { justify-content: center; margin: 5px 0 2px; }
  .hero { min-height: 555px; padding: 96px 0 86px; }
  .hero h1 { margin: 17px 0; font-size: clamp(43px, 12vw, 62px); }
  .hero .lead { max-width: 370px; font-size: 13px; }
  .hero .actions { gap: 8px; }
  .btn { min-height: 40px; padding: 0 13px; font-size: 10px; }
  .home-hero:after { right: 17px; bottom: 17px; left: 17px; overflow: hidden; font-size: 7px; }
  .steps-in { width: calc(100% - 34px); min-height: 61px; justify-content: flex-start; gap: 11px; overflow-x: auto; }
  .step { gap: 6px; font-size: 9px; }
  .section { padding: 48px 0; }
  .section-head { display: block; margin-bottom: 19px; }
  .section h2, .page-title { font-size: 29px; }
  .section-lead { margin-top: 9px; font-size: 11px; }
  .feature-list { grid-template-columns: 1fr; gap: 9px; }
  .feature-row { min-height: 0; padding: 17px; }
  .workflow-board { grid-template-columns: 1fr 1fr; gap: 8px; }
  .workflow-step { min-height: 138px; padding: 15px; }
  .demo-placeholder { min-height: 245px; padding: 25px 18px; }
  .callout { align-items: flex-start; flex-direction: column; gap: 15px; padding: 19px 17px; }
  .page { padding: 36px 0 56px; }
  .page-intro { margin-bottom: 20px; padding: 22px 19px; border-radius: var(--radius-md); }
  .contact-grid { grid-template-columns: 1fr; gap: 16px; padding-top: 18px; }
  .contact-copy { padding: 5px 0; }
  .form { padding: 18px; }
  .footer-top { display: block; }
  .footer-nav { gap: 36px; margin-top: 20px; }
  .footer-bottom { font-size: 8px; }
  .platform { grid-template-columns: 1fr auto; gap: 9px; padding: 15px; }
  .platform-meta { grid-column: 1 / -1; grid-row: 2; }
  .main.wrap { width: calc(100% - 34px); margin: 22px auto 40px; padding: 20px 17px; }
  .main.wrap .cards { grid-template-columns: 1fr; }
  .main.wrap .cards .card { min-height: 0; padding: 18px; }
  .main.wrap .meta { flex-wrap: wrap; gap: 6px 13px; }
  body.policy-page .main.wrap { width: calc(100% - 34px); margin-top: 22px; padding: 21px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

.icp-link { color: inherit; text-decoration: underline; text-underline-offset: 2px; }