:root {
  --blue: #1f3cff;
  --blue-dark: #162dcc;
  --blue-soft: #eef2ff;
  --ink: #0a0f1a;
  --muted: #5d667a;
  --line: #dfe3ec;
  --soft: #f7f8fc;
  --ocean: #071b4a;
  --success: #18794e;
  --success-soft: #edf8f2;
  --warning: #8a4b08;
  --warning-soft: #fff8e8;
  --danger: #c5221f;
  --danger-soft: #fff0ef;
  --max: 1248px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

html { color-scheme: light; }
body { overflow-x: clip; color: var(--ink); font-family: var(--font); -webkit-font-smoothing: antialiased; }
.shell { width: min(calc(100% - 48px), var(--max)); }
.site-header { height: 80px; border-bottom: 0; background: rgba(255,255,255,.98); backdrop-filter: blur(16px); }
.header-inner { height: 80px; }
.brand { width: 120px; }
.desktop-nav { justify-content: center; gap: 30px; margin-left: 0; }
.desktop-nav a,
.login-link { font-size: 14px; font-weight: 600; }
.desktop-nav a::after { bottom: -13px; }
.button,
.header-start,
.oc-btn,
.need-submit { border-radius: var(--radius-pill); }
.button-primary,
.header-start,
.oc-btn { background: var(--blue); }
.button-primary:hover,
.header-start:hover,
.oc-btn:hover { background: var(--blue-dark); }
.button-secondary { color: var(--blue); border-color: var(--blue); }
.button-secondary:hover { background: var(--blue-soft); }
.eyebrow { margin-bottom: 14px; color: var(--blue); font-size: 13px; font-weight: 700; letter-spacing: 1.2px; }

/* Homepage */
.home-page .announcement { padding: 20px 0; }
.home-page .announcement-card {
  min-height: 72px;
  padding: 0 28px;
  border-radius: var(--radius-md);
  background: var(--blue-soft);
}
.home-page .announcement-title { font-size: 16px; font-weight: 600; }
.home-page .announcement-action { color: var(--blue); }
.home-page .hero {
  min-height: 720px;
  margin-top: 0;
  display: grid;
  grid-template-columns: minmax(0, 584px) minmax(0, 560px);
  justify-content: space-between;
  align-items: center;
  gap: 72px;
  overflow: visible;
  border-radius: 0;
  background: #fff;
}
.home-page .hero-media {
  position: relative;
  inset: auto;
  width: 560px;
  height: 540px;
  grid-column: 2;
  grid-row: 1;
  overflow: hidden;
  border-radius: var(--radius-lg);
}
.home-page .hero-frame { display: none; animation: none; transform: none; }
.home-page .hero-frame-one { display: block; opacity: 1; object-position: center; }
.home-page .hero-shade,
.home-page .hero-motion { display: none; }
.home-page .hero-content {
  position: relative;
  z-index: 2;
  width: auto;
  padding: 0;
  grid-column: 1;
  grid-row: 1;
  color: var(--ink);
}
.home-page .eyebrow-light { color: var(--blue); }
.home-page .hero h1 { font-size: clamp(50px, 4.5vw, 64px); line-height: 1.16; font-weight: 700; letter-spacing: -1.6px; }
.home-page .hero-copy { max-width: 560px; margin: 24px 0; color: var(--muted); font-size: 18px; line-height: 1.7; }
.home-page .need-finder { width: 100%; }
.home-page .role-switch { width: max-content; padding: 4px; background: var(--soft); backdrop-filter: none; }
.home-page .role-option { min-height: 42px; padding: 0 20px; color: var(--muted); border: 0; }
.home-page .role-option.is-active { color: var(--blue); background: #fff; box-shadow: 0 1px 3px rgba(10,15,26,.08); }
.home-page .need-input-row { width: 100%; margin-top: 18px; padding: 7px 7px 7px 22px; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: 0 12px 34px rgba(10,15,26,.06); }
.home-page .need-input-row input { height: 56px; padding-left: 0; color: var(--ink); border-radius: 0; }
.home-page .need-submit { min-width: 126px; min-height: 48px; background: var(--blue); }
.home-page .search-symbol { display: none; }
.home-page .quick-needs { margin-top: 16px; gap: 0; color: var(--muted); }
.home-page .quick-needs > span { color: var(--muted); }
.home-page .quick-needs button { padding: 0 7px; color: var(--muted); border: 0; border-radius: 0; background: transparent; }
.home-page .quick-needs button + button::before { margin-right: 12px; color: #b0b7c3; content: "·"; }

.primary-entrances { padding: 72px 0; background: var(--soft); }
.primary-entrances .section-heading { max-width: 900px; margin-bottom: 38px; }
.primary-entrances .section-heading h2 { margin: 0; font-size: clamp(34px, 3.2vw, 40px); line-height: 1.3; }
.primary-entrances .section-heading > p:not(.eyebrow) { margin-top: 16px; }
.entrance-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 42px; }
.entrance-item { position: relative; min-width: 0; padding-top: 18px; border-top: 2px solid var(--blue); }
.entrance-item span { color: var(--blue); font-family: Poppins, var(--font); font-size: 12px; font-weight: 700; letter-spacing: 1px; }
.entrance-item h3 { margin: 12px 0 8px; font-size: 22px; font-weight: 600; }
.entrance-item p { min-height: 44px; margin: 0 0 14px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.entrance-item b { color: var(--blue); font-size: 14px; font-weight: 500; }

.home-page .section { padding: 80px 0; }
.home-page .section-heading { margin-bottom: 42px; }
.home-page .section-heading h2,
.home-page .path-band h2,
.home-page .final-cta h2 { font-size: clamp(34px, 3.4vw, 40px); line-height: 1.3; letter-spacing: -.6px; }
.home-page .section-heading > p:not(.eyebrow),
.home-page .split-heading > p { margin-top: 16px; font-size: 16px; line-height: 1.7; }
.home-page .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 120px; }
.home-page .service-tile {
  min-height: 92px;
  padding: 16px 20px;
  display: grid;
  grid-template-columns: minmax(140px, .8fr) 1.2fr auto;
  align-items: center;
  gap: 20px;
  border-radius: var(--radius-md);
  box-shadow: none;
}
.home-page .service-tile:hover { transform: translateX(4px); border-color: #b8c4ff; box-shadow: none; }
.home-page .service-tile-top { display: none; }
.home-page .service-tile h3 { margin: 0; font-size: 17px; }
.home-page .service-tile p { margin: 0; font-size: 13px; }
.home-page .service-tile::after { color: var(--blue); font-size: 18px; content: "→"; }
.home-page .ocean { padding: 88px 0 72px; background: var(--ocean); }
.home-page .ocean-layout { min-height: 500px; gap: 64px; }
.home-page .ocean-copy h2 { font-size: clamp(38px, 3.6vw, 48px); }
.home-page .ocean-product { padding-left: 32px; }
.home-page .market-grid { grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--line); }
.home-page .market-item {
  min-height: 160px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  align-items: center;
  gap: 36px;
  border-width: 0 0 1px;
  border-radius: 0;
}
.home-page .market-item:hover { transform: none; box-shadow: none; background: var(--soft); }
.home-page .market-item img { order: 2; width: 220px; height: 124px; border-radius: var(--radius-sm); }
.home-page .market-item > div { order: 1; min-height: auto; padding: 22px 0; display: grid; grid-template-columns: 40px 220px minmax(0, 1fr) 160px; gap: 28px; align-items: center; }
.home-page .market-item span { grid-column: 1; }
.home-page .market-item h3 { grid-column: 2; margin: 0; font-size: 22px; }
.home-page .market-item p { grid-column: 3; }
.home-page .market-item b { position: static; grid-column: 4; color: var(--blue); font-weight: 500; }
.home-page .two-paths { padding: 72px 0; background: var(--soft); }
.home-page .two-paths-layout { grid-template-columns: 1fr 1fr; gap: 0; align-items: stretch; }
.home-page .path-band,
.home-page .provider-band { min-height: 340px; padding: 44px 48px; border-radius: 0; }
.home-page .school-band { background: var(--blue-soft); }
.home-page .provider-band { background: var(--blue); }
.home-page .final-cta { padding: 80px 0; }
.home-page .footer { margin-top: 0; }

/* Shared footer and dialogs */
.footer { padding: 56px 0 30px; color: var(--ink); background: var(--soft); }
.footer-grid { gap: 56px; padding: 28px; background: #fff; }
.footer-brand img { width: 120px; content: url("/assets/img/chiiss-wordmark-positive.png"); }
.footer-brand p,
.footer-grid > div:not(.footer-brand) a { color: var(--muted); }
.footer h3 { color: var(--ink); }
.footer-grid a:hover { color: var(--blue); }
.footer-bottom { color: var(--muted); border-top: 0; }
.oc-ovl { background: rgba(10,15,26,.56); backdrop-filter: blur(8px); }
.oc-modal { border-radius: var(--radius-lg); box-shadow: 0 24px 64px rgba(10,15,26,.22); }
.oc-hd { padding: 24px 28px; border-bottom: 0; font-size: 24px; }
.oc-bd { padding: 0 28px 28px; }
.oc-bd input { height: 52px; border-radius: var(--radius-md); }
.oc-bd input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(31,60,255,.1); }
.error-page-body .error-page h1 { color: var(--blue); font-family: Poppins, var(--font); }
.error-page-body .error-page .button-primary { color: #fff; background: var(--blue); }

/* Education applications */
.applications-page .apps-intro { padding: 88px 0 80px; }
.applications-page .apps-title-row h1 { max-width: 880px; font-size: clamp(44px, 5vw, 64px); line-height: 1.2; }
.applications-page .apps-title-row p { max-width: 780px; font-size: 18px; }
.applications-page .app-screen { min-height: 0; padding: 64px 0; }
.applications-page .app-screen-inner { grid-template-columns: minmax(0, 520px) minmax(0, 520px); justify-content: space-between; gap: 56px; }
.applications-page .app-screen-reverse .app-screen-inner { grid-template-columns: minmax(0, 520px) minmax(0, 520px); }
.applications-page .app-screen-soft,
.applications-page #ocean-ai,
.applications-page #mistake-book,
.applications-page #language-practice { background: #fff; }
.applications-page #application-planner,
.applications-page #growth-profile { background: var(--soft); }
.applications-page .app-number { margin-bottom: 26px; }
.applications-page .app-copy h2 { font-size: clamp(34px, 3.2vw, 40px); }
.applications-page .app-tagline { color: var(--blue); font-size: 18px; }
.applications-page .app-visual { min-height: 420px; }
.applications-page .app-window { min-height: 390px; border-radius: var(--radius-lg); box-shadow: 0 20px 50px rgba(10,15,26,.1); }
.applications-page .app-screen-dark { background: var(--ocean); }

/* Responsibility and join */
.company-page .simple-hero { padding: 96px 0; background: #fff; }
.company-page .simple-hero-copy { max-width: 900px; margin: 0; text-align: left; }
.company-page .simple-hero h1 { max-width: 900px; margin: 0; font-size: clamp(44px, 5vw, 64px); }
.company-page .simple-hero-copy > p:last-child { max-width: 780px; margin: 24px 0 0; }
.company-page .simple-hero-banner { display: none; }
.company-page.motion-ready .simple-hero [data-reveal] { opacity: 1; transform: none; }
.responsibility-page .simple-hero { color: #fff; background: var(--ocean); }
.responsibility-page .simple-hero-copy > p:last-child { color: #cad4ff; }
.responsibility-page .simple-hero .eyebrow { color: #fff; }
.company-page .standard-section { padding: 80px 0; }
.company-page .section-heading { margin-bottom: 36px; }
.company-page .section-heading-centered { margin-left: 0; text-align: left; }
.company-page .section-heading-centered > p:last-child { margin-left: 0; }
.company-page .plain-card-grid { gap: 16px; }
.company-page .plain-card { min-height: 230px; padding: 24px; border-radius: 16px; }
.company-page .plain-card:hover { transform: none; box-shadow: none; border-color: #b8c4ff; }
.company-page .plain-card h3 { margin-top: 48px; }
.company-page .feature-row { min-height: 430px; border-radius: var(--radius-lg); box-shadow: none; }
.company-page .feature-copy { padding: 48px; }
.company-page .contact-panel { padding: 40px; border-radius: var(--radius-lg); background: var(--blue); color: #fff; }
.company-page .contact-panel p { color: #e4e9ff; }
.company-page .contact-panel .button { color: var(--blue); background: #fff; }
.company-page .process-list { border-top-color: var(--line); }
.company-page .process-list li { min-height: 200px; }

/* Consultation workspace */
.consult-page .consult-main { min-height: calc(100vh - 80px); background: #fff; }
.consult-page .chat-sidebar { width: 288px; color: #fff; border-right: 0; background: var(--ocean); }
.consult-page .sidebar-search { padding: 18px 20px; border-bottom-color: rgba(255,255,255,.12); background: var(--ocean); }
.consult-page .sidebar-search svg,
.consult-page .search-shortcut { display: none; }
.consult-page .sidebar-search input { color: #fff; border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.08); }
.consult-page .sidebar-search input::placeholder { color: #cad4ff; }
.consult-page .sidebar-actions { padding: 8px 20px; }
.consult-page .action-item { color: #fff; border-radius: var(--radius-pill); background: var(--blue); }
.consult-page .action-shortcut { display: none; }
.consult-page .sidebar-section-title { padding: 22px 24px 10px; color: #cad4ff; }
.consult-page .sidebar-list { padding: 0 16px; }
.consult-page .sidebar-item { color: #fff; border-radius: var(--radius-md); }
.consult-page .sidebar-item:hover,
.consult-page .sidebar-item.is-active { background: rgba(255,255,255,.1); }
.consult-page .sidebar-empty { color: #cad4ff; }
.consult-page .sidebar-bottom-user { border-top-color: rgba(255,255,255,.14); }
.consult-page .bottom-user-name,
.consult-page .sidebar-bottom-user svg:last-child { color: #fff; }
.consult-page .bottom-user-avatar { color: #fff; background: var(--blue); }
.consult-page .welcome-section { padding: 72px; align-items: flex-start; }
.consult-page .welcome-section::before { margin-bottom: 16px; color: var(--blue); font-family: Poppins, var(--font); font-size: 13px; font-weight: 700; letter-spacing: 1px; content: "OCEAN AI · BUSINESS"; }
.consult-page .welcome-title { max-width: 760px; margin-bottom: 24px; color: var(--ink); font-size: clamp(32px, 4vw, 42px); text-align: left; }
.consult-page .welcome-title::after { display: block; max-width: 720px; margin-top: 16px; color: var(--muted); font-size: 17px; font-weight: 400; line-height: 1.7; content: "描述目标、已有材料和限制条件，我会先帮你梳理问题，再给出可以继续推进的路径。"; }
.consult-page .quick-topics { max-width: 780px; justify-content: flex-start; }
.consult-page .quick-topic { padding: 10px 14px; color: var(--blue); border: 0; border-radius: var(--radius-pill); background: var(--blue-soft); }
.consult-page .quick-topic:hover { color: #fff; background: var(--blue); }
.consult-page .chat-input-area { padding: 0 72px 28px; }
.consult-page .input-wrapper { max-width: 780px; margin: 0; padding: 8px; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: 0 12px 32px rgba(10,15,26,.06); }
.consult-page .chat-send { background: var(--blue); }
.consult-page .chat-disclaimer { max-width: 780px; margin: 10px 0 0; text-align: left; }

/* Service center */
.service-center-page { background: var(--soft); }
.service-center-page .topbar { height: 80px; padding: 0 max(24px,calc((100vw - 1248px)/2)); border-bottom: 0; }
.service-center-page .topbar .brand img { width: 120px; }
.service-center-page .topbar nav { justify-content: center; }
.service-center-page .topbar a { font-weight: 600; }
.service-center-page .login-link,
.service-center-page .refresh,
.service-center-page .primary,
.service-center-page .action { border-radius: var(--radius-pill); }
.service-center-page main { max-width: 1248px; padding: 64px 24px 88px; }
.service-center-page .hero { margin-bottom: 32px; padding: 0; align-items: center; }
.service-center-page .hero h1 { margin: 10px 0 8px; font-size: clamp(36px, 4vw, 48px); }
.service-center-page .summary { grid-template-columns: repeat(4,1fr); gap: 16px; }
.service-center-page .metric { min-height: 120px; padding: 20px; border: 0; border-radius: var(--radius-md); }
.service-center-page .metric:first-child { background: var(--blue-soft); }
.service-center-page .panel { border-radius: 16px; }
.service-center-page th { background: var(--soft); }
.service-center-page .status { background: var(--blue-soft); color: var(--blue); }
.service-center-page .status.paid,
.service-center-page .status.closed,
.service-center-page .status.confirmed { background: var(--success-soft); color: var(--success); }
.service-center-page .empty { padding: 64px; border: 0; border-radius: 16px; }
.service-center-page .login-overlay { background: rgba(10,15,26,.56); backdrop-filter: blur(8px); }
.service-center-page .login-card { border-radius: var(--radius-lg); box-shadow: 0 24px 64px rgba(10,15,26,.22); }
.service-center-page .login-card input { height: 52px; border-radius: var(--radius-md); }

@media (max-width: 1180px) {
  .home-page .hero { grid-template-columns: minmax(0, 1fr) minmax(380px, .85fr); gap: 42px; }
  .home-page .hero-media { width: 100%; }
  .entrance-grid { gap: 24px; }
  .home-page .service-grid { column-gap: 32px; }
  .home-page .market-item > div { grid-template-columns: 40px 180px minmax(0,1fr) 130px; gap: 20px; }
}

@media (max-width: 980px) {
  .site-header { height: 68px; }
  .header-inner { height: 68px; }
  .mobile-menu { top: 68px; height: calc(100vh - 68px); }
  .home-page .hero { min-height: auto; padding: 64px 0; grid-template-columns: 1fr; }
  .home-page .hero-content { grid-column: 1; grid-row: 1; }
  .home-page .hero-media { width: 100%; height: 520px; grid-column: 1; grid-row: 2; }
  .entrance-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 36px 24px; }
  .home-page .service-grid { gap: 12px 32px; }
  .home-page .market-item { grid-template-columns: 1fr 180px; }
  .home-page .market-item img { width: 180px; }
  .home-page .market-item > div { grid-template-columns: 34px 150px 1fr; }
  .home-page .market-item b { grid-column: 3; }
  .applications-page .app-screen-inner,
  .applications-page .app-screen-reverse .app-screen-inner { grid-template-columns: 1fr; }
  .consult-page .welcome-section { padding: 40px; }
  .consult-page .chat-input-area { padding-right: 40px; padding-left: 40px; }
}

@media (max-width: 680px) {
  .shell { width: calc(100% - 48px); }
  .brand { width: 104px; }
  .home-page .announcement { padding: 12px 0; }
  .home-page .announcement-card { min-height: 56px; }
  .home-page .hero { width: 100%; padding: 52px 24px 64px; gap: 32px; }
  .home-page .hero h1 { font-size: 40px; letter-spacing: -.8px; }
  .home-page .hero-copy { font-size: 16px; }
  .home-page .role-switch { width: 100%; }
  .home-page .role-option { flex: 1; padding: 0 10px; font-size: 13px; }
  .home-page .need-input-row { display: flex; padding-left: 16px; border-radius: var(--radius-lg); }
  .home-page .need-submit { min-width: 92px; padding: 0 16px; }
  .home-page .hero-media { height: 360px; }
  .primary-entrances { padding: 64px 0; }
  .entrance-grid { grid-template-columns: 1fr; gap: 28px; }
  .entrance-item p { min-height: 0; }
  .home-page .section { padding: 64px 0; }
  .home-page .section-heading h2,
  .home-page .path-band h2,
  .home-page .final-cta h2 { font-size: 30px; }
  .home-page .service-grid { grid-template-columns: 1fr; gap: 10px; }
  .home-page .service-tile { min-height: 88px; grid-template-columns: 110px 1fr auto; gap: 12px; padding: 14px 16px; }
  .home-page .ocean-layout { display: block; }
  .home-page .ocean-product { margin-top: 36px; }
  .home-page .ocean-journey { grid-template-columns: 1fr; }
  .home-page .market-item { min-height: 188px; grid-template-columns: 1fr 112px; gap: 12px; }
  .home-page .market-item img { width: 112px; height: 132px; }
  .home-page .market-item > div { padding: 20px 0; display: block; }
  .home-page .market-item span { font-size: 10px; }
  .home-page .market-item h3 { margin: 8px 0; font-size: 20px; }
  .home-page .market-item p { display: none; }
  .home-page .market-item b { display: block; margin-top: 16px; }
  .home-page .two-paths-layout { grid-template-columns: 1fr; }
  .home-page .path-band,
  .home-page .provider-band { min-height: 360px; padding: 40px 24px; }
  .footer { padding-top: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding: 24px; }
  .footer-brand { grid-column: auto; }
  .footer-grid > div:last-child { grid-column: auto; }
  .company-page .simple-hero { padding: 72px 0; }
  .company-page .simple-hero h1 { font-size: 40px; }
  .company-page .standard-section { padding: 64px 0; }
  .company-page .plain-card { min-height: 210px; }
  .company-page .feature-copy { padding: 32px 24px; }
  .company-page .contact-panel { grid-template-columns: 1fr; padding: 28px 24px; }
  .applications-page .apps-intro { padding: 64px 0; }
  .applications-page .apps-title-row h1 { font-size: 40px; }
  .applications-page .app-screen { padding: 56px 0; }
  .applications-page .app-visual { min-height: 360px; }
  .consult-page .consult-main { min-height: calc(100vh - 68px); }
  .consult-page .chat-sidebar { display: none; }
  .consult-page .welcome-section { padding: 48px 24px 24px; justify-content: flex-start; }
  .consult-page .welcome-title { font-size: 30px; }
  .consult-page .quick-topics { display: grid; width: 100%; }
  .consult-page .quick-topic { text-align: left; white-space: normal; }
  .consult-page .chat-input-area { padding: 0 16px 18px; }
  .consult-page .input-wrapper { max-width: none; }
  .service-center-page .topbar { height: 68px; padding: 0 16px; }
  .service-center-page main { padding: 40px 16px 64px; }
  .service-center-page .hero { align-items: flex-start; }
  .service-center-page .hero h1 { font-size: 34px; }
  .service-center-page .summary { grid-template-columns: 1fr; }
  .service-center-page .metric { min-height: 96px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}