:root {
  --ss-ink: #071a25;
  --ss-deep: #04131d;
  --ss-navy: #082836;
  --ss-aqua: #64efd1;
  --ss-cyan: #39cfe2;
  --ss-paper: #f2f6f4;
  --ss-cream: #f5f0e5;
  --ss-muted: #657882;
  --ss-line: rgba(8, 40, 54, .14);
  --ss-radius: 30px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.page-sansha { margin: 0; padding-top: 92px; background: var(--ss-paper); color: var(--ss-ink); font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
.page-sansha a { color: inherit; }
.page-sansha main { overflow: clip; }
.page-sansha .ss-shell { width: min(1216px, calc(100% - 64px)); margin: 0 auto; }
.page-sansha .ss-eyebrow { margin: 0 0 18px; color: #087f83; font-size: 12px; font-weight: 900; letter-spacing: .17em; text-transform: uppercase; }
.page-sansha .ss-eyebrow::before { display: inline-block; width: 28px; height: 2px; margin: 0 12px 3px 0; background: currentColor; content: ""; }
.page-sansha .ss-section-heading { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .62fr); gap: 72px; align-items: end; margin-bottom: 56px; }
.page-sansha .ss-section-heading h2,
.page-sansha .ss-closing h2 { margin: 0; font-size: 46px; line-height: 1.08; letter-spacing: -.055em; }
.page-sansha .ss-section-heading > p { margin: 0; color: var(--ss-muted); font-size: 16px; line-height: 1.9; }

.page-sansha .ss-hero { position: relative; min-height: 780px; overflow: hidden; background: var(--ss-deep); color: #fff; }
.page-sansha .ss-hero-media,
.page-sansha .ss-hero-media img { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }
.page-sansha .ss-hero-media img { object-fit: cover; object-position: center; }
.page-sansha .ss-hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(2, 13, 21, .9) 0%, rgba(2, 16, 24, .72) 40%, rgba(3, 19, 29, .26) 72%, rgba(3, 18, 27, .18) 100%), linear-gradient(0deg, rgba(3, 18, 27, .64), transparent 48%); }
.page-sansha .ss-node-field { position: absolute; inset: 0; pointer-events: none; }
.page-sansha .ss-node-field i { position: absolute; width: 9px; height: 9px; border: 2px solid rgba(100, 239, 209, .75); border-radius: 50%; box-shadow: 0 0 20px rgba(57, 207, 226, .6); }
.page-sansha .ss-node-field i:nth-child(1) { left: 8%; top: 18%; }
.page-sansha .ss-node-field i:nth-child(2) { left: 48%; top: 11%; }
.page-sansha .ss-node-field i:nth-child(3) { right: 9%; top: 24%; }
.page-sansha .ss-node-field i:nth-child(4) { right: 38%; bottom: 12%; }
.page-sansha .ss-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(430px, .92fr); gap: 70px; align-items: center; min-height: 780px; padding: 72px 0 64px; }
.page-sansha .ss-breadcrumb { margin-bottom: 68px; color: rgba(255, 255, 255, .72); font-size: 13px; }
.page-sansha .ss-hero .ss-eyebrow { color: var(--ss-aqua); }
.page-sansha .ss-hero h1 { max-width: 730px; margin: 0; font-size: 58px; line-height: 1.06; letter-spacing: -.06em; }
.page-sansha .ss-hero h1 span { color: var(--ss-aqua); }
.page-sansha .ss-lead { max-width: 690px; margin: 26px 0 0; color: rgba(255, 255, 255, .78); font-size: 17px; line-height: 1.9; }
.page-sansha .ss-hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 34px; }
.page-sansha .ss-button { display: inline-flex; min-height: 50px; padding: 0 24px; align-items: center; justify-content: center; border: 1px solid rgba(255, 255, 255, .34); border-radius: 999px; color: #fff; font-size: 14px; font-weight: 850; text-decoration: none; }
.page-sansha .ss-button-bright { border-color: var(--ss-aqua); background: var(--ss-aqua); color: var(--ss-deep); }
.page-sansha .ss-button:hover { transform: translateY(-2px); }
.page-sansha .ss-route-desk { position: relative; overflow: hidden; padding: 28px; border: 1px solid rgba(255, 255, 255, .2); border-radius: 32px; background: linear-gradient(145deg, rgba(4, 25, 37, .82), rgba(8, 52, 62, .52)); box-shadow: 0 34px 90px rgba(0, 0, 0, .34); backdrop-filter: blur(18px); }
.page-sansha .ss-route-desk::after { position: absolute; right: -62px; bottom: -62px; width: 210px; height: 210px; border: 1px solid rgba(100, 239, 209, .2); border-radius: 50%; box-shadow: 0 0 0 28px rgba(100, 239, 209, .04), 0 0 0 58px rgba(57, 207, 226, .025); content: ""; }
.page-sansha .ss-route-desk-head { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; padding-bottom: 24px; border-bottom: 1px solid rgba(255, 255, 255, .13); }
.page-sansha .ss-route-desk-head span { color: var(--ss-aqua); font-size: 12px; font-weight: 900; letter-spacing: .12em; }
.page-sansha .ss-route-desk-head b { max-width: 260px; font-size: 14px; line-height: 1.65; text-align: right; }
.page-sansha .ss-route-desk-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding-top: 16px; }
.page-sansha .ss-route-desk-grid article { min-height: 132px; padding: 22px; border: 1px solid rgba(255, 255, 255, .11); border-radius: 20px; background: rgba(255, 255, 255, .055); }
.page-sansha .ss-route-desk-grid i { display: block; width: 9px; height: 9px; margin-bottom: 22px; border-radius: 50%; background: var(--ss-aqua); box-shadow: 0 0 16px rgba(100, 239, 209, .75); }
.page-sansha .ss-route-desk-grid strong { display: block; margin-bottom: 8px; font-size: 21px; }
.page-sansha .ss-route-desk-grid small { color: rgba(255, 255, 255, .62); font-size: 12px; line-height: 1.6; }
.page-sansha .ss-route-line { position: absolute; inset: 88px 20px 28px; pointer-events: none; }
.page-sansha .ss-route-line span { position: absolute; display: block; height: 1px; background: linear-gradient(90deg, transparent, rgba(100, 239, 209, .5), transparent); transform-origin: left center; }
.page-sansha .ss-route-line span:nth-child(1) { left: 25%; top: 28%; width: 52%; transform: rotate(23deg); }
.page-sansha .ss-route-line span:nth-child(2) { left: 20%; top: 62%; width: 58%; transform: rotate(-18deg); }
.page-sansha .ss-route-line span:nth-child(3) { left: 50%; top: 21%; width: 48%; transform: rotate(74deg); }

.page-sansha .city-ad { position: relative; z-index: 2; }
.page-sansha .ss-first-ad { background: #e5efed; }
.page-sansha .ss-context { padding: 128px 0; background: var(--ss-paper); }
.page-sansha .ss-context-layout { display: grid; grid-template-columns: minmax(300px, .74fr) minmax(0, 1.26fr); gap: 90px; align-items: start; }
.page-sansha .ss-sticky-heading { position: sticky; top: 132px; }
.page-sansha .ss-sticky-heading h2 { max-width: 480px; margin: 0; font-size: 46px; line-height: 1.08; letter-spacing: -.055em; }
.page-sansha .ss-sticky-heading > p:not(.ss-eyebrow) { margin: 25px 0 0; color: var(--ss-muted); font-size: 15px; line-height: 1.9; }
.page-sansha .ss-index-rail { display: grid; margin-top: 38px; border-top: 1px solid var(--ss-line); }
.page-sansha .ss-index-rail a { position: relative; padding: 15px 12px 15px 28px; border-bottom: 1px solid var(--ss-line); color: #72818a; font-size: 14px; font-weight: 800; text-decoration: none; }
.page-sansha .ss-index-rail a::before { position: absolute; left: 5px; top: 50%; width: 8px; height: 8px; border: 1px solid #88a0a7; border-radius: 50%; transform: translateY(-50%); content: ""; }
.page-sansha .ss-index-rail a.is-active { color: #087f83; }
.page-sansha .ss-index-rail a.is-active::before { border-color: var(--ss-aqua); background: #0c8f91; box-shadow: 0 0 0 5px rgba(12, 143, 145, .1); }
.page-sansha .ss-context-cards { display: grid; gap: 20px; }
.page-sansha .ss-context-cards article { position: relative; min-height: 260px; padding: 38px 40px; overflow: hidden; border: 1px solid var(--ss-line); border-radius: var(--ss-radius); background: #fff; box-shadow: 0 18px 50px rgba(9, 48, 58, .06); scroll-margin-top: 130px; }
.page-sansha .ss-context-cards article::after { position: absolute; right: -35px; bottom: -45px; width: 150px; height: 150px; border: 1px solid rgba(57, 207, 226, .24); border-radius: 50%; box-shadow: 0 0 0 24px rgba(57, 207, 226, .045); content: ""; }
.page-sansha .ss-context-cards span { color: #0b8f90; font-size: 11px; font-weight: 900; letter-spacing: .15em; }
.page-sansha .ss-context-cards h3 { max-width: 620px; margin: 32px 0 15px; font-size: 28px; line-height: 1.3; letter-spacing: -.035em; }
.page-sansha .ss-context-cards p { max-width: 620px; margin: 0; color: var(--ss-muted); line-height: 1.85; }
.page-sansha .ss-context-cards b { display: block; margin-top: 25px; color: #42626d; font-size: 12px; letter-spacing: .05em; }

.page-sansha .ss-route { padding: 132px 0; background: #fff; }
.page-sansha .ss-story-list { display: grid; gap: 112px; }
.page-sansha .ss-story { display: grid; grid-template-columns: minmax(300px, .72fr) minmax(0, 1.28fr); gap: 72px; align-items: start; }
.page-sansha .ss-story-copy { position: sticky; top: 132px; padding-top: 18px; }
.page-sansha .ss-story-copy > span { display: inline-flex; padding: 8px 12px; border: 1px solid rgba(12, 143, 145, .2); border-radius: 999px; color: #087f83; background: #eef9f7; font-size: 12px; font-weight: 900; }
.page-sansha .ss-story-copy h3 { margin: 26px 0 18px; font-size: 34px; line-height: 1.18; letter-spacing: -.045em; }
.page-sansha .ss-story-copy p { margin: 0; color: var(--ss-muted); font-size: 15px; line-height: 1.9; }
.page-sansha .ss-story-copy ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 0; padding: 0; list-style: none; }
.page-sansha .ss-story-copy li { padding: 8px 11px; border-radius: 10px; background: #edf3f2; color: #4e6871; font-size: 12px; font-weight: 800; }
.page-sansha .ss-story figure { margin: 0; overflow: hidden; border-radius: 34px; background: var(--ss-deep); box-shadow: 0 28px 80px rgba(7, 26, 37, .16); }
.page-sansha .ss-story img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; }
.page-sansha .ss-story figcaption { padding: 15px 19px 17px; color: rgba(255, 255, 255, .66); font-size: 12px; letter-spacing: .03em; }

.page-sansha .ss-platform { padding: 132px 0; background: var(--ss-deep); color: #fff; }
.page-sansha .ss-section-heading-light .ss-eyebrow { color: var(--ss-aqua); }
.page-sansha .ss-section-heading-light > p { color: rgba(255, 255, 255, .65); }
.page-sansha .ss-platform-stage { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr); gap: 18px; }
.page-sansha .ss-platform-stage figure { margin: 0; overflow: hidden; border: 1px solid rgba(255, 255, 255, .1); border-radius: 30px; background: #061923; }
.page-sansha .ss-platform-stage figure img { display: block; width: 100%; height: auto; aspect-ratio: 1253 / 705; object-fit: cover; }
.page-sansha .ss-platform-stage figcaption { padding: 16px 20px 18px; color: rgba(255, 255, 255, .55); font-size: 12px; }
.page-sansha .ss-workspace-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.page-sansha .ss-workspace-grid article { min-height: 168px; padding: 28px; border: 1px solid rgba(255, 255, 255, .11); border-radius: 24px; background: rgba(255, 255, 255, .055); }
.page-sansha .ss-workspace-grid article::before { display: block; width: 9px; height: 9px; margin-bottom: 35px; border-radius: 50%; background: var(--ss-aqua); box-shadow: 0 0 16px rgba(100, 239, 209, .65); content: ""; }
.page-sansha .ss-workspace-grid h3 { margin: 0 0 10px; font-size: 22px; }
.page-sansha .ss-workspace-grid p { margin: 0; color: rgba(255, 255, 255, .62); font-size: 13px; line-height: 1.7; }

.page-sansha .ss-standard { padding: 126px 0; background: var(--ss-cream); }
.page-sansha .ss-manifest { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(8, 40, 54, .18); border-left: 1px solid rgba(8, 40, 54, .18); }
.page-sansha .ss-manifest article { min-height: 300px; padding: 30px; border-right: 1px solid rgba(8, 40, 54, .18); border-bottom: 1px solid rgba(8, 40, 54, .18); }
.page-sansha .ss-manifest span { color: #087f83; font-size: 11px; font-weight: 900; letter-spacing: .13em; }
.page-sansha .ss-manifest h3 { margin: 74px 0 16px; font-size: 24px; line-height: 1.3; letter-spacing: -.035em; }
.page-sansha .ss-manifest p { margin: 0; color: var(--ss-muted); font-size: 14px; line-height: 1.8; }

.page-sansha .ss-notes { padding: 132px 0; background: #e7f1ef; }
.page-sansha .ss-notes-layout { display: grid; grid-template-columns: minmax(300px, .7fr) minmax(0, 1.3fr); gap: 84px; align-items: start; }
.page-sansha .ss-notes-heading { position: sticky; top: 132px; }
.page-sansha .ss-notes-heading h2 { margin: 0; font-size: 46px; line-height: 1.08; letter-spacing: -.055em; }
.page-sansha .ss-notes-heading > p:not(.ss-eyebrow) { margin: 24px 0 0; color: var(--ss-muted); line-height: 1.9; }
.page-sansha .ss-note-list { border-top: 1px solid rgba(8, 40, 54, .17); }
.page-sansha .ss-note-list a { display: grid; grid-template-columns: 128px minmax(0, 1fr) auto; gap: 26px; align-items: center; min-height: 130px; padding: 24px 0; border-bottom: 1px solid rgba(8, 40, 54, .17); text-decoration: none; }
.page-sansha .ss-note-list span { color: #087f83; font-size: 12px; font-weight: 900; }
.page-sansha .ss-note-list h3 { margin: 0; font-size: 19px; line-height: 1.5; }
.page-sansha .ss-note-list i { color: #4d6870; font-size: 12px; font-style: normal; white-space: nowrap; }

.page-sansha .ss-faq { padding: 132px 0; }
.page-sansha .ss-faq-layout { display: grid; grid-template-columns: minmax(300px, .7fr) minmax(0, 1.3fr); gap: 84px; }
.page-sansha .ss-faq-heading h2 { margin: 0; font-size: 46px; line-height: 1.08; letter-spacing: -.055em; }
.page-sansha .ss-faq-heading > p:not(.ss-eyebrow) { margin: 24px 0 0; color: var(--ss-muted); line-height: 1.9; }
.page-sansha .ss-faq-list summary { position: relative; padding-right: 42px; }
.page-sansha .ss-faq-list summary::after { position: absolute; right: 4px; top: 50%; width: 22px; height: 22px; border: 1px solid var(--ss-line); border-radius: 50%; content: "+"; color: #087f83; line-height: 20px; text-align: center; transform: translateY(-50%); }
.page-sansha .ss-faq-list details[open] summary::after { content: "−"; }
.page-sansha .ss-faq-list details p { margin: 0 0 24px; padding-right: 42px; }

.page-sansha .ss-final-ad { background: #061923; }
.page-sansha .ss-closing { padding: 92px 0; background: #0a303a; color: #fff; }
.page-sansha .ss-closing-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(300px, .65fr); gap: 80px; align-items: end; }
.page-sansha .ss-closing .ss-eyebrow { color: var(--ss-aqua); }
.page-sansha .ss-closing-grid > div:last-child p { margin: 0; color: rgba(255, 255, 255, .7); font-size: 15px; line-height: 1.9; }

.page-sansha .reveal { opacity: 0; transform: translateY(28px); transition: opacity .72s ease, transform .72s cubic-bezier(.22, 1, .36, 1); }
.page-sansha .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .page-sansha .ss-hero-grid { grid-template-columns: 1fr; gap: 36px; padding-top: 78px; }
  .page-sansha .ss-route-desk { max-width: 620px; }
  .page-sansha .ss-context-layout,
  .page-sansha .ss-story,
  .page-sansha .ss-notes-layout,
  .page-sansha .ss-faq-layout { grid-template-columns: 1fr; gap: 48px; }
  .page-sansha .ss-sticky-heading,
  .page-sansha .ss-story-copy,
  .page-sansha .ss-notes-heading { position: static; }
  .page-sansha .ss-index-rail { grid-template-columns: repeat(4, 1fr); }
  .page-sansha .ss-index-rail a { padding: 15px 8px; text-align: center; }
  .page-sansha .ss-index-rail a::before { display: none; }
  .page-sansha .ss-platform-stage { grid-template-columns: 1fr; }
  .page-sansha .ss-manifest { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  body.page-sansha { padding-top: 68px; }
  .page-sansha .ss-shell { width: min(100% - 28px, 1216px); }
  .page-sansha .ss-section-heading { grid-template-columns: 1fr; gap: 20px; margin-bottom: 34px; }
  .page-sansha .ss-section-heading h2,
  .page-sansha .ss-sticky-heading h2,
  .page-sansha .ss-notes-heading h2,
  .page-sansha .ss-faq-heading h2,
  .page-sansha .ss-closing h2 { font-size: 31px; line-height: 1.12; }
  .page-sansha .ss-hero { min-height: 776px; }
  .page-sansha .ss-hero-media img { object-position: 52% center; }
  .page-sansha .ss-hero-shade { background: linear-gradient(180deg, rgba(2, 14, 21, .22) 0%, rgba(2, 16, 25, .55) 34%, rgba(2, 16, 25, .92) 100%); }
  .page-sansha .ss-hero-grid { display: block; min-height: 776px; padding: 38px 0 44px; }
  .page-sansha .ss-breadcrumb { margin-bottom: 190px; font-size: 12px; }
  .page-sansha .ss-hero h1 { font-size: 38px; line-height: 1.07; }
  .page-sansha .ss-lead { margin-top: 20px; font-size: 14px; line-height: 1.82; }
  .page-sansha .ss-hero-actions { margin-top: 24px; }
  .page-sansha .ss-button { min-height: 46px; padding: 0 17px; font-size: 13px; }
  .page-sansha .ss-route-desk { display: none; }
  .page-sansha .ss-context,
  .page-sansha .ss-route,
  .page-sansha .ss-platform,
  .page-sansha .ss-standard,
  .page-sansha .ss-notes,
  .page-sansha .ss-faq { padding: 78px 0; }
  .page-sansha .ss-context-layout,
  .page-sansha .ss-notes-layout,
  .page-sansha .ss-faq-layout { gap: 34px; }
  .page-sansha .ss-index-rail { grid-template-columns: 1fr 1fr; }
  .page-sansha .ss-context-cards article { min-height: 0; padding: 28px 24px; border-radius: 24px; }
  .page-sansha .ss-context-cards h3 { margin-top: 24px; font-size: 24px; }
  .page-sansha .ss-context-cards b { line-height: 1.7; }
  .page-sansha .ss-story-list { gap: 70px; }
  .page-sansha .ss-story { gap: 28px; }
  .page-sansha .ss-story-copy h3 { font-size: 28px; }
  .page-sansha .ss-story figure { border-radius: 24px; }
  .page-sansha .ss-workspace-grid { grid-template-columns: 1fr; }
  .page-sansha .ss-workspace-grid article { min-height: 0; padding: 24px; }
  .page-sansha .ss-workspace-grid article::before { margin-bottom: 20px; }
  .page-sansha .ss-manifest { grid-template-columns: 1fr; }
  .page-sansha .ss-manifest article { min-height: 240px; padding: 26px; }
  .page-sansha .ss-manifest h3 { margin-top: 58px; }
  .page-sansha .ss-note-list a { grid-template-columns: 1fr auto; gap: 12px; min-height: 0; padding: 24px 0; }
  .page-sansha .ss-note-list span { grid-column: 1 / -1; }
  .page-sansha .ss-note-list h3 { font-size: 17px; }
  .page-sansha .ss-note-list i { align-self: end; }
  .page-sansha .ss-closing { padding: 76px 0; }
  .page-sansha .ss-closing-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .page-sansha .reveal { opacity: 1; transform: none; transition: none; }
  .page-sansha .ss-node-field i { animation: none; }
  .page-sansha .ss-button { transition: none; }
}