:root {
  --ink: #17211e;
  --forest: #173b34;
  --forest-2: #24574d;
  --gold: #b4935a;
  --paper: #f6f4ef;
  --white: #fff;
  --muted: #65706c;
  --line: rgba(23, 33, 30, .14);
  --shadow: 0 22px 70px rgba(21, 37, 32, .13);
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; object-fit: cover; }
.container { width: min(var(--max), calc(100% - 48px)); margin: auto; }
.site-header { position: absolute; z-index: 20; top: 0; left: 0; width: 100%; color: #fff; border-bottom: 1px solid rgba(255,255,255,.22); }
.nav { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; flex-direction: column; line-height: 1.2; }
.brand strong { font-family: Georgia, "Songti SC", serif; font-size: 22px; letter-spacing: 0; }
.brand span { margin-top: 5px; font-size: 11px; color: rgba(255,255,255,.72); }
.nav-links { display: flex; gap: 30px; font-size: 14px; }
.nav-contact { display: flex; align-items: center; gap: 14px; font-size: 13px; }
.nav-phones { display: flex; align-items: center; gap: 12px; }
.nav-phones a + a { padding-left: 12px; border-left: 1px solid rgba(255,255,255,.35); }
.nav-contact b { font-size: 16px; }
.hero { min-height: 92vh; position: relative; display: flex; flex-direction: column; justify-content: flex-end; align-items: stretch; color: #fff; background: #243631; overflow: hidden; }
.hero img { position: absolute; inset: 0; height: 100%; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,24,20,.79), rgba(11,24,20,.28) 60%, rgba(11,24,20,.12)), linear-gradient(0deg, rgba(11,24,20,.55), transparent 55%); }
.hero-content { position: relative; z-index: 2; padding: 190px 0 90px; }
.hero-content > * { max-width: 820px; }
.eyebrow { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; color: #e6d6b6; font-size: 13px; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 42px; height: 1px; background: var(--gold); }
h1, h2, h3 { font-family: Georgia, "Songti SC", serif; font-weight: 500; letter-spacing: 0; margin-top: 0; }
.hero h1 { max-width: 760px; margin-bottom: 24px; font-size: clamp(42px, 5.2vw, 68px); line-height: 1.13; }
.hero-copy { max-width: 680px; color: rgba(255,255,255,.86); font-size: 18px; }
.actions { display: flex; gap: 16px; margin-top: 38px; flex-wrap: wrap; }
.btn { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; padding: 0 26px; border: 1px solid transparent; font-weight: 600; font-size: 14px; }
.btn-primary { background: var(--gold); color: #fff; }
.btn-ghost { border-color: rgba(255,255,255,.52); color: #fff; }
.hero-facts { position: relative; z-index: 3; width: 100%; border-top: 1px solid rgba(255,255,255,.2); }
.facts-row { display: grid; grid-template-columns: repeat(4, 1fr); }
.fact { padding: 26px 24px; border-right: 1px solid rgba(255,255,255,.2); }
.fact:first-child { padding-left: 0; }
.fact b { display: block; font-family: Georgia, serif; font-size: 23px; }
.fact span { font-size: 12px; color: rgba(255,255,255,.68); }
.section { padding: 108px 0; }
.section-white { background: #fff; }
.section-head { max-width: 720px; margin-bottom: 54px; }
.section-head h2 { font-size: clamp(34px, 4vw, 52px); line-height: 1.2; margin-bottom: 16px; }
.section-head p { color: var(--muted); }
.intro-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.intro-title { position: sticky; top: 40px; }
.intro-title h2 { font-size: 48px; line-height: 1.25; }
.intro-copy { font-size: 18px; }
.intro-copy p:first-child { font-size: 24px; color: var(--forest); }
.service-lines { margin-top: 44px; border-top: 1px solid var(--line); }
.service-line { display: grid; grid-template-columns: 130px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.service-line b { color: var(--forest); }
.feature-route { display: grid; grid-template-columns: 1.25fr .75fr; min-height: 600px; background: var(--forest); color: #fff; }
.feature-route:nth-child(even) { grid-template-columns: .75fr 1.25fr; }
.feature-route:nth-child(even) .feature-image { order: 2; }
.feature-image { min-height: 580px; }
.feature-image img { height: 100%; }
.feature-copy { padding: 70px 58px; display: flex; flex-direction: column; justify-content: center; }
.feature-copy h3 { font-size: 42px; line-height: 1.25; margin-bottom: 20px; }
.feature-copy p { color: rgba(255,255,255,.72); }
.route-meta { display: flex; gap: 18px; margin: 24px 0; color: #e6d6b6; font-size: 13px; flex-wrap: wrap; }
.text-link { margin-top: 24px; color: #e6d6b6; font-weight: 600; }
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.process-step { padding: 34px 30px 0 0; border-right: 1px solid var(--line); min-height: 230px; }
.process-step + .process-step { padding-left: 30px; }
.process-step:last-child { border-right: 0; }
.process-step small { color: var(--gold); font-family: Georgia, serif; font-size: 18px; }
.process-step h3 { margin: 20px 0 12px; font-size: 24px; }
.process-step p { color: var(--muted); font-size: 14px; }
.advisor { display: grid; grid-template-columns: 1fr 330px; gap: 90px; align-items: center; background: var(--forest); color: #fff; padding: 72px; }
.advisor h2 { font-size: 48px; line-height: 1.25; margin-bottom: 20px; }
.advisor p { color: rgba(255,255,255,.72); }
.phone-list { margin: 30px 0; display: flex; gap: 28px; flex-wrap: wrap; }
.phone-list a { color: #e6d6b6; font-size: 18px; }
.qr-wrap { display: grid; grid-template-columns: 145px 1fr; gap: 22px; align-items: center; }
.qr-wrap img { width: 145px; height: 145px; padding: 7px; background: #fff; }
.qr-wrap b { display: block; margin-bottom: 6px; }
.site-footer { padding: 36px 0; color: var(--muted); font-size: 12px; }
.footer-row { display: flex; justify-content: space-between; gap: 30px; border-top: 1px solid var(--line); padding-top: 28px; }
.site-compliance { width: 100%; display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; color: var(--muted); font-size: 12px; line-height: 1.7; }
.site-compliance a { color: inherit; }
.footer-row a:hover, .credits-content a:hover { color: var(--forest); text-decoration: underline; }
.credits-header { background: var(--forest); color: #fff; padding: 22px 0; }
.credits-content { max-width: 900px; }
.credits-content > h1 { font-size: clamp(40px, 6vw, 66px); line-height: 1.15; }
.credits-list { margin: 46px 0; border-top: 1px solid var(--line); }
.credits-list article { padding: 26px 0; border-bottom: 1px solid var(--line); }
.credits-list h2 { margin-bottom: 8px; font-size: 24px; }
.credits-list p { margin: 0; color: var(--muted); }
.credits-list a { color: var(--forest-2); text-decoration: underline; }

/* Routes */
.inner-hero { min-height: 60vh; align-items: flex-end; }
.inner-hero .hero-content { padding-bottom: 70px; }
.inner-hero h1 { font-size: clamp(42px, 5vw, 68px); }
.route-index { display: grid; grid-template-columns: 260px 1fr; gap: 70px; }
.route-filter { position: sticky; top: 28px; align-self: start; }
.route-filter h3 { font-size: 22px; }
.route-filter a { display: block; padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.route-filter a.active { color: var(--forest); font-weight: 700; }
.route-list-item { display: grid; grid-template-columns: 380px 1fr; gap: 42px; padding: 0 0 54px; margin-bottom: 54px; border-bottom: 1px solid var(--line); }
.route-list-item img { height: 285px; }
.route-list-item h2 { font-size: 34px; margin-bottom: 12px; }
.route-list-item p { color: var(--muted); }
.route-tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 18px 0; }
.route-tags span { border: 1px solid var(--line); padding: 5px 10px; font-size: 12px; }
.route-list-feature:last-child { margin-bottom: 0; }
.dark-link { color: var(--forest-2); }
.route-directory { border-top: 1px solid var(--line); }
.route-directory a { display: grid; grid-template-columns: 90px 1.1fr 1fr; gap: 30px; align-items: center; padding: 26px 0; border-bottom: 1px solid var(--line); transition: color .2s ease, padding-left .2s ease; }
.route-directory a:hover { color: var(--forest-2); padding-left: 10px; }
.route-directory span { color: var(--gold); font-size: 13px; }
.route-directory strong { font-family: Georgia, "Songti SC", serif; font-size: 21px; font-weight: 500; }
.route-directory small { color: var(--muted); font-size: 13px; }
.answer-strip { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.answer-strip h2 { font-size: 42px; line-height: 1.25; }
.answer-list { border-top: 1px solid var(--line); }
.answer-list p { margin: 0; padding: 18px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.answer-list b { color: var(--forest); }

/* Detail */
.detail-hero { min-height: 76vh; }
.detail-summary { margin-top: -54px; position: relative; z-index: 5; background: #fff; box-shadow: var(--shadow); padding: 34px 44px; display: grid; grid-template-columns: repeat(5, 1fr); }
.detail-summary div { border-right: 1px solid var(--line); padding: 0 24px; }
.detail-summary div:first-child { padding-left: 0; }
.detail-summary div:last-child { border-right: 0; }
.detail-summary small { display: block; color: var(--muted); }
.detail-summary b { font-size: 16px; }
.detail-layout { display: grid; grid-template-columns: 1fr 310px; gap: 70px; }
.detail-nav { position: sticky; top: 26px; align-self: start; border-left: 1px solid var(--line); padding-left: 26px; }
.detail-nav a { display: block; padding: 9px 0; color: var(--muted); font-size: 13px; }
.story-section { padding: 55px 0; border-bottom: 1px solid var(--line); }
.story-section h2 { font-size: 38px; }
.lead { font-size: 21px; color: var(--forest); }
.day { display: grid; grid-template-columns: 110px 1fr; gap: 28px; padding: 32px 0; border-top: 1px solid var(--line); }
.day-no { color: var(--gold); font-family: Georgia, serif; font-size: 20px; }
.day h3 { font-size: 25px; margin-bottom: 8px; }
.day p { color: var(--muted); }
.day-info { display: flex; gap: 20px; font-size: 12px; color: var(--forest); flex-wrap: wrap; }
.journey-note { max-width: 760px; margin: -8px 0 24px; padding-left: 16px; border-left: 2px solid var(--gold); color: var(--muted); }
.image-band { display: grid; grid-template-columns: 1.1fr .9fr; gap: 12px; margin: 28px 0 18px; }
.image-band img { height: 360px; }
.image-band img:last-child { height: 360px; }
.pamir-hero img { object-position: center 58%; }
.standards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 44px; }
.standard { padding: 26px 0; border-top: 1px solid var(--line); }
.standard h3 { font-size: 21px; margin-bottom: 8px; }
.standard p { color: var(--muted); font-size: 14px; }
.included { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.included h3 { font-size: 24px; }
.included ul { padding-left: 20px; color: var(--muted); }

@media (max-width: 860px) {
  .container { width: min(100% - 32px, var(--max)); }
  .nav { min-height: 68px; }
  .nav-links { display: none; }
  .nav-contact span { display: none; }
  .hero { min-height: 88vh; }
  .hero-content { padding: 150px 0 58px; }
  .hero h1 { font-size: 44px; }
  .hero-copy { font-size: 16px; }
  .facts-row { grid-template-columns: repeat(2, 1fr); }
  .fact { padding: 18px 14px; border-bottom: 1px solid rgba(255,255,255,.2); }
  .section { padding: 72px 0; }
  .intro-grid, .route-index, .detail-layout, .answer-strip { grid-template-columns: 1fr; gap: 40px; }
  .intro-title, .route-filter, .detail-nav { position: static; }
  .intro-title h2, .advisor h2 { font-size: 38px; }
  .feature-route, .feature-route:nth-child(even) { grid-template-columns: 1fr; }
  .feature-route:nth-child(even) .feature-image { order: 0; }
  .feature-image { min-height: 330px; }
  .feature-copy { padding: 44px 28px; }
  .feature-copy h3 { font-size: 34px; }
  .process { grid-template-columns: 1fr 1fr; }
  .process-step { border-bottom: 1px solid var(--line); }
  .advisor { grid-template-columns: 1fr; padding: 44px 28px; gap: 34px; }
  .route-list-item { grid-template-columns: 1fr; gap: 24px; }
  .route-list-item img { height: 260px; }
  .route-directory a { grid-template-columns: 70px 1fr; gap: 18px; }
  .route-directory small { grid-column: 2; }
  .detail-summary { grid-template-columns: repeat(2, 1fr); padding: 24px; }
  .detail-summary div { padding: 12px; border-bottom: 1px solid var(--line); }
  .detail-summary div:nth-child(even) { border-right: 0; }
  .day { grid-template-columns: 1fr; gap: 4px; }
  .image-band, .standards, .included { grid-template-columns: 1fr; }
  .image-band img, .image-band img:last-child { height: 270px; }
  .footer-row { flex-direction: column; }
}
@media (max-width: 520px) {
  .brand strong { font-size: 18px; }
  .nav-contact { gap: 0; }
  .nav-phones { flex-direction: column; align-items: flex-end; gap: 1px; line-height: 1.35; }
  .nav-phones a + a { padding-left: 0; border-left: 0; }
  .nav-contact b { font-size: 12px; }
  .hero h1 { font-size: 38px; }
  .inner-hero h1, .detail-hero h1 { font-size: 34px; }
  .hero-content { padding-top: 130px; }
  .hero-facts { width: 100%; }
  .fact b { font-size: 19px; }
  .fact span { line-height: 1.45; display: block; margin-top: 3px; }
  .service-line { grid-template-columns: 1fr; gap: 6px; }
  .route-list-item h2, .story-section h2 { font-size: 30px; }
  .route-directory a { grid-template-columns: 1fr; gap: 4px; padding: 22px 0; }
  .route-directory small { grid-column: auto; }
  .advisor { padding: 36px 20px; }
  .advisor h2 { font-size: 32px; }
  .phone-list { gap: 12px; flex-direction: column; }
  .actions .btn { width: 100%; }
  .process { grid-template-columns: 1fr; }
  .process-step, .process-step + .process-step { padding: 28px 0; border-right: 0; min-height: auto; }
  .qr-wrap { grid-template-columns: 110px 1fr; }
  .qr-wrap img { width: 110px; height: 110px; }
  .detail-summary { margin-top: -30px; }
}