:root {
  --paper: #f2eee5;
  --cream: #fff7ec;
  --ink: #0b0b0b;
  --muted: #756f63;
  --line: #d9d1c2;
  --orange: #ff4a17;
  --orange-2: #d93606;
  --blue: #1f2bff;
  --dark: #0c0c0c;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 20px; line-height: 1.7; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
::selection { background: var(--orange); color: #fff; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

.container { width: min(1280px, calc(100% - 48px)); margin-inline: auto; }
.section { padding: 90px 0; }

.age-bar { height: 30px; display: flex; align-items: center; justify-content: center; background: var(--dark); color: rgba(255,255,255,.45); font-size: 10px; letter-spacing: .08em; }

/* header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(242,238,229,.94); border-bottom: 1px solid var(--ink); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.header-inner { display: flex; align-items: center; gap: 22px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.brand img { width: 34px; height: 34px; border-radius: 7px; object-fit: cover; }
.brand b { font-size: 21px; letter-spacing: -.04em; font-weight: 900; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--muted); font-size: 14px; font-weight: 500; }
.nav a:hover { color: var(--orange); }
.header-cta { padding: 9px 18px; border-radius: 0; background: var(--ink); color: var(--cream); font-size: 13px; font-weight: 700; white-space: nowrap; }
.header-cta:hover { background: var(--orange); }
.menu-btn { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; border: 1px solid var(--ink); }
.menu-btn i { position: relative; display: block; width: 17px; height: 1.5px; background: var(--ink); }
.menu-btn i::before, .menu-btn i::after { content: ""; position: absolute; left: 0; width: 17px; height: 1.5px; background: var(--ink); transition: transform .2s ease; }
.menu-btn i::before { top: -6px; }
.menu-btn i::after { top: 6px; }
.menu-btn[aria-expanded="true"] i { background: transparent; }
.menu-btn[aria-expanded="true"] i::before { transform: translateY(6px) rotate(45deg); }
.menu-btn[aria-expanded="true"] i::after { transform: translateY(-6px) rotate(-45deg); }
.mobile-nav { display: none; padding: 8px 20px 18px; background: var(--paper); border-top: 1px solid var(--line); }
.mobile-nav.is-open { display: block; }
.mobile-nav a { display: block; padding: 11px 2px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.mobile-nav .header-cta { margin-top: 12px; color: var(--cream); }

/* hero */
.hero { position: relative; min-height: min(88vh, 840px); overflow: hidden; display: flex; align-items: flex-end; background: var(--dark); color: var(--cream); }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 25%; transform: scale(1.03); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,7,5,.95) 0%, rgba(8,7,5,.76) 40%, rgba(8,7,5,.18) 78%), linear-gradient(0deg, rgba(8,7,5,.94), transparent 56%); }
.hero-side { position: absolute; right: 22px; top: 40%; z-index: 2; writing-mode: vertical-rl; color: rgba(255,255,255,.4); font-family: var(--mono); font-size: 9px; letter-spacing: .2em; }
.hero-inner { position: relative; z-index: 2; padding-top: 100px; padding-bottom: 44px; }
.hero-kicker { margin: 0 0 10px; color: var(--orange); font-family: var(--mono); font-size: 11px; letter-spacing: .1em; }
.hero h1 { margin: 0; color: var(--cream); font-size: clamp(86px, 13vw, 190px); line-height: .78; letter-spacing: -.09em; font-weight: 900; }
.hero h1 span { color: var(--orange); }
.hero-sub { margin: 20px 0 8px; color: var(--cream); font-size: clamp(26px, 3vw, 38px); font-weight: 700; letter-spacing: -.03em; }
.hero-desc { max-width: 580px; margin: 0 0 20px; color: rgba(255,255,255,.6); font-size: 16px; line-height: 1.85; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 13px 24px; border: 1.5px solid transparent; font-size: 15px; font-weight: 800; transition: background .18s ease, color .18s ease; }
.btn-hot { background: var(--orange); color: #fff; }
.btn-hot:hover { background: var(--orange-2); }
.btn-ghost { border-color: rgba(255,255,255,.5); color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--ink); }
.hero-stats { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 42px; border-top: 1px solid rgba(255,255,255,.25); }
.hero-stats div { padding: 14px 14px 0; border-left: 1px solid rgba(255,255,255,.18); }
.hero-stats div:first-child { border-left: 0; padding-left: 0; }
.hero-stats b { display: block; color: var(--cream); font-size: 27px; line-height: 1; }
.hero-stats b em { color: var(--orange); font-size: 12px; font-style: normal; }
.hero-stats span { display: block; margin-top: 4px; color: rgba(255,255,255,.4); font-size: 9.5px; }

/* marquee */
.marquee { overflow: hidden; background: var(--orange); color: var(--ink); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.marquee-track { display: flex; width: max-content; animation: marquee 24s linear infinite; }
.marquee-track span { display: block; padding: 9px 0; font-family: var(--mono); font-size: 10px; letter-spacing: .12em; white-space: nowrap; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* heads */
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; padding-bottom: 22px; border-bottom: 1px solid var(--ink); margin-bottom: 34px; }
.label { margin: 0 0 8px; color: var(--orange); font-family: var(--mono); font-size: 10px; letter-spacing: .1em; }
.section-head h2 { margin: 0; font-size: clamp(40px, 5vw, 68px); line-height: 1.02; letter-spacing: -.065em; font-weight: 900; }
.section-head h2 em { color: var(--orange); font-style: normal; }
.head-aside { max-width: 340px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; text-align: right; }

/* feature */
.feature-section { background: var(--paper); }
.feature-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; align-items: stretch; }
.feature-poster { position: relative; overflow: hidden; min-height: 640px; background: var(--dark); }
.feature-poster img { width: 100%; height: 100%; object-fit: cover; }
.feature-poster span { position: absolute; left: 12px; top: 12px; padding: 5px 8px; background: var(--orange); color: #fff; font-family: var(--mono); font-size: 9px; }
.feature-copy { padding: 8px 0; position: relative; }
.index { margin: 0; color: var(--orange); font-family: var(--mono); font-size: 12px; }
.feature-copy .label { margin-top: 4px; }
.feature-copy h2 { margin: 0 0 13px; font-size: clamp(52px, 6vw, 86px); line-height: .95; letter-spacing: -.075em; font-weight: 900; }
.feature-copy h2 em { color: var(--orange); font-style: normal; }
.feature-lead { max-width: 540px; margin: 0 0 22px; color: var(--muted); font-size: 17px; line-height: 1.9; }
.feature-copy dl { margin: 0 0 22px; border-top: 1px solid var(--line); }
.feature-copy dl div { display: grid; grid-template-columns: 70px minmax(0,1fr); gap: 15px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.feature-copy dt { color: var(--muted); font-family: var(--mono); font-size: 10px; }
.feature-copy dd { margin: 0; font-size: 14px; }
.text-link { display: inline-block; color: var(--orange); font-family: var(--mono); font-size: 12px; font-weight: 700; }

/* schedule */
.schedule-section { background: var(--cream); border-top: 1px solid var(--ink); }
.program-list { border-top: 2px solid var(--ink); }
.program-list a { display: grid; grid-template-columns: 90px 36px minmax(0,1fr) 85px 22px; gap: 14px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--line); }
.program-list span { color: var(--orange); font-family: var(--mono); font-size: 15px; }
.program-list b { color: #bdb3a3; font-family: var(--mono); font-size: 10px; }
.program-list h3 { margin: 0 0 2px; font-size: 22px; letter-spacing: -.03em; }
.program-list p { margin: 0; color: var(--muted); font-size: 11px; }
.program-list em { color: var(--muted); font-family: var(--mono); font-size: 10px; font-style: normal; }
.program-list i { color: var(--orange); font-style: normal; font-size: 18px; }

/* heat */
.heat-section { background: var(--dark); color: var(--cream); }
.heat-section .section-head { border-bottom-color: rgba(255,255,255,.25); }
.heat-section .head-aside { color: rgba(255,255,255,.45); }
.heat-rows { border-top: 1px solid rgba(255,255,255,.2); }
.heat-row { display: grid; grid-template-columns: 92px 52px minmax(0,1fr) 250px 58px; gap: 16px; align-items: center; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.heat-row > b { color: var(--orange); font-family: var(--mono); font-size: 34px; line-height: 1; font-weight: 500; }
.heat-row img { width: 52px; height: 68px; object-fit: cover; }
.heat-name h3 { margin: 0 0 1px; color: var(--cream); font-size: 18px; }
.heat-name p { margin: 0; color: rgba(255,255,255,.4); font-size: 10px; }
.heat-bar { height: 4px; background: rgba(255,255,255,.12); }
.heat-bar i { display: block; width: var(--w); height: 100%; background: var(--orange); }
.heat-row em { color: var(--cream); font-family: var(--mono); font-size: 12px; font-style: normal; text-align: right; }
.heat-row.top .heat-name h3 { color: var(--orange); }

/* modes */
.modes-section { background: var(--paper); }
.modes { display: grid; grid-template-columns: 310px minmax(0,1fr); gap: 34px; align-items: start; }
.mode-tabs { border-top: 2px solid var(--ink); }
.mode-tabs button { display: block; width: 100%; padding: 18px 0; border-bottom: 1px solid var(--line); text-align: left; }
.mode-tabs button b { color: #c2b7a6; font-family: var(--mono); font-size: 10px; }
.mode-tabs button span { display: block; margin-top: 3px; font-size: 26px; font-weight: 900; letter-spacing: -.04em; }
.mode-tabs button em { display: block; margin-top: 2px; color: var(--muted); font-size: 11px; font-style: normal; }
.mode-tabs button.active b, .mode-tabs button.active span { color: var(--orange); }
.mode-panel { display: grid; grid-template-columns: 280px minmax(0,1fr); gap: 28px; align-items: start; }
.mode-image { position: relative; height: 400px; overflow: hidden; background: var(--dark); }
.mode-image img { width: 100%; height: 100%; object-fit: cover; transition: opacity .2s ease; }
.mode-image span { position: absolute; left: 10px; bottom: 10px; padding: 4px 7px; background: var(--orange); color: #fff; font-family: var(--mono); font-size: 8px; }
.mode-copy h3 { margin: 0 0 8px; font-size: 38px; letter-spacing: -.05em; }
.mode-copy p { margin: 0 0 15px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.mode-copy ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.mode-copy li { padding: 8px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px; }

/* stills */
.stills { background: var(--cream); border-top: 1px solid var(--ink); padding-top: 70px; }
.stills-head { margin-bottom: 25px; }
.stills-head h2 { margin: 0; font-size: clamp(40px,5vw,68px); line-height: 1; letter-spacing: -.065em; }
.stills-head > p:not(.label) { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.stills-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 2px; }
.stills-strip figure { position: relative; margin: 0; overflow: hidden; height: 440px; background: var(--dark); }
.stills-strip img { width: 100%; height: 100%; object-fit: cover; }
.stills-strip figcaption { position: absolute; left: 10px; bottom: 10px; padding: 4px 7px; background: rgba(8,7,5,.72); color: #fff; font-family: var(--mono); font-size: 9px; }

/* spec */
.spec-section { background: var(--dark); color: var(--cream); }
.spec-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 50px; align-items: start; }
.spec-grid h2 { margin: 0 0 10px; color: var(--cream); font-size: clamp(44px,5.5vw,74px); line-height: 1; letter-spacing: -.07em; }
.spec-grid h2 em { color: var(--orange); font-style: normal; }
.spec-grid > div > p:not(.label) { max-width: 360px; margin: 0; color: rgba(255,255,255,.45); font-size: 14px; line-height: 1.9; }
.spec-list { border-top: 1px solid rgba(255,255,255,.25); }
.spec-list div { display: grid; grid-template-columns: 38px 170px minmax(0,1fr); gap: 14px; align-items: start; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.spec-list b { color: var(--orange); font-family: var(--mono); font-size: 10px; }
.spec-list span { color: var(--cream); font-size: 18px; font-weight: 700; }
.spec-list p { margin: 0; color: rgba(255,255,255,.45); font-size: 13px; }

/* quotes */
.quotes { background: var(--orange); color: var(--ink); padding: 80px 0; border-top: 1px solid var(--ink); }
.quotes h2 { margin: 0 0 30px; font-size: clamp(42px,5vw,70px); line-height: 1; letter-spacing: -.07em; }
.quotes h2 em { color: var(--cream); font-style: normal; }
.quote-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 34px; border-top: 1px solid rgba(11,11,11,.35); }
.quote-grid blockquote { margin: 0; padding: 20px 0; border-bottom: 1px solid rgba(11,11,11,.28); }
.quote-grid p { margin: 0 0 8px; font-size: 18px; line-height: 1.65; font-weight: 600; }
.quote-grid cite { color: rgba(11,11,11,.6); font-family: var(--mono); font-size: 10px; font-style: normal; }

/* download */
.download { background: var(--cream); padding: 0; border-top: 1px solid var(--ink); }
.download-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; align-items: center; padding: 70px 0; }
.down-copy h2 { margin: 8px 0 10px; font-size: clamp(56px,7vw,100px); line-height: .9; letter-spacing: -.08em; }
.down-copy h2 em { color: var(--orange); font-style: normal; }
.down-copy > p:not(.label) { max-width: 460px; margin: 0 0 18px; color: var(--muted); font-size: 15px; line-height: 1.8; }
.down-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.down-meta span { padding: 4px 8px; border: 1px solid var(--line); font-family: var(--mono); font-size: 9px; color: var(--muted); }
.btn-ink { background: var(--ink); color: var(--cream); }
.btn-ink:hover { background: var(--orange); }
.btn-outline { border-color: var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--cream); }
.down-qr { justify-self: end; display: flex; align-items: center; gap: 18px; padding: 22px; border: 1px solid var(--ink); background: var(--paper); }
.down-qr img { width: 150px; height: 150px; background: #fff; padding: 5px; }
.down-qr p { margin: 0; font-size: 20px; font-weight: 800; line-height: 1.4; }
.down-qr span { display: block; margin-top: 6px; color: var(--muted); font-family: var(--mono); font-size: 8px; font-weight: 400; }

/* faq */
.faq-section { background: var(--paper); border-top: 1px solid var(--ink); }
.faq-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 0 50px; }
.faq-col { border-top: 2px solid var(--ink); }
.faq-item { padding: 18px 0; border-bottom: 1px solid var(--line); }
.faq-item b { color: var(--orange); font-family: var(--mono); font-size: 10px; }
.faq-item h3 { margin: 4px 0 5px; font-size: 20px; letter-spacing: -.03em; }
.faq-item p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* footer */
.footer { background: var(--dark); color: rgba(255,255,255,.5); padding: 42px 0; }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto; gap: 28px; align-items: center; }
.footer-brand { display: inline-flex; align-items: center; gap: 8px; }
.footer-brand img { width: 34px; height: 34px; border-radius: 7px; object-fit: cover; }
.footer-brand b { color: var(--cream); font-size: 18px; }
.footer-inner > p { margin: 0; color: rgba(255,255,255,.45); font-size: 12px; }
.footer-links { display: flex; gap: 16px; }
.footer-links a { color: rgba(255,255,255,.55); font-size: 11px; }
.footer-links a:hover { color: var(--orange); }
.footer-inner small { grid-column: 1 / -1; padding-top: 15px; border-top: 1px solid rgba(255,255,255,.14); font-family: var(--mono); font-size: 8px; color: rgba(255,255,255,.28); }

.mobile-download { display: none; }

/* responsive */
@media (max-width: 1023px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature-poster { min-height: 500px; }
  .modes { grid-template-columns: 1fr; }
  .mode-tabs { display: grid; grid-template-columns: repeat(3,1fr); }
  .mode-tabs button { border-right: 1px solid var(--line); padding: 12px; }
  .mode-panel { grid-template-columns: 240px minmax(0,1fr); }
  .spec-grid { grid-template-columns: 1fr; gap: 24px; }
  .download-grid { grid-template-columns: 1fr; }
  .down-qr { justify-self: start; }
}
@media (max-width: 820px) {
  .nav { display: none; }
  .menu-btn { display: inline-flex; margin-left: auto; }
  .header-cta { display: none; }
  .section { padding: 56px 0; }
  .section-head { display: block; }
  .head-aside { margin-top: 10px; text-align: left; }
  .hero { min-height: 760px; }
  .hero-side { display: none; }
  .heat-row { grid-template-columns: 50px 46px minmax(0,1fr) 58px; }
  .heat-bar { grid-column: 3 / 4; margin-top: 4px; }
  .heat-row em { grid-column: 4; grid-row: 1; }
  .heat-row > b { font-size: 24px; }
  .mode-panel { grid-template-columns: 1fr; }
  .mode-image { height: 360px; }
  .stills-strip { grid-template-columns: 1fr 1fr; }
  .stills-strip figure { height: 360px; }
  .quote-grid { grid-template-columns: 1fr; }
  .faq-columns { grid-template-columns: 1fr; gap: 0; }
  .faq-col + .faq-col { border-top: 0; }
  .footer-inner { grid-template-columns: 1fr auto; }
  .footer-inner > p { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .container { width: calc(100% - 28px); }
  .hero { min-height: 680px; }
  .hero h1 { font-size: 5.4rem; }
  .hero-sub { font-size: 24px; }
  .hero-desc { font-size: 13.5px; }
  .hero-stats { grid-template-columns: 1fr 1fr; margin-top: 26px; }
  .hero-stats div:nth-child(3) { border-left: 0; padding-left: 0; }
  .hero-stats b { font-size: 21px; }
  .feature-poster { min-height: 430px; }
  .feature-copy h2 { font-size: 3.8rem; }
  .program-list a { grid-template-columns: 58px 26px minmax(0,1fr) 16px; gap: 9px; }
  .program-list span { font-size: 12px; }
  .program-list h3 { font-size: 16px; }
  .program-list em { display: none; }
  .heat-row { grid-template-columns: 38px 42px minmax(0,1fr) 46px; gap: 8px; }
  .heat-row > b { font-size: 20px; }
  .heat-row img { width: 42px; height: 56px; }
  .heat-name h3 { font-size: 14px; }
  .heat-row em { font-size: 9px; }
  .mode-tabs { grid-template-columns: 1fr; }
  .mode-tabs button { border-right: 0; }
  .mode-tabs button span { font-size: 22px; }
  .mode-image { height: 300px; }
  .stills-strip figure { height: 250px; }
  .stills-strip figcaption { font-size: 8px; }
  .spec-list div { grid-template-columns: 28px 120px minmax(0,1fr); gap: 9px; }
  .spec-list span { font-size: 15px; }
  .spec-list p { font-size: 12px; }
  .quotes { padding: 50px 0; }
  .quote-grid p { font-size: 16px; }
  .down-qr { display: block; padding: 15px; }
  .down-qr img { width: 120px; height: 120px; }
  .faq-item h3 { font-size: 17px; }
  .footer-inner { display: block; }
  .footer-links { margin: 14px 0; }
  .footer-inner small { display: block; margin-top: 15px; }
  body { padding-bottom: 64px; }
  .mobile-download { display: flex; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 120; align-items: center; justify-content: center; gap: 7px; padding: 12px 16px; background: var(--orange); color: #fff; font-size: 15px; font-weight: 900; }
  .mobile-download span { font-size: 8.5px; font-weight: 500; opacity: .75; }
}
@media (max-width: 390px) {
  .hero h1 { font-size: 4.5rem; }
  .stills-strip { grid-template-columns: 1fr; }
  .stills-strip figure { height: 300px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}