@charset "UTF-8";

:root {
  --bg: #150b0d;
  --bg-2: #1c0f12;
  --panel: #241316;
  --panel-2: #2c171b;
  --line: #47282d;
  --ink: #f7efe0;
  --muted: #b9a394;
  --red: #9b1b30;
  --gold: #d4af37;
  --gold-soft: rgba(212, 175, 55, .16);
  --shell: 1180px;
  --header-height: 70px;
  --serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 18px); }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
svg { display: block; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--gold);
  font-family: var(--serif);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  line-height: 1.4;
}
.eyebrow::before { width: 18px; height: 1px; content: ""; background: currentColor; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(21, 11, 13, .95);
  backdrop-filter: blur(12px);
}
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--shell));
  min-height: var(--header-height);
  margin: 0 auto;
  gap: 20px;
}
.brand { display: inline-flex; align-items: center; flex: none; gap: 10px; font-family: var(--serif); font-size: 22px; font-weight: 900; letter-spacing: 1px; }
.brand img { width: 38px; height: 38px; border: 1px solid rgba(212, 175, 55, .5); border-radius: 4px; object-fit: contain; background: #2a1417; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border: 1px solid rgba(212, 175, 55, .6);
  border-radius: 2px;
  color: var(--gold);
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
}
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(12px, 1.9vw, 25px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 1px solid transparent; color: #c3ac9d; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--gold); color: #fff6e4; }
.nav-actions { display: flex; align-items: center; flex: none; gap: 10px; }
.nav-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid var(--gold);
  border-radius: 3px;
  background: var(--gold);
  color: #2b1308;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.nav-download:hover { background: transparent; color: var(--gold); }
.nav-download svg, .button svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); border-radius: 3px; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 5px auto; background: var(--ink); transition: transform .18s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* hero: scroll frame with rods, left copy, right card, seal */
.hero {
  position: relative;
  overflow: hidden;
  padding: 58px 0 66px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(640px 340px at 78% 6%, rgba(155, 27, 48, .5), transparent 72%),
    radial-gradient(420px 260px at 6% 92%, rgba(212, 175, 55, .1), transparent 70%),
    linear-gradient(180deg, #1b0e11 0%, var(--bg) 100%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    repeating-linear-gradient(90deg, rgba(212, 175, 55, .05) 0 1px, transparent 1px 74px),
    repeating-linear-gradient(0deg, rgba(212, 175, 55, .04) 0 1px, transparent 1px 74px);
  mask-image: radial-gradient(70% 70% at 50% 40%, #000, transparent 100%);
  pointer-events: none;
}
.hero-scroll {
  position: relative;
  padding: clamp(34px, 4.6vw, 58px) clamp(26px, 4.6vw, 58px) clamp(46px, 5vw, 64px);
  border: 1px solid rgba(212, 175, 55, .42);
  border-radius: 3px;
  background:
    linear-gradient(180deg, rgba(155, 27, 48, .18), transparent 32%),
    repeating-linear-gradient(180deg, rgba(255, 246, 228, .022) 0 28px, transparent 28px 56px),
    linear-gradient(160deg, #2a1418, #1a0d10 72%);
  box-shadow: inset 0 0 0 6px rgba(155, 27, 48, .16), 0 30px 70px rgba(0, 0, 0, .45);
}
.scroll-rod {
  position: absolute;
  right: -14px;
  left: -14px;
  z-index: 2;
  height: 24px;
  border-radius: 999px;
  background: linear-gradient(180deg, #6a4a1b, #d4af37 42%, #8a6423 72%, #4d3411);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .5);
}
.scroll-rod::before,
.scroll-rod::after {
  position: absolute;
  top: 50%;
  width: 10px;
  height: 30px;
  border-radius: 999px;
  content: "";
  background: linear-gradient(180deg, #8a6423, #4d3411);
  transform: translateY(-50%);
}
.scroll-rod::before { left: -4px; }
.scroll-rod::after { right: -4px; }
.scroll-rod-top { top: -14px; }
.scroll-rod-bottom { bottom: -14px; }

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(240px, .88fr);
  align-items: center;
  gap: clamp(24px, 4vw, 54px);
}
.hero-copy { min-width: 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: #c9b18d;
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 3px;
}
.hero-kicker::after { width: 46px; height: 1px; content: ""; background: rgba(212, 175, 55, .55); }
.hero h1 {
  margin: 0;
  color: #fff8e8;
  font-family: var(--serif);
  font-size: clamp(52px, 7.6vw, 96px);
  font-weight: 900;
  letter-spacing: 2px;
  line-height: 1.02;
  text-shadow: 0 12px 40px rgba(155, 27, 48, .5);
}
.hero-subtitle {
  margin: 16px 0 0;
  color: var(--gold);
  font-family: var(--serif);
  font-size: clamp(17px, 1.9vw, 22px);
  font-weight: 700;
  letter-spacing: 1.5px;
  line-height: 1.5;
}
.hero-lead { max-width: 470px; margin: 13px 0 0; color: #c2ab9b; font-size: 14px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; margin-top: 26px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 14px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button-primary { background: var(--gold); color: #2b1308; box-shadow: 0 12px 28px rgba(212, 175, 55, .22); }
.button-primary:hover { background: #e6c356; transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 34px; font-size: 15px; }
.text-link { color: #d6c1a9; border-bottom: 1px dashed #6b4c44; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--gold); }

.hero-card {
  position: relative;
  justify-self: end;
  width: min(100%, 300px);
  margin: 0;
  padding: 7px;
  border: 1px solid rgba(212, 175, 55, .55);
  background: rgba(30, 15, 18, .9);
  box-shadow: 0 20px 44px rgba(0, 0, 0, .5);
  transform: rotate(-1.6deg);
}
.hero-card::after {
  position: absolute;
  inset: 3px;
  border: 1px solid rgba(212, 175, 55, .22);
  content: "";
  pointer-events: none;
}
.hero-card img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; object-position: center 26%; }
.hero-card figcaption { padding: 10px 6px 4px; border-top: 1px solid rgba(212, 175, 55, .24); margin-top: 7px; }
.hero-card figcaption b { display: block; color: var(--gold); font-family: var(--serif); font-size: 13px; letter-spacing: .6px; }
.hero-card figcaption span { display: block; color: #b09a89; font-size: 10.5px; line-height: 1.6; }
.hero-seal {
  position: absolute;
  right: clamp(18px, 4vw, 46px);
  bottom: -24px;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 2px solid rgba(212, 175, 55, .8);
  background: rgba(155, 27, 48, .92);
  color: #ffeccb;
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.15;
  text-align: center;
  transform: rotate(-6deg);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .45);
}
.hero-seal::before { position: absolute; inset: 4px; border: 1px solid rgba(255, 236, 203, .35); content: ""; }

/* features */
.features { padding: 76px 0 82px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.section-heading { margin-bottom: 32px; }
.section-heading h2, .download h2 { margin: 0; font-family: var(--serif); font-size: clamp(25px, 2.9vw, 36px); font-weight: 900; letter-spacing: .5px; line-height: 1.35; }
.section-heading > p:last-child { max-width: 620px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(210px, 300px); align-items: end; gap: 28px; }
.section-heading-split > p:last-child { margin: 0 0 5px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature-card {
  position: relative;
  padding: 30px 26px 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(155, 27, 48, .16), transparent 55%);
}
.feature-no {
  position: absolute;
  top: 18px;
  right: 20px;
  color: rgba(212, 175, 55, .32);
  font-family: var(--serif);
  font-size: 34px;
  line-height: 1;
}
.feature-card h3 { margin: 0 0 8px; padding-right: 40px; font-family: var(--serif); font-size: 19px; font-weight: 900; letter-spacing: .6px; }
.feature-card p { max-width: 380px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }

/* shots: two-by-two horizontal cards */
.shots { padding: 76px 0 84px; }
.shot-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.shot-card {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  align-items: stretch;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}
.shot-card img { width: 100%; height: 100%; aspect-ratio: 9 / 16; object-fit: cover; object-position: center top; }
.shot-card figcaption { display: flex; flex-direction: column; justify-content: center; gap: 4px; padding: 16px 18px; border-left: 1px solid var(--line); }
.shot-card figcaption b { color: var(--gold); font-family: var(--serif); font-size: 13px; }
.shot-card figcaption span { font-family: var(--serif); font-size: 16px; font-weight: 800; line-height: 1.4; }
.shot-card figcaption small { display: block; margin-top: 3px; color: var(--muted); font-family: "Microsoft YaHei", sans-serif; font-size: 11px; font-weight: 400; line-height: 1.6; }

/* faq */
.faq { padding: 74px 0 80px; border-top: 1px solid var(--line); background: var(--bg-2); }
.faq-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 280px); align-items: end; gap: 24px; }
.faq-heading > p:last-child { margin: 0 0 6px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-family: var(--serif); font-size: 16px; font-weight: 900; letter-spacing: .4px; }
.faq-list summary i { position: relative; flex: none; width: 24px; height: 24px; border: 1px solid rgba(212, 175, 55, .4); border-radius: 50%; }
.faq-list summary i::before,
.faq-list summary i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1px;
  content: "";
  background: var(--gold);
  transform: translate(-50%, -50%);
}
.faq-list summary i::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .2s ease; }
.faq-list details[open] summary i::after { transform: translate(-50%, -50%) rotate(0); }
.faq-list details p { padding: 0 30px 18px 0; margin: 0; color: var(--muted); font-size: 13.4px; line-height: 1.9; }

/* reviews: one column, wide rows */
.reviews { padding: 76px 0 82px; }
.review-list { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; }
.review-card {
  padding: 20px 24px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  background:
    linear-gradient(96deg, rgba(155, 27, 48, .18), transparent 46%),
    var(--panel);
}
.review-meta { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 6px; padding-bottom: 9px; margin-bottom: 9px; border-bottom: 1px dashed var(--line); }
.review-meta b { color: var(--gold); font-family: var(--serif); font-size: 14px; letter-spacing: .6px; }
.review-meta time { color: #93796c; font-family: "Courier New", monospace; font-size: 10.5px; }
.review-card p { margin: 0; color: #cbb5a6; font-size: 13px; line-height: 1.85; }

/* steps */
.steps { padding: 72px 0 78px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.step-list li { position: relative; padding: 26px 24px 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.step-list span {
  display: block;
  margin-bottom: 12px;
  color: var(--gold);
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
}
.step-list h3 { margin: 0 0 7px; font-family: var(--serif); font-size: 18px; font-weight: 900; letter-spacing: .8px; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* download: split copy and action */
.download { padding: 34px 0 38px; }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
  align-items: center;
  gap: 30px;
  padding: 46px clamp(24px, 4.6vw, 56px);
  border: 1px solid rgba(212, 175, 55, .38);
  background:
    linear-gradient(120deg, rgba(155, 27, 48, .85), rgba(84, 14, 26, .92)),
    var(--red);
}
.download h2 { color: #fff6e3; max-width: 560px; }
.download-copy > p:last-child { max-width: 460px; margin: 13px 0 0; color: #e2c9b4; font-size: 13.5px; }
.download .eyebrow { color: #f0d17c; }
.download-action { justify-self: end; text-align: right; }
.download .button-primary { background: var(--gold); color: #2b1308; }
.download .button-primary:hover { background: #e9c85f; }
.download-notes { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px 16px; padding: 18px 0 0; margin: 20px 0 0; border-top: 1px solid rgba(255, 236, 203, .24); list-style: none; }
.download-notes li { color: #e6cdb6; font-size: 11px; }
.download-notes li::before { margin-right: 6px; content: "◆"; color: #f0d17c; font-size: 8px; }

/* footer */
.site-footer { padding: 44px 0 52px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 20px 40px; align-items: start; }
.footer-brand strong { font-family: var(--serif); font-size: 19px; font-weight: 900; letter-spacing: .8px; }
.footer-brand p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-nav a { color: #c2ab9d; font-size: 12px; }
.footer-nav a:hover { color: var(--gold); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-meta p { margin: 0; }
.footer-meta a { color: var(--muted); }
.disclaimer { grid-column: 1 / -1; margin: 0; color: #93796c; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) 244px; gap: 24px; }
  .hero-card { width: 244px; }
}
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 8px 24px 16px;
    border-bottom: 1px solid var(--line);
    background: var(--bg);
    box-shadow: 0 16px 26px rgba(0, 0, 0, .5);
  }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .hero { padding-top: 42px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { justify-self: start; width: min(260px, 76%); margin-top: 6px; }
  .hero-seal { right: 20px; bottom: -20px; }
  .faq-heading { grid-template-columns: 1fr; gap: 8px; }
  .faq-heading > p:last-child { margin: 0; }
  .step-list { grid-template-columns: 1fr; }
  .download-inner { grid-template-columns: 1fr; gap: 22px; }
  .download-action { justify-self: start; text-align: left; }
  .download-notes { justify-content: flex-start; }
}
@media (max-width: 700px) {
  .shot-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-shell, .nav-shell { width: calc(100% - 32px); }
  .hero-scroll { padding: 30px 20px 44px; }
  .hero h1 { font-size: clamp(46px, 14vw, 64px); }
  .hero-lead { font-size: 13.5px; }
  .scroll-rod { right: -8px; left: -8px; }
  .feature-grid { grid-template-columns: 1fr; }
  .shot-card { grid-template-columns: 108px minmax(0, 1fr); }
  .section-heading-split { grid-template-columns: 1fr; gap: 10px; }
  .section-heading-split > p:last-child { margin: 0; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .brand { font-size: 17px; gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 8px; }
  .nav-download { min-height: 34px; padding: 0 10px; font-size: 11px; gap: 5px; }
  .nav-download svg { width: 14px; height: 14px; }
  .menu-toggle { width: 34px; height: 34px; }
  .hero h1 { font-size: 42px; }
  .hero-subtitle { font-size: 15px; }
  .button { width: 100%; }
  .hero-seal { width: 50px; height: 50px; font-size: 13px; }
}