:root {
  --felt: #0b6b52;
  --felt-deep: #083f35;
  --ink: #17201c;
  --muted: #63736b;
  --paper: #fbfaf5;
  --line: #d9ded2;
  --gold: #d9a441;
  --red: #c8383f;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(8, 63, 53, .18);
  --ease: cubic-bezier(.2, .75, .25, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 14px clamp(18px, 4vw, 58px);
  border-bottom: 1px solid rgba(255,255,255,.16);
  background: rgba(8, 63, 53, .94);
  color: var(--white);
  backdrop-filter: blur(16px);
  transition: padding .28s var(--ease), box-shadow .28s var(--ease);
}

.site-header.scrolled {
  padding-top: 9px;
  padding-bottom: 9px;
  box-shadow: 0 10px 28px rgba(8, 63, 53, .2);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, #fff0b7, #d9a441 55%, #8a5b17);
  color: #1a211d;
  font-weight: 900;
  letter-spacing: 0;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease);
}

.brand:hover .brand-mark {
  transform: rotate(-8deg) scale(1.06);
  box-shadow: 0 0 0 5px rgba(217, 164, 65, .14);
}

.brand strong, .brand small { display: block; line-height: 1.15; }
.brand strong { font-size: 17px; }
.brand small { color: rgba(255,255,255,.72); font-size: 12px; margin-top: 3px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.site-nav a {
  padding: 9px 12px;
  border-radius: 6px;
  color: rgba(255,255,255,.82);
  font-size: 14px;
  transition: background .22s ease, color .22s ease, transform .22s ease;
}

.site-nav a:hover,
.site-nav a.active {
  background: rgba(255,255,255,.12);
  color: var(--white);
  transform: translateY(-2px);
}

.header-action,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 11px 18px;
  border-radius: 6px;
  font-weight: 800;
  white-space: nowrap;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), background .24s ease;
}

.header-action,
.btn.primary {
  background: var(--gold);
  color: #17201c;
  box-shadow: 0 10px 22px rgba(217, 164, 65, .28);
}

.header-action:hover,
.btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(217, 164, 65, .38);
}

.btn.secondary {
  border: 1px solid rgba(255,255,255,.34);
  color: var(--white);
  transition: transform .24s var(--ease), background .24s ease, border-color .24s ease;
}

.btn.secondary:hover {
  transform: translateY(-3px);
  border-color: rgba(255,255,255,.7);
  background: rgba(255,255,255,.1);
}

.btn.full { width: 100%; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 6px;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 19px;
  height: 2px;
  margin: 4px auto;
  background: var(--white);
}

.section-pad {
  padding: clamp(54px, 8vw, 96px) clamp(18px, 5vw, 72px);
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  align-items: center;
  gap: clamp(28px, 6vw, 72px);
  background:
    linear-gradient(120deg, rgba(8,63,53,.96), rgba(11,107,82,.78)),
    url("../img/felt-pattern.svg");
  color: var(--white);
}

.hero h1,
.page-hero h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-text {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(255,255,255,.82);
  font-size: 18px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.trust-row span,
.keyword-cloud span {
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 999px;
  padding: 8px 13px;
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.86);
  font-size: 13px;
}

.hero-art {
  filter: drop-shadow(0 26px 40px rgba(0,0,0,.26));
  animation: hero-art-in .95s var(--ease) both;
}

.hero-art img {
  transform-origin: center;
  animation: table-float 6s ease-in-out 1s infinite;
}

.quick-panel {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.quick-panel a {
  padding: 28px clamp(18px, 3vw, 36px);
  background: var(--white);
  transition: background .24s ease, transform .24s var(--ease), box-shadow .24s var(--ease);
}

.quick-panel a:hover {
  position: relative;
  z-index: 1;
  background: #f4fbf1;
  transform: translateY(-5px);
  box-shadow: 0 14px 26px rgba(8, 63, 53, .12);
}

.quick-panel strong,
.quick-panel span { display: block; }
.quick-panel strong { font-size: 20px; }
.quick-panel span { margin-top: 5px; color: var(--muted); font-size: 14px; }

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, .55fr);
  gap: clamp(28px, 6vw, 70px);
  align-items: start;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 { margin: 0 0 10px; line-height: 1.25; letter-spacing: 0; }
p { margin: 0; color: var(--muted); }

.feature-grid,
.step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 30px;
}

.feature-grid article,
.step-grid article,
.process-list article,
.info-card,
.download-card,
.side-index,
.faq details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(23, 32, 28, .05);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s ease;
}

.feature-grid article:hover,
.step-grid article:hover,
.process-list article:hover,
.info-card:hover,
.download-card:hover,
.side-index:hover,
.faq details:hover {
  transform: translateY(-6px);
  border-color: rgba(11, 107, 82, .32);
  box-shadow: 0 18px 38px rgba(8, 63, 53, .12);
}

.feature-grid article,
.step-grid article,
.process-list article {
  padding: 22px;
}

.feature-grid span,
.process-list span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--red);
  font-weight: 900;
}

.download-card {
  padding: 18px;
  box-shadow: var(--shadow);
}

.download-card img {
  width: 100%;
  border-radius: 6px;
  background: #0e473b;
  transition: transform .42s var(--ease);
}

.download-card:hover img {
  transform: scale(1.025);
}

.download-card h3 { margin-top: 20px; font-size: 24px; }
.download-card p { margin-bottom: 18px; }
.download-card.sticky { position: sticky; top: 96px; }

.band {
  padding: clamp(54px, 8vw, 92px) clamp(18px, 5vw, 72px);
  background: #eef5ed;
}

.band.compact { background: #f4f0e7; }

.advantage-section {
  background: #ffffff;
}

.advantage-card {
  min-height: 292px;
}

.advantage-index {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 20px;
  border: 1px solid rgba(11, 107, 82, .18);
  border-radius: 50%;
  background: #eef5ed;
  color: var(--felt-deep);
  font-size: 13px;
  font-weight: 900;
}

.advantage-card.accent-red .advantage-index {
  border-color: rgba(200, 56, 63, .2);
  background: #fff0f0;
  color: var(--red);
}

.advantage-card.accent-gold .advantage-index {
  border-color: rgba(217, 164, 65, .28);
  background: #fff8e7;
  color: #8a5b17;
}

.mini-list {
  display: grid;
  gap: 6px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 13px;
}

.mini-list li {
  position: relative;
  padding-left: 16px;
}

.mini-list li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.service-flow .step-grid {
  margin-top: 0;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-heading.left {
  margin: 0;
  text-align: left;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.cards.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.info-card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  min-height: 210px;
}

.info-card::after {
  content: "";
  position: absolute;
  top: -80%;
  left: -35%;
  width: 32%;
  height: 260%;
  background: rgba(255,255,255,.34);
  transform: rotate(22deg) translateX(-260%);
  transition: transform .8s var(--ease);
  pointer-events: none;
}

.info-card:hover::after {
  transform: rotate(22deg) translateX(760%);
}

.info-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: var(--felt);
}

.info-card.accent-red::before { background: var(--red); }
.info-card.accent-gold::before { background: var(--gold); }
.info-card.accent-green::before { background: #26926d; }

.info-card h3 { font-size: 24px; }
.info-card a { display: inline-block; margin-top: 20px; color: var(--felt); font-weight: 900; }

.content-split {
  display: grid;
  grid-template-columns: minmax(260px, .55fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 70px);
  align-items: start;
}

.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.keyword-cloud span {
  border-color: var(--line);
  background: var(--white);
  color: var(--ink);
  transition: transform .24s var(--ease), background .24s ease, border-color .24s ease;
}

.keyword-cloud span:hover {
  transform: translateY(-4px) rotate(-1deg);
  border-color: var(--gold);
  background: #fff9e9;
}

.service-links-section {
  background: #f8faf5;
}

.service-link-list {
  display: grid;
  gap: 12px;
}

.service-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 24px rgba(23, 32, 28, .05);
  transition: transform .26s var(--ease), border-color .26s ease, box-shadow .26s var(--ease);
}

.service-link:hover {
  transform: translateX(6px);
  border-color: rgba(11, 107, 82, .35);
  box-shadow: 0 15px 30px rgba(8, 63, 53, .1);
}

.service-link strong,
.service-link small {
  display: block;
}

.service-link strong {
  color: var(--ink);
  font-size: 17px;
}

.service-link small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.service-link b {
  flex: 0 0 auto;
  color: var(--felt);
  font-size: 22px;
  font-weight: 400;
  transition: transform .24s var(--ease);
}

.service-link:hover b {
  transform: translateX(4px);
}

.page-hero {
  padding: clamp(74px, 10vw, 122px) clamp(18px, 5vw, 72px);
  background:
    linear-gradient(120deg, rgba(8,63,53,.96), rgba(23,32,28,.78)),
    url("../img/felt-pattern.svg");
  color: var(--white);
}

.page-hero p:last-child {
  max-width: 740px;
  margin-top: 20px;
  color: rgba(255,255,255,.78);
  font-size: 18px;
}

.club-hero { background-color: var(--felt-deep); }
.guide-hero { background-color: #442a35; }
.support-hero { background-color: #2d4a44; }

.timeline {
  display: grid;
  gap: 18px;
}

.timeline article {
  padding: 28px;
  border-left: 5px solid var(--gold);
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(23, 32, 28, .07);
}

.timeline span {
  color: var(--red);
  font-weight: 900;
  text-transform: uppercase;
}

.step-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.step-grid strong {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--felt);
  color: var(--white);
}

.process-list {
  display: grid;
  gap: 16px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: clamp(24px, 5vw, 56px);
  align-items: start;
}

.longform {
  max-width: 860px;
}

.longform h2 {
  margin-top: 34px;
  font-size: 30px;
}

.longform h2:first-child { margin-top: 0; }
.longform p { font-size: 17px; }

.side-index {
  position: sticky;
  top: 96px;
  padding: 22px;
}

.side-index h2 { font-size: 22px; }
.side-index a {
  display: block;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--felt-deep);
  font-weight: 800;
}

.faq {
  max-width: 920px;
  margin: 0 auto;
}

.faq details {
  margin-bottom: 14px;
  padding: 20px 24px;
}

.faq summary {
  cursor: pointer;
  font-size: 19px;
  font-weight: 900;
}

.faq p { margin-top: 12px; }

.home-faq {
  background: #ffffff;
}

.home-faq .faq {
  max-width: none;
  margin: 0;
}

.home-faq .btn {
  margin-top: 24px;
}

.site-footer {
  padding: 46px clamp(18px, 5vw, 72px) 22px;
  background: #17201c;
  color: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) .55fr .75fr;
  gap: 34px;
}

.footer-grid h2 {
  margin-bottom: 12px;
  font-size: 17px;
}

.footer-grid p,
.footer-grid a {
  color: rgba(255,255,255,.72);
  font-size: 14px;
}

.footer-grid a {
  display: block;
  margin: 8px 0;
  transition: color .2s ease, transform .2s var(--ease);
}

.footer-grid a:hover {
  color: var(--gold);
  transform: translateX(4px);
}

.footer-brand { margin-bottom: 16px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.58);
  font-size: 13px;
}

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .72s var(--ease), transform .72s var(--ease);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes hero-art-in {
  from { opacity: 0; transform: translateY(28px) scale(.96) rotate(2deg); }
  to { opacity: 1; transform: translateY(0) scale(1) rotate(0); }
}

@keyframes table-float {
  0%, 100% { transform: translateY(0) rotate(0); }
  50% { transform: translateY(-9px) rotate(-.6deg); }
}

@media (max-width: 980px) {
  .header-action { display: none; }
  .nav-toggle { display: inline-block; margin-left: auto; }
  .site-nav {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border-radius: 8px;
    background: var(--felt-deep);
    box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .hero,
  .two-col,
  .content-split,
  .article-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .quick-panel,
  .cards,
  .cards.four,
  .feature-grid,
  .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .download-card.sticky,
  .side-index {
    position: static;
  }
}

@media (max-width: 620px) {
  .site-header { padding: 12px 16px; }
  .brand strong { font-size: 15px; }
  .brand small { font-size: 11px; }
  .hero { min-height: auto; }
  .hero h1,
  .page-hero h1 {
    font-size: 36px;
  }
  .hero-text,
  .page-hero p:last-child {
    font-size: 16px;
  }
  .quick-panel,
  .cards,
  .cards.four,
  .feature-grid,
  .step-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}