/* ===== 奢塾 SHESURE — 黑金 ===== */
:root {
  --bg: #0c0b09;
  --bg-alt: #14120e;
  --panel: #1a1712;
  --line: rgba(201, 169, 106, 0.22);
  --line-strong: rgba(201, 169, 106, 0.34);
  --gold: #c9a96a;
  --gold-hi: #e6c98c;
  --white: #f4efe6;
  --muted: rgba(244, 239, 230, 0.62);
  --serif: "Cormorant Garamond", "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--white); font-family: var(--sans); font-weight: 300; line-height: 1.7; }
a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-hi); }
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ===== 导航 ===== */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; background: rgba(12,11,9,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { max-width: 1180px; margin: 0 auto; padding: 0 24px; height: 68px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: baseline; gap: 10px; color: var(--white); }
.brand-mark { font-family: var(--serif); font-weight: 700; font-size: 22px; color: var(--gold); letter-spacing: 2px; }
.brand-name { font-size: 13px; letter-spacing: 4px; color: var(--muted); }
.nav-links { display: flex; gap: 34px; }
.nav-links a { color: var(--white); font-size: 15px; font-weight: 400; }
.nav-links a:hover { color: var(--gold); }
.nav-right { display: flex; align-items: center; gap: 14px; }
.lang-toggle { background: transparent; border: 1px solid var(--line); color: var(--gold); font-size: 13px; letter-spacing: 1px; padding: 6px 14px; border-radius: 999px; cursor: pointer; font-family: var(--sans); }
.lang-toggle:hover { border-color: var(--gold); }
.menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.menu-btn span { width: 22px; height: 2px; background: var(--white); }

/* ===== Hero ===== */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background:
  radial-gradient(ellipse 60% 45% at 78% 18%, rgba(201,169,106,0.16), transparent 60%),
  radial-gradient(ellipse 50% 40% at 12% 85%, rgba(201,169,106,0.08), transparent 60%),
  linear-gradient(165deg, #0c0b09 0%, #12100c 55%, #0c0b09 100%); }
.hero-bg::after { content: ""; position: absolute; inset: 0; background-image:
  linear-gradient(rgba(201,169,106,0.05) 1px, transparent 1px),
  linear-gradient(90deg, rgba(201,169,106,0.05) 1px, transparent 1px);
  background-size: 72px 72px; mask-image: radial-gradient(ellipse at 50% 40%, #000 30%, transparent 75%); }
.hero-inner { position: relative; max-width: 1180px; margin: 0 auto; padding: 140px 24px 80px; }
.hero-kicker { font-size: 13px; letter-spacing: 6px; color: var(--gold); margin-bottom: 26px; }
.hero-title { font-family: var(--serif); font-size: clamp(38px, 6vw, 68px); font-weight: 700; line-height: 1.22; letter-spacing: 2px; }
.hero-title em { font-style: normal; color: var(--gold); }
.hero-sub { max-width: 560px; margin-top: 26px; color: var(--muted); font-size: 17px; }
.hero-cta { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 14px 34px; font-size: 15px; font-weight: 500; letter-spacing: 2px; border-radius: 2px; cursor: pointer; transition: all .25s; border: 1px solid transparent; font-family: var(--sans); }
.btn-gold { background: linear-gradient(135deg, var(--gold) 0%, #b08d4f 100%); color: #14120e; }
.btn-gold:hover { background: linear-gradient(135deg, var(--gold-hi) 0%, var(--gold) 100%); color: #000; transform: translateY(-1px); }
.btn-ghost { border-color: var(--line); color: var(--white); background: transparent; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-block { width: 100%; }
.hero-stats { display: flex; gap: 56px; margin-top: 72px; flex-wrap: wrap; }
.stat b { display: block; font-family: var(--serif); font-size: 40px; font-weight: 600; color: var(--gold); }
.stat b i { font-style: normal; font-size: 24px; }
.stat span { font-size: 13px; color: var(--muted); letter-spacing: 1px; }

/* ===== 板块通用 ===== */
.section { padding: 110px 0; }
section[id] { scroll-margin-top: 68px; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.sec-kicker { font-size: 12px; letter-spacing: 5px; color: var(--gold); margin-bottom: 14px; }
.sec-title { font-family: var(--serif); font-size: clamp(30px, 4vw, 44px); font-weight: 700; letter-spacing: 2px; }
.sec-sub { margin-top: 12px; color: var(--muted); font-size: 16px; }

/* ===== 卡片 ===== */
.grid { display: grid; gap: 22px; margin-top: 52px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { position: relative; background: var(--panel); border: 1px solid var(--line); padding: 34px 26px 30px; transition: all .3s; }
.card:hover { transform: translateY(-4px); border-color: var(--gold); }
.card-no { font-family: var(--serif); font-size: 15px; color: var(--gold); letter-spacing: 2px; margin-bottom: 18px; }
.card h3 { font-family: var(--serif); font-size: 21px; font-weight: 600; letter-spacing: 1px; margin-bottom: 12px; }
.card p { font-size: 14px; color: var(--muted); }
.price-note { margin-top: 34px; font-size: 14px; color: var(--muted); }
.price-note::before { content: "※ "; color: var(--gold); }

/* ===== 流程 ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 52px; }
.step { border-top: 1px solid var(--line); padding-top: 24px; }
.step-no { font-family: var(--serif); font-size: 34px; color: var(--gold); font-weight: 600; }
.step h4 { font-size: 18px; font-weight: 500; margin: 10px 0 8px; letter-spacing: 1px; }
.step p { font-size: 14px; color: var(--muted); }

/* ===== 关于 ===== */
.about-inner { display: grid; grid-template-columns: 1.3fr 1fr; gap: 60px; align-items: center; }
.about-text p { margin-top: 18px; color: var(--muted); font-size: 15.5px; }
.about-points { list-style: none; margin-top: 26px; }
.about-points li { padding: 10px 0 10px 26px; position: relative; font-size: 15px; border-top: 1px solid var(--line); }
.about-points li::before { content: ""; position: absolute; left: 2px; top: 19px; width: 8px; height: 8px; background: var(--gold); transform: rotate(45deg); }
.about-card { background: var(--panel); border: 1px solid var(--line); padding: 38px 32px; }
.founder { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.founder-avatar { width: 58px; height: 58px; border-radius: 50%; background: linear-gradient(135deg, var(--gold), #8f6f3c); color: #14120e; font-family: var(--serif); font-size: 26px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.founder b { display: block; font-size: 17px; font-weight: 500; }
.founder span { font-size: 13px; color: var(--muted); }
.about-card blockquote { font-family: var(--serif); font-size: 19px; line-height: 1.8; color: var(--gold-hi); border-left: 2px solid var(--gold); padding-left: 18px; }

/* ===== 联系 ===== */
.contact-inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; }
.contact-lead { margin-top: 16px; color: var(--muted); }
.contact-list { list-style: none; margin-top: 36px; }
.contact-list li { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 15px 0; border-top: 1px solid var(--line); font-size: 15px; }
.contact-list li span { color: var(--muted); flex-shrink: 0; }
.contact-list li em { font-style: normal; color: var(--white); text-align: right; }
.contact-form { background: var(--panel); border: 1px solid var(--line); padding: 40px 36px; }
.contact-form h3 { font-family: var(--serif); font-size: 24px; letter-spacing: 2px; margin-bottom: 26px; }
.field { margin-bottom: 18px; flex: 1; }
.field-row { display: flex; gap: 16px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; letter-spacing: 1px; }
.field input, .field select, .field textarea {
  width: 100%; background: #0f0d0a; border: 1px solid var(--line); color: var(--white);
  padding: 12px 14px; font-size: 15px; font-family: var(--sans); border-radius: 2px; outline: none; transition: border-color .25s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--gold); }
.field textarea { resize: vertical; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--muted); margin: 4px 0 20px; cursor: pointer; }
.consent input { margin-top: 4px; accent-color: var(--gold); }
.form-status { margin-top: 14px; font-size: 14px; min-height: 20px; }
.form-status.ok { color: #9ccc65; }
.form-status.err { color: #ef9a9a; }

/* ===== 页脚 ===== */
.footer { border-top: 1px solid var(--line); padding: 54px 0 40px; background: var(--bg-alt); }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer .brand-mark { font-size: 20px; }
.footer p { color: var(--muted); font-size: 13px; margin-top: 10px; }
.footer-meta { text-align: right; }
.copyright { opacity: .6; }

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .grid-4, .steps { grid-template-columns: repeat(2, 1fr); }
  .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 44px; }
}
@media (max-width: 640px) {
  .nav-links { position: fixed; top: 68px; left: 0; right: 0; background: rgba(12,11,9,.97); flex-direction: column; gap: 0; padding: 10px 24px 20px; display: none; border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 0; border-top: 1px solid var(--line); }
  .menu-btn { display: flex; }
  .grid-4, .steps { grid-template-columns: 1fr; }
  .field-row { flex-direction: column; gap: 0; }
  .hero-stats { gap: 32px; }
  .section { padding: 76px 0; }
  .footer-meta { text-align: left; }
}