/* =====================================================
   宅趣翻番 · C端品牌官网（深度版）
   深炭 + 暖金 + 米白 · 工业质感与生活温度并存
===================================================== */

:root {
  --color-bg: #14161B;
  --color-bg-2: #1B1F26;
  --color-bg-3: #232830;
  --color-paper: #F5F0E6;
  --color-ink: #0F1216;
  --color-text: #E8E2D5;
  --color-text-dim: #9A9489;
  --color-gold: #C8A567;
  --color-gold-2: #E8B96A;
  --color-line: rgba(255, 255, 255, 0.08);
  --color-line-2: rgba(200, 165, 103, 0.4);
  --shadow-1: 0 10px 30px rgba(0, 0, 0, 0.4);
  --shadow-2: 0 30px 60px rgba(0, 0, 0, 0.5);
  --max-w: 1320px;
  --font-zh: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-en: "Helvetica Neue", "Inter", system-ui, sans-serif;
  --font-num: "Manrope", "DIN Alternate", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-zh);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s; }
ul { list-style: none; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }
.eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 500;
}
.section-title {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-paper);
  margin-top: 16px;
}
.section-title .accent { color: var(--color-gold); }
.section-sub {
  font-size: 17px;
  color: var(--color-text-dim);
  margin-top: 18px;
  max-width: 760px;
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: 2px;
  transition: all .3s cubic-bezier(.2, .8, .2, 1);
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-gold { background: var(--color-gold); color: var(--color-ink); }
.btn-gold:hover {
  background: var(--color-gold-2);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(200, 165, 103, 0.3);
}
.btn-line { border-color: var(--color-text); color: var(--color-text); }
.btn-line:hover { background: var(--color-text); color: var(--color-ink); }
.btn-ghost { border-color: var(--color-line-2); color: var(--color-gold); }
.btn-ghost:hover { background: rgba(200, 165, 103, 0.08); border-color: var(--color-gold); }
.arrow::after { content: "→"; font-size: 18px; transition: transform .3s; }
.btn:hover .arrow::after { transform: translateX(4px); }

/* ============== 导航 ============== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(20, 22, 27, 0.7);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-line);
  transition: all .3s;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand img { height: 52px; width: auto; }
.brand-text { font-size: 14px; letter-spacing: 0.18em; color: var(--color-text-dim); }
.nav-menu { display: flex; gap: 32px; align-items: center; }
.nav-menu a {
  font-size: 14px;
  color: var(--color-text);
  position: relative;
  padding: 4px 0;
}
.nav-menu a:hover { color: var(--color-gold); }
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--color-gold);
  transition: width .3s;
}
.nav-menu a:hover::after { width: 100%; }
.nav-cta {
  padding: 10px 20px;
  background: var(--color-gold);
  color: var(--color-ink);
  font-size: 13px;
  letter-spacing: 0.05em;
  border-radius: 2px;
  font-weight: 500;
}
.nav-cta:hover { background: var(--color-gold-2); }
@media (max-width: 1100px) { .nav-menu { display: none; } .brand-text { display: none; } }

/* ============== Hero ============== */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('images/bathroom/main.jpg') center/cover;
  filter: brightness(0.4) saturate(0.9);
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20,22,27,0.55) 0%, rgba(20,22,27,0.35) 40%, rgba(20,22,27,0.95) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 72px;
  align-items: center;
}
@media (max-width: 1000px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero { min-height: auto; }
}
/* 品牌主视觉锁定区 */
.hero-brand {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 26px;
}
.hb-logo img { height: 116px; width: auto; display: block; }
.hb-name {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-paper);
  letter-spacing: 0.08em;
  line-height: 1.15;
}
.hb-slogan {
  font-size: 14px;
  color: var(--color-gold);
  letter-spacing: 0.3em;
  margin-top: 8px;
  font-weight: 500;
}
@media (max-width: 640px) {
  .hb-logo img { height: 88px; }
  .hb-name { font-size: 28px; }
  .hb-slogan { font-size: 12px; letter-spacing: 0.2em; }
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--color-line-2);
  border-radius: 100px;
  font-size: 12px;
  color: var(--color-gold);
  letter-spacing: 0.15em;
  margin-bottom: 28px;
}
.hero-tag .dot {
  width: 6px; height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero h1 {
  font-size: clamp(38px, 5.5vw, 80px);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-paper);
}
.hero h1 .accent {
  color: var(--color-gold);
  position: relative;
  display: inline-block;
}
.hero-sub { margin-top: 28px; font-size: 18px; color: var(--color-text); line-height: 1.75; max-width: 580px; }
.hero-cta { margin-top: 44px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--color-line);
}
.metric .num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: -0.02em;
  line-height: 1;
}
.metric .label { font-size: 13px; color: var(--color-text-dim); margin-top: 8px; letter-spacing: 0.08em; }
@media (max-width: 700px) { .hero-metrics { grid-template-columns: repeat(2, 1fr); } }

.hero-visual { position: relative; height: 560px; }
@media (max-width: 1000px) { .hero-visual { height: 340px; } }
.hero-card {
  position: absolute;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-2);
  border: 1px solid var(--color-line);
}
.hero-card-1 { top: 0; right: 0; width: 72%; height: 58%; z-index: 2; }
.hero-card-2 { bottom: 0; left: 0; width: 55%; height: 46%; z-index: 3; border: 2px solid var(--color-gold); }
.hero-card-3 {
  bottom: 6%; right: 6%;
  width: 36%; height: 32%;
  z-index: 3;
  background: var(--color-gold);
  color: var(--color-ink);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 20px 24px;
  overflow: hidden;
}
.hero-card-3 .stat-num { font-family: var(--font-num); font-size: 40px; font-weight: 800; line-height: 1; margin-bottom: 8px; }
.hero-card-3 .stat-text { font-size: 13px; letter-spacing: 0.06em; line-height: 1.45; white-space: nowrap; }
.hero-card img { width: 100%; height: 100%; object-fit: cover; }

/* ============== 通用 Section ============== */
section { padding: 110px 0; position: relative; }
section.tight { padding: 72px 0; }
.section-head { margin-bottom: 56px; }
.section-head.center { text-align: center; }
.section-head.center .section-sub { margin-left: auto; margin-right: auto; }

/* ============== 品牌理念 ============== */
.philosophy {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.philo-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}
@media (max-width: 1000px) { .philo-grid { grid-template-columns: 1fr; gap: 48px; } }
.philo-quote {
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.6;
  color: var(--color-paper);
  font-weight: 600;
  padding-left: 28px;
  border-left: 3px solid var(--color-gold);
  margin-top: 28px;
}
.philo-quote em {
  font-style: normal;
  color: var(--color-gold);
}
.philo-body p { font-size: 15px; color: var(--color-text-dim); line-height: 1.9; margin-top: 20px; }
.philo-body p strong { color: var(--color-text); font-weight: 600; }
.philo-imgs { display: grid; grid-template-rows: repeat(3, 1fr); gap: 12px; height: 560px; }
.philo-imgs img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 8px;
}
@media (max-width: 1000px) { .philo-imgs { height: 300px; grid-template-rows: none; grid-template-columns: repeat(3, 1fr); } }

/* ============== 人群 ============== */
.audience { background: var(--color-bg); }
.aud-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 56px; }
@media (max-width: 1000px) { .aud-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .aud-grid { grid-template-columns: 1fr; } }
.aud-card {
  background: var(--color-bg-2);
  border: 1px solid var(--color-line);
  padding: 36px 28px;
  transition: all .35s;
  position: relative;
  overflow: hidden;
}
.aud-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 3px;
  background: var(--color-gold);
  transition: width .5s;
}
.aud-card:hover { transform: translateY(-6px); border-color: var(--color-line-2); }
.aud-card:hover::before { width: 100%; }
.aud-icon { font-size: 34px; margin-bottom: 20px; }
.aud-card h4 { font-size: 19px; color: var(--color-paper); margin-bottom: 12px; font-weight: 600; }
.aud-card p { font-size: 14px; color: var(--color-text-dim); line-height: 1.75; }
.aud-card .fit { display: inline-block; margin-top: 16px; font-size: 12px; color: var(--color-gold); letter-spacing: 0.1em; border-bottom: 1px solid var(--color-line-2); padding-bottom: 2px; }

/* ============== 对比 ============== */
.compare { background: var(--color-bg-2); border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }
.compare-table { margin-top: 56px; display: flex; flex-direction: column; border: 1px solid var(--color-line); border-radius: 10px; overflow: hidden; }
.compare-row { display: grid; grid-template-columns: 200px 1fr 1fr; }
.compare-row.head { background: var(--color-bg-3); }
.compare-row > div { padding: 22px 28px; border-bottom: 1px solid var(--color-line); font-size: 14px; line-height: 1.7; }
.compare-row > div:nth-child(2) { border-left: 1px solid var(--color-line); border-right: 1px solid var(--color-line); }
.compare-row:last-child > div { border-bottom: none; }
.compare-row .row-label { color: var(--color-gold); font-weight: 600; display: flex; align-items: center; }
.compare-row .old { color: var(--color-text-dim); }
.compare-row .new { color: var(--color-paper); background: rgba(200, 165, 103, 0.05); }
.compare-row.head > div { font-size: 13px; letter-spacing: 0.15em; color: var(--color-gold); font-weight: 600; }
.compare-row .old::before { content: '✕ '; color: #B0574F; }
.compare-row .new::before { content: '✓ '; color: var(--color-gold); font-weight: 700; }
@media (max-width: 800px) {
  .compare-row { grid-template-columns: 90px 1fr 1fr; }
  .compare-row > div { padding: 14px 14px; font-size: 13px; }
}

/* ============== 优势 ============== */
.advantage { background: var(--color-bg); }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 56px; }
@media (max-width: 1000px) { .adv-grid { grid-template-columns: 1fr; } }
.adv-card {
  padding: 44px 34px;
  background: var(--color-bg-2);
  border: 1px solid var(--color-line);
  position: relative;
  overflow: hidden;
  transition: all .4s;
}
.adv-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 3px;
  background: var(--color-gold);
  transition: width .5s;
}
.adv-card:hover { transform: translateY(-6px); border-color: var(--color-line-2); box-shadow: var(--shadow-1); }
.adv-card:hover::before { width: 100%; }
.adv-num {
  font-family: var(--font-num);
  font-size: 60px;
  font-weight: 200;
  color: var(--color-gold);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: 22px;
}
.adv-card h4 { font-size: 23px; color: var(--color-paper); margin-bottom: 14px; font-weight: 600; }
.adv-card .adv-lead { font-size: 15px; color: var(--color-text); line-height: 1.75; margin-bottom: 20px; }
.adv-card ul { display: flex; flex-direction: column; gap: 10px; }
.adv-card ul li { font-size: 13.5px; color: var(--color-text-dim); padding-left: 18px; position: relative; line-height: 1.6; }
.adv-card ul li::before { content: '—'; position: absolute; left: 0; color: var(--color-gold); }

/* ============== 四大产品（深版） ============== */
.products { background: var(--color-paper); color: var(--color-ink); }
.products .section-title { color: var(--color-ink); }
.products .section-sub { color: #5A5347; }

/* 产品区导航 tab */
.space-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 48px 0 0;
}
@media (max-width: 900px) { .space-nav { grid-template-columns: repeat(2, 1fr); } }
.space-nav a {
  background: #FFFFFF;
  border: 1px solid rgba(15, 18, 22, 0.1);
  padding: 24px 20px;
  border-radius: 8px;
  transition: all .3s;
  display: block;
}
.space-nav a:hover { border-color: var(--color-gold); transform: translateY(-3px); box-shadow: 0 12px 28px rgba(15, 18, 22, 0.1); }
.space-nav .sn-no { font-family: var(--font-num); font-size: 12px; color: var(--color-gold); letter-spacing: 0.2em; font-weight: 700; }
.space-nav .sn-name { font-size: 19px; font-weight: 700; color: var(--color-ink); margin-top: 6px; }
.space-nav .sn-slogan { font-size: 12.5px; color: #8A8272; margin-top: 4px; }

/* 单个产品空间 */
.space { margin-top: 110px; }
.space-hero {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.space-hero.reverse { grid-template-columns: 1.1fr 1fr; }
.space-hero.reverse .space-hero-img { order: -1; }
@media (max-width: 1000px) {
  .space-hero, .space-hero.reverse { grid-template-columns: 1fr; gap: 36px; }
  .space-hero.reverse .space-hero-img { order: 0; }
}
.space-no {
  font-family: var(--font-num);
  font-size: 84px;
  font-weight: 100;
  color: rgba(200, 165, 103, 0.4);
  line-height: 0.9;
  letter-spacing: -0.02em;
}
.space-name { font-size: clamp(32px, 4vw, 52px); color: var(--color-ink); font-weight: 700; line-height: 1.15; margin-top: 8px; letter-spacing: -0.01em; }
.space-slogan {
  font-size: 18px;
  color: var(--color-gold);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-top: 12px;
}
.space-manifesto {
  margin-top: 28px;
  padding: 26px 30px;
  background: #FFFFFF;
  border-left: 4px solid var(--color-gold);
  border-radius: 0 8px 8px 0;
}
.space-manifesto .m-title { font-size: 13px; color: #8A8272; letter-spacing: 0.2em; margin-bottom: 10px; }
.space-manifesto p { font-size: 16.5px; color: var(--color-ink); line-height: 1.75; font-weight: 500; }
.space-vs {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.space-vs .vs-box {
  padding: 18px 20px;
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.7;
}
.space-vs .vs-old { background: #EDE8DC; color: #8A8272; }
.space-vs .vs-new { background: var(--color-ink); color: var(--color-paper); }
.space-vs .vs-box b { display: block; font-size: 12px; letter-spacing: 0.15em; margin-bottom: 6px; }
.space-vs .vs-old b { color: #B0574F; }
.space-vs .vs-new b { color: var(--color-gold); }
.space-hero-img {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16/10;
  box-shadow: 0 24px 60px rgba(15, 18, 22, 0.18);
}
.space-hero-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s; }
.space-hero-img:hover img { transform: scale(1.03); }

/* 系统卖点 */
.space-systems { margin-top: 64px; }
.space-systems-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--color-ink);
}
.space-systems-head h3 { font-size: 24px; color: var(--color-ink); font-weight: 700; }
.space-systems-head .sys-count { font-family: var(--font-num); font-size: 14px; color: var(--color-gold); font-weight: 700; letter-spacing: 0.1em; }
.sys-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 28px;
}
@media (max-width: 900px) { .sys-grid { grid-template-columns: 1fr; } }
.sys-card {
  background: #FFFFFF;
  border: 1px solid rgba(15, 18, 22, 0.08);
  border-radius: 10px;
  padding: 30px 28px;
  transition: all .3s;
}
.sys-card:hover { box-shadow: 0 16px 40px rgba(15, 18, 22, 0.1); transform: translateY(-3px); }
.sys-card .sys-head { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; }
.sys-card .sys-no {
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 800;
  color: var(--color-gold);
  letter-spacing: 0.12em;
}
.sys-card h4 { font-size: 19px; color: var(--color-ink); font-weight: 700; }
.sys-card .sys-idea {
  font-size: 13.5px;
  color: var(--color-gold);
  line-height: 1.6;
  font-weight: 600;
  margin-bottom: 16px;
}
.sys-card ul { display: flex; flex-direction: column; gap: 0; }
.sys-card ul li {
  padding: 11px 0;
  border-top: 1px dashed rgba(15, 18, 22, 0.1);
  font-size: 13.5px;
  color: #4A453C;
  line-height: 1.6;
}
.sys-card ul li b { color: var(--color-ink); font-weight: 600; margin-right: 6px; }

/* 设计缘由金句 */
.space-quotes {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .space-quotes { grid-template-columns: 1fr; } }
.quote-card {
  background: var(--color-ink);
  color: var(--color-paper);
  padding: 30px 28px;
  border-radius: 10px;
  position: relative;
}
.quote-card .q-mark {
  font-family: Georgia, serif;
  font-size: 60px;
  color: var(--color-gold);
  opacity: 0.4;
  line-height: 0.5;
  display: block;
  margin-bottom: 14px;
}
.quote-card p.q-text { font-size: 16px; line-height: 1.7; font-weight: 500; }
.quote-card p.q-who { font-size: 12px; color: var(--color-gold); margin-top: 14px; letter-spacing: 0.1em; }

/* 设计原则徽章 */
.space-principles {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.principle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: #FFFFFF;
  border: 1px solid rgba(200, 165, 103, 0.5);
  border-radius: 100px;
  font-size: 13.5px;
  color: var(--color-ink);
  font-weight: 600;
}
.principle::before { content: '◆'; font-size: 8px; color: var(--color-gold); }
.principle span { color: #8A8272; font-weight: 400; font-size: 12.5px; }

/* 场景模式 */
.space-scenes {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
@media (max-width: 900px) { .space-scenes { grid-template-columns: repeat(3, 1fr); } }
.scene-item { position: relative; border-radius: 8px; overflow: hidden; aspect-ratio: 16/10; }
.scene-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.scene-item:hover img { transform: scale(1.06); }
.scene-item .scene-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 24px 14px 10px;
  background: linear-gradient(transparent, rgba(15, 18, 22, 0.85));
  color: var(--color-paper);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.scene-item .scene-label small { display: block; font-weight: 400; font-size: 11px; color: rgba(245, 240, 230, 0.75); margin-top: 2px; }

/* 图集 */
.space-gallery {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.space-gallery img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border-radius: 6px;
  transition: transform .4s, box-shadow .4s;
  cursor: zoom-in;
}
.space-gallery img:hover { transform: scale(1.02); box-shadow: 0 12px 32px rgba(15, 18, 22, 0.2); }
.space-gallery img:first-child { grid-column: span 2; aspect-ratio: 32/10; }
@media (max-width: 800px) {
  .space-gallery { grid-template-columns: repeat(2, 1fr); }
  .space-gallery img:first-child { grid-column: span 2; }
}

/* ============== 工艺 ============== */
.craft { background: var(--color-bg); }
.craft-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; margin-top: 56px; }
@media (max-width: 1000px) { .craft-grid { grid-template-columns: 1fr; } }
.craft-card {
  background: var(--color-bg-2);
  border: 1px solid var(--color-line);
  border-radius: 10px;
  padding: 40px 32px;
}
.craft-card .icon {
  width: 56px; height: 56px;
  background: var(--color-bg);
  border: 1px solid var(--color-line-2);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  margin-bottom: 24px;
}
.craft-card h4 { font-size: 20px; color: var(--color-paper); margin-bottom: 12px; font-weight: 600; }
.craft-card p { font-size: 14px; color: var(--color-text-dim); line-height: 1.8; }
.craft-timeline {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
@media (max-width: 900px) { .craft-timeline { grid-template-columns: repeat(2, 1fr); } }
.craft-day {
  background: var(--color-bg-2);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  padding: 22px 18px;
  position: relative;
}
.craft-day .d {
  font-family: var(--font-num);
  font-size: 15px;
  color: var(--color-gold);
  font-weight: 800;
  letter-spacing: 0.1em;
}
.craft-day .t { font-size: 14.5px; color: var(--color-paper); font-weight: 600; margin-top: 6px; }
.craft-day .s { font-size: 12.5px; color: var(--color-text-dim); margin-top: 4px; line-height: 1.6; }

/* ============== 环保 ============== */
.eco { background: var(--color-bg-2); border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }
.eco-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 56px; }
@media (max-width: 1000px) { .eco-grid { grid-template-columns: repeat(2, 1fr); } }
.eco-item {
  padding: 32px 26px;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: 10px;
}
.eco-item .eco-badge {
  display: inline-block;
  background: rgba(120, 180, 120, 0.12);
  color: #8FC98F;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: 0.15em;
  font-weight: 600;
  margin-bottom: 16px;
}
.eco-item h4 { font-size: 18px; color: var(--color-paper); margin-bottom: 10px; font-weight: 600; }
.eco-item p { font-size: 13.5px; color: var(--color-text-dim); line-height: 1.7; }

/* ============== 流程 ============== */
.process { background: var(--color-bg); }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 56px;
  position: relative;
}
.process-grid::before {
  content: '';
  position: absolute;
  top: 48px; left: 12.5%; right: 12.5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  opacity: 0.3;
}
@media (max-width: 900px) { .process-grid { grid-template-columns: repeat(2, 1fr); } .process-grid::before { display: none; } }
.process-step { text-align: center; }
.process-step .num {
  width: 96px; height: 96px;
  border-radius: 50%;
  background: var(--color-bg-2);
  border: 1px solid var(--color-line-2);
  color: var(--color-gold);
  font-family: var(--font-num);
  font-size: 34px;
  font-weight: 200;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 26px;
  position: relative;
  z-index: 2;
}
.process-step h4 { font-size: 18px; color: var(--color-paper); margin-bottom: 10px; font-weight: 600; }
.process-step p { font-size: 13.5px; color: var(--color-text-dim); line-height: 1.75; }

/* ============== 承诺 ============== */
.promise { background: var(--color-bg-2); border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }
.promise-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; margin-top: 56px; }
@media (max-width: 700px) { .promise-grid { grid-template-columns: 1fr; } }
.promise-item { display: grid; grid-template-columns: 64px 1fr; gap: 22px; align-items: start; }
.promise-num {
  font-family: var(--font-num);
  font-size: 50px;
  font-weight: 200;
  color: var(--color-gold);
  line-height: 1;
  border-right: 1px solid var(--color-line-2);
  padding-right: 20px;
}
.promise-item h4 { font-size: 20px; color: var(--color-paper); margin-bottom: 10px; font-weight: 600; }
.promise-item p { font-size: 14px; color: var(--color-text-dim); line-height: 1.8; }

/* ============== 199卡 ============== */
.card199 { background: var(--color-paper); color: var(--color-ink); overflow: hidden; }
.card199-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
@media (max-width: 1000px) { .card199-inner { grid-template-columns: 1fr; gap: 44px; } }
.card199 .eyebrow { color: var(--color-gold); }
.card199 .section-title { color: var(--color-ink); }
.card199 .section-sub { color: #4A453C; }
.price-box {
  background: var(--color-ink);
  color: var(--color-paper);
  border-radius: 14px;
  padding: 48px 44px;
  position: relative;
  overflow: hidden;
}
.price-box::after {
  content: '199';
  position: absolute;
  right: -20px; bottom: -50px;
  font-family: var(--font-num);
  font-size: 220px;
  font-weight: 800;
  color: rgba(200, 165, 103, 0.08);
  line-height: 1;
}
.price-box .pb-tag {
  display: inline-block;
  background: var(--color-gold);
  color: var(--color-ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  padding: 5px 12px;
  border-radius: 2px;
  margin-bottom: 20px;
}
.price-row { display: flex; align-items: baseline; gap: 14px; margin-bottom: 6px; }
.price-row .p-old { font-size: 20px; color: var(--color-text-dim); text-decoration: line-through; }
.price-row .p-new { font-family: var(--font-num); font-size: 64px; font-weight: 800; color: var(--color-gold); line-height: 1; }
.price-row .p-unit { font-size: 18px; color: var(--color-gold); }
.price-box .p-save { font-size: 14px; color: var(--color-text-dim); margin-bottom: 28px; }
.price-box ul { display: flex; flex-direction: column; gap: 12px; position: relative; z-index: 2; }
.price-box ul li { font-size: 15px; color: var(--color-paper); padding-left: 26px; position: relative; line-height: 1.6; }
.price-box ul li::before { content: '✓'; position: absolute; left: 0; color: var(--color-gold); font-weight: 700; }
.price-box ul li b { color: var(--color-gold); }
.price-box .pb-note {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(245, 240, 230, 0.15);
  font-size: 13px;
  color: var(--color-text-dim);
  line-height: 1.7;
  position: relative;
  z-index: 2;
}

/* ============== FAQ ============== */
.faq { background: var(--color-bg); }
.faq-list { margin-top: 48px; display: flex; flex-direction: column; gap: 14px; max-width: 860px; }
.faq-item {
  background: var(--color-bg-2);
  border: 1px solid var(--color-line);
  border-radius: 10px;
  overflow: hidden;
}
.faq-item summary {
  padding: 22px 28px;
  font-size: 16.5px;
  color: var(--color-paper);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-family: var(--font-num);
  font-size: 22px;
  color: var(--color-gold);
  transition: transform .3s;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 28px 24px; font-size: 14.5px; color: var(--color-text-dim); line-height: 1.85; }

/* ============== 联系 ============== */
.contact { background: var(--color-bg); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }
.contact-info { margin-top: 32px; display: flex; flex-direction: column; gap: 0; }
.contact-row {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}
.contact-row .ico {
  width: 42px; height: 42px;
  background: var(--color-bg-2);
  border: 1px solid var(--color-line-2);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-gold);
  font-size: 17px;
  flex-shrink: 0;
}
.contact-row .label { font-size: 12px; color: var(--color-text-dim); letter-spacing: 0.15em; margin-bottom: 4px; }
.contact-row .val { font-size: 16px; color: var(--color-paper); }
.contact-form {
  background: var(--color-bg-2);
  border: 1px solid var(--color-line);
  padding: 44px;
  border-radius: 12px;
}
.contact-form h3 { font-size: 24px; color: var(--color-paper); margin-bottom: 8px; }
.contact-form > p { font-size: 13px; color: var(--color-text-dim); margin-bottom: 26px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 12px; color: var(--color-text-dim); letter-spacing: 0.1em; margin-bottom: 6px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  color: var(--color-text);
  padding: 13px 14px;
  font-size: 14px;
  font-family: inherit;
  border-radius: 6px;
  transition: border-color .25s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--color-gold); }
.form-row textarea { resize: vertical; min-height: 90px; }
.form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-form .btn-gold { width: 100%; justify-content: center; margin-top: 10px; }
.form-success {
  background: rgba(200, 165, 103, 0.1);
  border: 1px solid var(--color-line-2);
  color: var(--color-gold);
  padding: 16px;
  text-align: center;
  border-radius: 6px;
  font-size: 14px;
  margin-top: 16px;
  display: none;
}
.form-success.show { display: block; }

/* ============== Footer ============== */
.footer { background: var(--color-bg-2); border-top: 1px solid var(--color-line); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-brand p { font-size: 13px; color: var(--color-text-dim); margin-top: 16px; line-height: 1.8; max-width: 320px; }
.footer-col h5 { font-size: 13px; color: var(--color-paper); margin-bottom: 18px; letter-spacing: 0.15em; font-weight: 500; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 13px; color: var(--color-text-dim); }
.footer-col a:hover { color: var(--color-gold); }
.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--color-line);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  font-size: 12px; color: var(--color-text-dim); letter-spacing: 0.05em;
}

/* ============== 图片灯箱 ============== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 11, 14, 0.94);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  cursor: zoom-out;
}
.lightbox.show { display: flex; }
.lightbox img {
  max-width: 92vw;
  max-height: 88vh;
  border-radius: 8px;
  box-shadow: var(--shadow-2);
}

/* ============== 懒加载 ============== */
img[data-src] { opacity: 0; transition: opacity .5s; background: var(--color-bg-3); }
img[data-src].loaded { opacity: 1; }

@media (max-width: 900px) {
  .container { padding: 0 20px; }
  section { padding: 72px 0; }
  .section-head { margin-bottom: 36px; }
}