/* ============================================================
   VICVIK威克 官网 · 全局样式
   设计语言：Teutonic Warmth 德系温度美学
   主色：#0e0e0c · 暖金：#c9a96e · 背景：#fff
   字体：Outfit（标题）+ Noto Serif SC（中文正文）
============================================================ */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black:      #0e0e0c;
  --gold:       #c9a96e;
  --gold-dark:  #8b6914;
  --gold-light: #e8d5b0;
  --white:      #ffffff;
  --bg-warm:    #faf8f5;
  --bg-dark:    #111110;
  --text-body:  #3a3834;
  --text-mute:  #7a7570;
  --border:     rgba(201,169,110,0.2);
  --radius:     6px;
  --radius-lg:  12px;
  --shadow-sm:  0 2px 12px rgba(14,14,12,0.06);
  --shadow-md:  0 8px 32px rgba(14,14,12,0.10);
  --shadow-lg:  0 20px 60px rgba(14,14,12,0.14);
  --trans:      0.35s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Outfit', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.7;
  overflow-x: hidden;
}

.noto { font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif; }

img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 40px;
}

.gold { color: var(--gold); }
.section { padding: 72px 0; }

/* ── 图片占位符 ── */
.img-placeholder {
  position: relative;
  background: linear-gradient(135deg, #f5f0e8 0%, #ede4d4 50%, #e8d5b0 100%);
  border: 1.5px dashed var(--gold);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(45deg, transparent, transparent 18px, rgba(201,169,110,0.07) 18px, rgba(201,169,110,0.07) 19px);
}
.placeholder-label {
  position: absolute;
  bottom: 12px;
  right: 14px;
  font-size: 11px;
  font-family: 'Outfit', sans-serif;
  color: var(--gold-dark);
  background: rgba(255,255,255,0.85);
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  font-weight: 500;
  backdrop-filter: blur(4px);
  z-index: 2;
}


/* ============================================================
   NAVIGATION — 智能双模式
   初始态：深色导航（覆盖 Hero 黑底）
   滚动后：白底玻璃（覆盖白底内容区）
============================================================ */
.nav-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  box-shadow: 0 1px 0 var(--border);
  transition: box-shadow var(--trans);
}
/* 文字：始终黑色 */
.nav-header .logo-text { color: var(--black); }
.nav-header .logo-vv {
  background: var(--black);
  border: none;
}
.nav-header .nav-links a { color: var(--black); }
.nav-header .hamburger span { background: var(--black); }
/* CTA：黑底白字 */
.nav-header .nav-cta {
  background: var(--black);
  color: var(--white) !important;
  padding: 9px 22px;
  border-radius: var(--radius);
  font-size: 13px !important;
  letter-spacing: 1px;
  transition: background var(--trans) !important;
}
.nav-header .nav-cta:hover { background: var(--gold) !important; color: var(--white) !important; }

/* 图片 Logo */
.nav-logo { display: flex; align-items: center; text-decoration: none; }
.logo-img {
  height: 55px;
  width: auto;
  display: block;
  object-fit: contain;
}
/* Footer 区域 logo 略大，白色滤镜适配深色背景 */
.logo-img-footer {
  height: 36px;
  filter: brightness(0) invert(1);
}

/* 导航内部布局 */
.nav-inner {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 40px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: rgba(255,255,255,0.85);
  transition: color var(--trans);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--gold);
  transition: width var(--trans);
}
.nav-links a:hover { color: var(--gold); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--gold); }
.nav-links a.active::after { width: 100%; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--black);
  border-radius: 2px;
  transition: var(--trans);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(14,14,12,0.97);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans);
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu nav { display: flex; flex-direction: column; align-items: center; gap: 28px; }
.mobile-menu a {
  font-size: 24px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 2px;
  transition: color var(--trans);
}
.mobile-menu a:hover { color: var(--gold); }
.mobile-close {
  position: absolute;
  top: 24px; right: 28px;
  font-size: 24px;
  color: var(--gold);
}


/* ============================================================
   HERO
============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  background: #111110;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(14,14,12,0.82) 0%, rgba(14,14,12,0.6) 36%, rgba(14,14,12,0.28) 64%, rgba(14,14,12,0.52) 100%),
    linear-gradient(180deg, rgba(14,14,12,0.3) 0%, rgba(14,14,12,0.12) 35%, rgba(14,14,12,0.48) 100%);
  pointer-events: none;
  z-index: 1;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 82% 30%, rgba(201,169,110,0.16) 0%, transparent 26%);
  pointer-events: none;
  z-index: 1;
}
.hero-media-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-left {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding: 80px 60px 80px 80px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--gold);
  border: 1px solid rgba(201,169,110,0.7);
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
  padding: 6px 16px;
  border-radius: 20px;
  width: fit-content;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(34px, 4.6vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--white);
}
.hero-title-sub {
  display: inline-block;
  margin-top: 10px;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 500;
  letter-spacing: 1.2px;
  line-height: 1.45;
}
.hero-sub {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(255,255,255,0.76);
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--black);
  color: var(--white);
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: background var(--trans), transform var(--trans), box-shadow var(--trans);
}
.btn-primary:hover {
  background: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,169,110,0.3);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1.5px solid rgba(255,255,255,0.36);
  color: var(--white);
  background: rgba(255,255,255,0.04);
  padding: 13px 28px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  transition: border-color var(--trans), color var(--trans), transform var(--trans);
}
.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1.5px solid var(--gold);
  color: var(--gold);
  padding: 4px 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: gap var(--trans), opacity var(--trans);
}
.btn-outline:hover { gap: 12px; opacity: 0.8; }

/* Stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 24px;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.16);
}
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-top { display: flex; align-items: baseline; gap: 0; }
.stat-badge {
  font-size: 28px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -0.5px;
}
.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  letter-spacing: -1px;
}
.stat-suffix {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  vertical-align: top;
  line-height: 1.4;
}
.stat-label {
  font-size: 12px;
  color: rgba(255,255,255,0.72);
  letter-spacing: 0.5px;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.hero-video-play {
  position: absolute;
  right: 28px;
  bottom: 28px;
  z-index: 3;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(14,14,12,0.76);
  border: 1px solid rgba(255,255,255,0.42);
  box-shadow: 0 14px 36px rgba(0,0,0,0.26);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--trans), background var(--trans), border-color var(--trans);
}
.hero-video-play:hover {
  transform: translateY(-2px);
  background: var(--gold);
  border-color: var(--gold);
}
.hero-video-play[hidden] {
  display: none;
}
.hero-video-play-icon {
  width: 0;
  height: 0;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  border-left: 14px solid var(--white);
  margin-left: 4px;
}
.hero-video-modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 28px;
}
.hero-video-modal.open {
  display: flex;
}
.hero-video-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.hero-video-modal-panel {
  position: relative;
  z-index: 1;
  width: min(1080px, 92vw);
  background: #050505;
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: 0 30px 90px rgba(0,0,0,0.5);
}
.hero-video-player {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  background: #000;
}
.hero-video-modal-close {
  position: absolute;
  top: -46px;
  right: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: var(--white);
  font-size: 28px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--trans), color var(--trans);
}
.hero-video-modal-close:hover {
  background: var(--gold);
  color: var(--white);
}

/* 浮动卡片 */
.hero-float-card {
  position: absolute;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--gold-light);
  border-radius: var(--radius);
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  animation: floatY 4s ease-in-out infinite;
}
.fc-icon { color: var(--gold); font-size: 16px; }
.fc1 { top: 12%; left: -18%; animation-delay: 0s; }
.fc2 { bottom: 18%; right: -14%; animation-delay: 2s; }
@keyframes floatY {
  0%,100% { transform: translateY(0); }
  50%  { transform: translateY(-10px); }
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.68);
  z-index: 2;
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, transparent, var(--gold));
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { height: 0; opacity: 0; }
  50% { height: 48px; opacity: 1; }
  100% { height: 0; opacity: 0; }
}


/* ============================================================
   TICKER
============================================================ */
.ticker-section {
  background: var(--black);
  padding: 20px 0;
  overflow: hidden;
  position: relative;
}
.ticker-track {
  overflow: hidden;
  width: 100%;
}
.ticker-inner {
  display: flex;
  gap: 0;
  width: max-content;
  animation: tickerScroll 40s linear infinite;
  white-space: nowrap;
}
.ticker-inner span {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--gold);
  padding: 0 28px;
  text-transform: uppercase;
  white-space: nowrap;
}
.ticker-dot {
  color: rgba(201,169,110,0.4) !important;
  padding: 0 4px !important;
  font-size: 8px !important;
}
@keyframes tickerScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.ticker-inner:hover { animation-play-state: paused; }


/* ============================================================
   SECTION COMMON
============================================================ */
.section-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: var(--black);
  margin-bottom: 14px;
}
.brand-story .section-title {
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.25;
}
.section-title.centered { text-align: center; }
.section-sub {
  font-size: 15px;
  color: var(--text-body);
  max-width: 560px;
  margin: 0 auto 48px;
  text-align: center;
  line-height: 1.8;
}


/* ============================================================
   BRAND STORY
============================================================ */
.brand-story { background: var(--white); }
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 16px;
}
.story-text { display: flex; flex-direction: column; gap: 24px; }
.story-desc {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.9;
}
.story-desc strong { color: var(--black); font-weight: 600; }
.story-mission { display: flex; flex-direction: column; gap: 16px; padding: 24px; background: var(--bg-warm); border-radius: var(--radius-lg); border-left: 3px solid var(--gold); }
.mission-item { display: flex; gap: 14px; align-items: flex-start; }
.mission-icon { color: var(--gold); font-size: 18px; margin-top: 2px; flex-shrink: 0; }
.mission-item strong { display: block; font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.mission-item p { font-size: 13px; color: var(--text-body); line-height: 1.7; margin: 0; }

.story-img {
  width: 100%;
  aspect-ratio: 4/3;
  margin-bottom: 28px;
  border-radius: var(--radius-lg);
}
.pillars-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.pillar-card {
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
  cursor: default;
}
.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--gold);
}
.pillar-icon {
  font-size: 22px;
  color: var(--gold);
  margin-bottom: 12px;
}
.pillar-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.pillar-card p { font-size: 13px; color: var(--text-mute); line-height: 1.7; }


/* ============================================================
   PRODUCTS
============================================================ */
.products-section { background: var(--bg-warm); }

/* 基材卡片 */
.substrate-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 64px;
}
.substrate-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--trans), box-shadow var(--trans);
}
.substrate-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.substrate-img {
  width: 100%;
  aspect-ratio: 16/9;
}
.substrate-info { padding: 28px 28px 32px; }
.substrate-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--gold-dark);
  background: rgba(201,169,110,0.12);
  border: 1px solid rgba(201,169,110,0.3);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.substrate-info h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.substrate-info p { font-size: 14px; color: var(--text-body); line-height: 1.8; margin-bottom: 16px; }
.substrate-info strong { color: var(--black); }
.substrate-specs { display: flex; flex-direction: column; gap: 6px; }
.substrate-specs li { font-size: 13px; color: var(--text-mute); }

/* 标签切换 */
.product-tabs { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }
.tab-nav {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-warm);
}
.tab-btn {
  flex: 1;
  padding: 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-mute);
  border-bottom: 2.5px solid transparent;
  transition: color var(--trans), border-color var(--trans), background var(--trans);
  letter-spacing: 0.5px;
}
.tab-btn.active {
  color: var(--black);
  border-bottom-color: var(--gold);
  background: var(--white);
}
.tab-btn:hover:not(.active) { color: var(--black); background: rgba(255,255,255,0.6); }
.tab-panel { display: none; padding: 40px; }
.tab-panel.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity:0; transform: translateY(8px); } to { opacity:1; transform: translateY(0); } }

/* 色系网格 */
.color-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.color-card { border-radius: var(--radius); overflow: hidden; cursor: pointer; transition: transform var(--trans), box-shadow var(--trans); }
.color-img { width: 100%; aspect-ratio: 1; }
.color-info { display: flex; align-items: center; gap: 8px; padding: 10px 8px; background: var(--bg-warm); font-size: 12px; font-weight: 500; }
.color-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }

/* 触感网格 */
.touch-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.touch-card { background: var(--bg-warm); border-radius: var(--radius-lg); overflow: hidden; cursor: pointer; transition: transform var(--trans), box-shadow var(--trans); }
.touch-img { width: 100%; aspect-ratio: 4/3; }
.touch-card h4 { font-size: 16px; font-weight: 700; padding: 16px 16px 6px; }
.touch-card p { font-size: 13px; color: var(--text-mute); padding: 0 16px 20px; line-height: 1.7; }

/* 风格网格 */
.style-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: center;
}
.style-tag {
  padding: 10px 22px;
  border: 1.5px solid var(--border);
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  cursor: pointer;
  transition: all var(--trans);
}
.style-tag:hover {
  background: var(--black);
  color: var(--gold);
  border-color: var(--black);
  transform: translateY(-2px);
}
.style-banner {
  width: 100%;
  aspect-ratio: 21/6;
  border-radius: var(--radius-lg);
  margin-top: 8px;
}

/* 3D 悬停 */
.material-card {
  transform-style: preserve-3d;
  perspective: 800px;
  transition: transform 0.4s cubic-bezier(0.23,1,0.32,1), box-shadow 0.4s ease;
}
.material-card:hover {
  box-shadow: var(--shadow-lg);
}


/* ============================================================
   ADVANTAGE
============================================================ */
.advantage-section { background: var(--white); }
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 24px;
  margin-bottom: 56px;
  margin-top: 40px;
}
.adv-card {
  padding: 32px 24px;
  background: var(--bg-warm);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
}
.adv-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(201,169,110,0.06), transparent);
  opacity: 0;
  transition: opacity var(--trans);
}
.adv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--gold); }
.adv-card:hover::before { opacity: 1; }
.adv-num {
  font-size: 48px;
  font-weight: 800;
  color: rgba(201,169,110,0.15);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -2px;
}
.adv-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 12px; }
.adv-card p { font-size: 13.5px; color: var(--text-body); line-height: 1.8; }
.adv-card p strong { color: var(--black); font-weight: 700; }

/* 认证卡片 */
.cert-row {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 20px;
  margin-bottom: 56px;
}
.cert-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px 16px;
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform var(--trans), box-shadow var(--trans);
  cursor: default;
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.cert-img {
  width: 80px; height: 80px;
  border-radius: var(--radius);
}
.cert-card span { font-size: 13px; font-weight: 600; color: var(--text-body); }

/* 品牌语录 */
.brand-quote {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: 48px 40px;
  background: var(--black);
  border-radius: var(--radius-lg);
  position: relative;
}
.quote-mark {
  position: absolute;
  top: -20px; left: 40px;
  font-size: 100px;
  line-height: 1;
  color: var(--gold);
  opacity: 0.25;
  font-family: Georgia, serif;
}
.brand-quote p {
  font-size: 18px;
  line-height: 1.9;
  color: var(--white);
  font-weight: 400;
  position: relative;
  z-index: 1;
  margin-bottom: 16px;
}
.brand-quote cite {
  font-size: 12px;
  font-style: normal;
  letter-spacing: 2px;
  color: var(--gold);
  opacity: 0.8;
}


/* ============================================================
   PROCESS
============================================================ */
.process-section {
  background: #faf8f5;
}
.process-banner {
  width: 100%;
  aspect-ratio: 21/7;
  border-radius: var(--radius-lg);
  margin-bottom: 64px;
  overflow: hidden;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(5,1fr);
  gap: 0;
  position: relative;
}
.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 16px;
  position: relative;
}
.step-circle {
  width: 60px; height: 60px;
  background: var(--black);
  color: var(--gold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 800;
  letter-spacing: 0.5px;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  box-shadow: 0 0 0 4px var(--bg-warm), 0 0 0 6px var(--gold-light);
  transition: background var(--trans), box-shadow var(--trans);
}
.process-step:hover .step-circle {
  background: var(--gold);
  color: var(--black);
  box-shadow: 0 0 0 4px var(--bg-warm), 0 0 0 6px var(--gold), 0 8px 24px rgba(201,169,110,0.3);
}
.step-connector {
  position: absolute;
  top: 30px;
  left: calc(50% + 30px);
  width: calc(100% - 60px);
  height: 1.5px;
  background: linear-gradient(to right, var(--gold-light), var(--gold-light));
  z-index: 0;
}
.step-connector.last { display: none; }
.process-step h4 { font-size: 15px; font-weight: 700; margin-bottom: 10px; }
.process-step p { font-size: 13px; color: var(--text-mute); line-height: 1.7; }


/* ============================================================
   TESTIMONIALS
============================================================ */
.testimonials-section { background: var(--white); overflow: hidden; }
.testimonial-carousel-wrapper {
  overflow: hidden;
  margin: 40px 0 32px;
  cursor: grab;
  user-select: none;
}
.testimonial-carousel-wrapper:active { cursor: grabbing; }
.testimonial-track {
  display: flex;
  gap: 24px;
  padding: 0 calc((100vw - 1260px)/2 + 40px);
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
  will-change: transform;
}
.testimonial-card {
  flex: 0 0 380px;
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans);
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.testi-img {
  width: 100%;
  aspect-ratio: 16/7;
}
.testi-content { padding: 24px 24px 28px; }
.testi-text {
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-body);
  margin-bottom: 20px;
  font-style: italic;
}
.testi-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}
.testi-author strong { font-size: 15px; font-weight: 700; }
.testi-author span { font-size: 12px; color: var(--text-mute); }
.testi-stars { font-size: 14px; color: var(--gold); letter-spacing: 2px; }

/* 轮播控制 */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding-bottom: 8px;
}
.carousel-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  color: var(--text-mute);
  transition: all var(--trans);
}
.carousel-btn:hover { border-color: var(--gold); color: var(--gold); background: rgba(201,169,110,0.06); }
.carousel-dots { display: flex; gap: 8px; }
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: background var(--trans), transform var(--trans);
  border: none;
}
.dot.active { background: var(--gold); transform: scale(1.3); }


/* ============================================================
   SHOWROOM / HORIZONTAL FILMSTRIP
============================================================ */
.showroom-section { background: #ffffff; }
.scene-film {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 26px;
}
.scene-film-stage {
  position: relative;
  min-height: 580px;
  border-radius: 20px;
  overflow: hidden;
  background: #e9e2d5;
  box-shadow: 0 24px 56px rgba(14,14,12,0.12);
  cursor: grab;
  user-select: none;
}
.scene-film-stage.is-dragging { cursor: grabbing; }
.scene-film-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 0;
}
.scene-film-image img {
  transition: transform 1s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.4s ease;
}
.scene-film-stage:hover .scene-film-image img {
  transform: scale(1.025);
}
.scene-film-gradient {
  position: absolute;
  inset: 0;
  z-index: 1;
  /* background: linear-gradient(180deg, rgba(14, 14, 12, 0.04) 0%, rgba(14, 14, 12, 0.12) 46%, rgba(0, 0, 0, 0) 100%), linear-gradient(90deg, rgba(14, 14, 12, 0.24) 0%, rgba(14, 14, 12, 0.02) 48%, rgba(201,169,110,0.3) 100%); */
}
.scene-film-copy {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 26px;
  z-index: 3;
  max-width: 460px;
}
.scene-film-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.74);
}
.scene-film-kicker::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--gold);
}
.scene-film-title {
  margin-top: 10px;
  font-size: clamp(24px, 2.4vw, 36px);
  line-height: 1.12;
  letter-spacing: -0.6px;
  color: var(--white);
  margin-bottom: 10px;
}
.scene-film-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.84);
  margin-bottom: 14px;
  max-width: 420px;
}
.scene-film-sub {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--gold-light);
}
.scene-film-sub::before {
  content: "";
  width: 26px;
  height: 1px;
  background: rgba(201,169,110,0.8);
}
.scene-film-toolbar {
  position: absolute;
  right: 24px;
  bottom: 24px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
}
.scene-film-drag-tip {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  margin-right: 6px;
  border-radius: 999px;
  background: rgba(14,14,12,0.34);
  border: 1px solid rgba(255,255,255,0.16);
  color: rgba(255,255,255,0.78);
  font-size: 11px;
  letter-spacing: 0.4px;
  backdrop-filter: blur(12px);
}
.scene-arrow {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--white);
  font-size: 24px;
  line-height: 1;
  backdrop-filter: blur(14px);
  transition: transform var(--trans), background var(--trans), border-color var(--trans);
}
.scene-arrow:hover {
  transform: translateY(-2px);
  background: rgba(201,169,110,0.3);
  border-color: rgba(201,169,110,0.45);
}
.scene-film-counter {
  min-width: 46px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--white);
}


/* ============================================================
   CTA
============================================================ */
.cta-section {
  background: var(--white);
}
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.cta-left { display: flex; flex-direction: column; gap: 24px; }
.cta-desc { font-size: 15px; color: var(--text-body); line-height: 1.85; }
.cta-info { display: flex; flex-direction: column; gap: 12px; }
.cta-info-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-body);
}
.cta-icon { color: var(--gold); font-size: 18px; flex-shrink: 0; }
.cta-img {
  width: 100%;
  aspect-ratio: 3/1;
  border-radius: var(--radius-lg);
}

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--black);
  letter-spacing: 0.3px;
}
.required { color: var(--gold); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid #e8e2d9;
  border-radius: var(--radius);
  font-size: 14px;
  font-family: 'Noto Serif SC', serif;
  color: var(--black);
  background: var(--bg-warm);
  transition: border-color var(--trans), box-shadow var(--trans);
  outline: none;
  resize: vertical;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #b0a898; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,169,110,0.12);
  background: var(--white);
}
.form-group input.error,
.form-group select.error { border-color: #e06060; }
.form-error { font-size: 12px; color: #e06060; min-height: 16px; }
.form-submit {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  position: relative;
}
.submit-loading, .submit-done { display: none; }
.form-submit.loading .submit-text { display: none; }
.form-submit.loading .submit-loading { display: block; }
.form-submit.done .submit-text,
.form-submit.done .submit-loading { display: none; }
.form-submit.done .submit-done { display: block; }
.form-submit.done { background: #4caf78; pointer-events: none; }


/* ============================================================
   最新资讯板块
============================================================ */
.news-section {
  padding: 56px 0;
  background: #faf8f5;
}
.news-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
}
.news-section-header .section-eyebrow {
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 6px;
}
.news-section-header .section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.5px;
}
.news-more-link {
  font-size: 13px;
  color: var(--gold);
  font-weight: 500;
  letter-spacing: 0.5px;
  white-space: nowrap;
  transition: gap 0.2s;
}
.news-more-link:hover { gap: 8px; }
.news-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.news-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  border-radius: 6px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(14,14,12,0.10);
}
.news-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--placeholder);
  overflow: hidden;
  position: relative;
}
.news-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.news-card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--gold);
  text-transform: uppercase;
  background: rgba(201,169,110,0.10);
  padding: 3px 10px;
  border-radius: 2px;
  width: fit-content;
}
.news-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--black);
  line-height: 1.5;
  letter-spacing: -0.3px;
}
.news-card-desc {
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.7;
  flex: 1;
}
.news-card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(14,14,12,0.40);
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* 响应式 */
@media (max-width: 900px) {
  .news-card-grid { grid-template-columns: 1fr; gap: 16px; }
  .news-section { padding: 60px 24px; }
  .news-section-header { flex-direction: column; align-items: flex-start; gap: 12px; }
}
@media (max-width: 640px) {
  .news-card-grid { grid-template-columns: 1fr; }
  .news-section { padding: 48px 16px; }
}


/* ============================================================
   START WITH VICVIK — Footer 前呼起栏
============================================================ */
.sw-section {
  position: relative; z-index: 1;
  background: var(--black);
  padding: 56px 40px;
  overflow: hidden;
}
.sw-inner {
  position: relative; z-index: 2;
  max-width: 1260px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.sw-bg-text {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(80px, 14vw, 180px);
  font-weight: 900;
  color: rgba(201,169,110,0.04);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  z-index: 1;
  line-height: 1;
}
.sw-left { flex: 1; }
.sw-right { flex-shrink: 0; }
.sw-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}
.sw-headline {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}
.sw-body {
  font-size: 14px;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
}
.sw-br { display: none; }
.sw-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: var(--gold);
  color: var(--black);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all var(--trans);
  text-decoration: none;
  white-space: nowrap;
}
.sw-cta:hover {
  background: #e8c97a;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,169,110,0.35);
}

/* ============================================================
   FOOTER
============================================================ */
.footer {
  background: var(--black);
  color: rgba(255,255,255,0.75);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo .logo-vv { background: var(--gold); color: var(--black); }
.footer-logo .logo-text { color: var(--white); }
.footer-tagline {
  font-size: 13.5px;
  line-height: 2;
  color: rgba(255,255,255,0.5);
  margin: 20px 0 24px;
}
.footer-social { display: flex; gap: 12px; flex-wrap: wrap; }
.social-link {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.5);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 6px 14px;
  border-radius: 20px;
  transition: all var(--trans);
}
.social-link:hover { color: var(--gold); border-color: var(--gold); }
.footer-heading {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a {
  font-size: 13.5px;
  color: rgba(255,255,255,0.5);
  transition: color var(--trans);
}
.footer-links a:hover { color: var(--gold); }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact li { font-size: 13.5px; color: rgba(255,255,255,0.5); display: flex; gap: 10px; }
.fc-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--gold);
  opacity: 0.7;
  flex-shrink: 0;
  padding-top: 2px;
}
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}
.footer-bottom a { transition: color var(--trans); }
.footer-bottom a:hover { color: var(--gold); }
.footer-sep { opacity: 0.3; }

/* Back to top */
.back-top {
  position: fixed;
  bottom: 32px; right: 32px;
  z-index: 100;
  width: 44px; height: 44px;
  background: var(--black);
  color: var(--gold);
  border-radius: 50%;
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--trans), transform var(--trans);
}
.back-top.visible { opacity: 1; pointer-events: all; transform: translateY(0); }
.back-top:hover { background: var(--gold); color: var(--black); }


/* ============================================================
   SCROLL REVEAL
============================================================ */
.reveal-up, .reveal-left, .reveal-right {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.4,0,0.2,1);
  transition-delay: var(--delay, 0s);
}
.reveal-up { transform: translateY(36px); }
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed { opacity: 1; transform: translate(0); }


/* ============================================================
   RESPONSIVE — 1024px
============================================================ */
@media (max-width: 1024px) {
  .container { padding: 0 28px; }
  .hero { min-height: auto; }
  .hero-left {
    padding: 120px 40px 80px;
    align-items: center;
    text-align: center;
  }
  .hero-badge { margin: 0 auto; }
  .hero-stats { grid-template-columns: repeat(4,1fr); }
  .hero-actions { justify-content: center; }
  .hero-sub { text-align: center; }
  .scroll-hint { display: none; }

  .story-grid { grid-template-columns: 1fr; gap: 48px; }
  .substrate-grid { grid-template-columns: 1fr; }
  .advantage-grid { grid-template-columns: repeat(2,1fr); }
  .cert-row { grid-template-columns: repeat(4,1fr); }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .step-connector { display: none; }
  .scene-film-stage {
    min-height: 500px;
  }
  .scene-film-copy {
    left: 22px;
    right: 22px;
    bottom: 22px;
    max-width: 400px;
  }
  .bento-wide { grid-column: span 2; }
  .bento-tall { grid-row: span 1; }
  .cta-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .color-grid { grid-template-columns: repeat(3,1fr); }
  .touch-grid { grid-template-columns: repeat(2,1fr); }
  .testimonial-track { padding: 0 28px; }
}


/* ============================================================
   RESPONSIVE — 768px
============================================================ */
@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .container { padding: 0 20px; }
  .hero {
    min-height: auto;
    margin-top: 72px;
    padding-top: 0;
  }
  .hero-media-bg { top: 0; }
  .hero-video-play {
    right: 18px;
    bottom: 18px;
    width: 46px;
    height: 46px;
  }
  .hero-video-play-icon {
    border-top-width: 8px;
    border-bottom-width: 8px;
    border-left-width: 12px;
  }
  .hero-video-modal {
    padding: 14px;
  }
  .hero-video-modal-panel {
    width: 100%;
  }
  .hero-video-modal-close {
    top: -42px;
    right: 0;
  }
  .hero-left { padding: 100px 24px 40px; text-align: center; }
  .hero-float-card {
    max-width: calc(100vw - 64px);
    white-space: normal;
  }
  .hero-img-placeholder { min-height: 280px; }
  .hero-title { font-size: 32px; }
  .hero-title-sub { font-size: 18px; letter-spacing: 0.8px; }
  .hero-stats { grid-template-columns: repeat(2,1fr); gap: 16px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
  .pillars-grid { grid-template-columns: 1fr; }
  .advantage-grid { grid-template-columns: 1fr; }
  .cert-row { grid-template-columns: repeat(2,1fr); }
  .process-steps { grid-template-columns: 1fr; gap: 24px; }
  .scene-film-stage {
    min-height: 380px;
    border-radius: 22px;
  }
  .scene-film-copy {
    left: 16px;
    right: 16px;
    bottom: 16px;
    max-width: none;
  }
  .scene-film-kicker {
    margin-bottom: 12px;
    font-size: 10px;
    letter-spacing: 2px;
  }
  .scene-film-title {
    font-size: 18px;
    margin-top: 8px;
    margin-bottom: 8px;
  }
  .scene-film-desc {
    font-size: 12px;
    line-height: 1.7;
    margin-bottom: 10px;
  }
  .scene-film-sub {
    font-size: 11px;
  }
  .scene-film-toolbar {
    right: 16px;
    bottom: 16px;
    gap: 6px;
  }
  .scene-film-drag-tip {
    display: none;
  }
  .scene-arrow {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-social { flex-wrap: wrap; }
  .ticker-inner span { font-size: 12px; padding: 0 18px; }
  .color-grid { grid-template-columns: repeat(2,1fr); }
  .touch-grid { grid-template-columns: 1fr 1fr; }
  .story-grid { gap: 32px; }
  .brand-quote { padding: 36px 24px; }
  .brand-quote p { font-size: 15px; }
  .testimonial-card { flex: 0 0 320px; }
  .section-title { font-size: clamp(22px, 5.4vw, 32px); }
  .brand-story .section-title { font-size: clamp(20px, 5vw, 28px); }
  .tab-btn { font-size: 13px; padding: 14px 12px; }
}


/* ============================================================
   RESPONSIVE — 480px
============================================================ */
@media (max-width: 480px) {
  .section { padding: 56px 0; }
  .container { padding: 0 16px; }
  .hero-left { padding: 88px 20px 32px; }
  .hero-float-card { display: none; }
  .hero-title { font-size: 26px; letter-spacing: -0.4px; }
  .hero-title-sub { font-size: 14px; letter-spacing: 0.4px; margin-top: 8px; }
  .hero-badge { font-size: 10px; letter-spacing: 2px; }
  .hero-stats { grid-template-columns: repeat(2,1fr); gap: 12px; }
  .stat-num { font-size: 26px; }
  .substrate-info { padding: 20px; }
  .substrate-info h3 { font-size: 17px; }
  .cert-row { grid-template-columns: repeat(2,1fr); gap: 12px; }
  .cert-img { width: 60px; height: 60px; }
  .tab-panel { padding: 24px 16px; }
  .color-grid { grid-template-columns: repeat(2,1fr); gap: 10px; }
  .touch-grid { grid-template-columns: 1fr; }
  .footer-grid { gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 6px; align-items: flex-start; }
  .sw-section { padding: 48px 24px; }
  .sw-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .sw-right { width: 100%; }
  .sw-cta { width: 100%; justify-content: center; }
  .sw-br { display: block; }
  .back-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
  .testimonial-card { flex: 0 0 288px; }
  .process-steps { gap: 20px; }
  .brand-quote { padding: 28px 20px; }
  .logo-vv { width: 34px; height: 34px; font-size: 12px; }
  .logo-text { font-size: 15px; }
}