/* =========================================================
   宏海木业 · main.css
   视觉系统：Aesop × overland 混合
   配色基准：brand-spec.md §3
   字体基准：brand-spec.md §4
   ========================================================= */

/* =========================================================
   1. CSS Variables (Brand Tokens)
   ========================================================= */
:root {
  /* 品牌色 */
  --brand-green-900: #2A3A1B;
  --brand-green-700: #5C7A3A;
  --brand-green-500: #8AA564;
  --brand-green-300: #C2D1A5;
  --brand-gold-700:  #8A6A2A;
  --brand-gold-500:  #C8A04A;
  --brand-gold-300:  #E5CC8A;

  /* 中性色 */
  --paper: #F4EFE6;
  --paper-warm: #EDE5D5;
  --ink: #1A1A1A;
  --ink-soft: #4A4A4A;
  --gray-500: #8B8378;
  --gray-300: #D9D2C5;
  --gray-100: #F9F5EC;

  /* 间距（8pt 网格） */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 128px;

  /* 字号梯度（clamp 响应式） */
  --fs-hero:  clamp(48px, 8vw, 120px);
  --fs-h1:    clamp(36px, 5vw, 64px);
  --fs-h2:    clamp(28px, 3.5vw, 44px);
  --fs-h3:    24px;
  --fs-body:  17px;
  --fs-caption: 14px;
  --fs-small:  12px;

  /* 字体 */
  --font-display: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-body:    "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-number:  "Cormorant Garamond", "Garamond", "Times New Roman", serif;

  /* 容器 */
  --container-max: 1280px;
  --container-pad: clamp(24px, 5vw, 80px);

  /* 过渡 */
  --t-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-base: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow: 800ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--brand-green-700);
  text-decoration: none;
  transition: color var(--t-fast);
}

a:hover {
  color: var(--brand-gold-700);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* =========================================================
   3. Typography
   ========================================================= */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 500; }
h4 { font-size: 20px; font-weight: 500; }

p { line-height: 1.75; }

.caption {
  font-size: var(--fs-caption);
  color: var(--gray-500);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.serif-num {
  font-family: var(--font-number);
  font-weight: 500;
  color: var(--brand-gold-500);
  font-feature-settings: "lnum" 1;
}

/* =========================================================
   4. Layout Utilities
   ========================================================= */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.section {
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}

.section-sm {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.section-divider {
  height: 1px;
  background: var(--gray-300);
  margin: 0 var(--container-pad);
}

.grid {
  display: grid;
  gap: var(--space-3);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }
}

@media (min-width: 901px) and (max-width: 1200px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

/* =========================================================
   5. Navigation
   ========================================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(244, 239, 230, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base), background var(--t-base);
}

.nav.scrolled {
  border-bottom-color: var(--gray-300);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.nav-logo img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-menu a {
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1.5px;
  background: var(--brand-green-700);
  transition: width var(--t-base);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  position: relative;
  transition: transform var(--t-base);
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span::before { top: -7px; }
.nav-toggle span::after  { top: 7px; }

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--paper);
    padding: var(--space-3);
    gap: var(--space-2);
    border-bottom: 1px solid var(--gray-300);
    transform: translateY(-120%);
    transition: transform var(--t-base);
  }
  .nav-menu.open {
    transform: translateY(0);
  }
  .nav-toggle { display: flex; }
  .nav-toggle.open span {
    background: transparent;
  }
  .nav-toggle.open span::before {
    transform: rotate(45deg);
    top: 0;
  }
  .nav-toggle.open span::after {
    transform: rotate(-45deg);
    top: 0;
  }
}

/* =========================================================
   6. Hero
   ========================================================= */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding-top: 72px;
  gap: var(--space-5);
  position: relative;
  overflow: hidden;
}

.hero-content {
  padding: var(--space-6) var(--container-pad);
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  color: var(--brand-green-700);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--brand-green-700);
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
  color: var(--ink);
}

.hero-title em {
  font-style: normal;
  color: var(--brand-green-700);
}

.hero-subtitle {
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 540px;
  margin-bottom: var(--space-4);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--brand-green-700);
  border-bottom: 1.5px solid var(--brand-green-700);
  padding-bottom: 4px;
  transition: gap var(--t-base), color var(--t-base), border-color var(--t-base);
}

.hero-cta:hover {
  gap: 16px;
  color: var(--brand-gold-700);
  border-color: var(--brand-gold-700);
}

.hero-cta-arrow {
  transition: transform var(--t-base);
}

.hero-cta:hover .hero-cta-arrow {
  transform: translateX(4px);
}

.hero-image {
  height: 100%;
  position: relative;
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from { transform: scale(1.05); }
  to   { transform: scale(1.12); }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 100px;
  }
  .hero-content {
    padding: var(--space-5) var(--container-pad) 0;
  }
  .hero-image {
    height: 60vh;
    margin: 0 var(--container-pad);
  }
}

/* =========================================================
   7. Quote Banner
   ========================================================= */
.quote-banner {
  background: var(--paper-warm);
  padding: var(--space-6) 0;
  text-align: center;
  border-top: 1px solid var(--gray-300);
  border-bottom: 1px solid var(--gray-300);
}

.quote-banner blockquote {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.5;
  color: var(--ink);
  max-width: 800px;
  margin: 0 auto;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.quote-banner blockquote::before {
  content: "「";
  color: var(--brand-gold-500);
  margin-right: 8px;
}

.quote-banner blockquote::after {
  content: "」";
  color: var(--brand-gold-500);
  margin-left: 8px;
}

.quote-banner cite {
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-style: normal;
  color: var(--gray-500);
  letter-spacing: 0.1em;
}

/* =========================================================
   8. Business Cards (双业务入口)
   ========================================================= */
.biz-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

@media (max-width: 900px) {
  .biz-cards { grid-template-columns: 1fr; }
}

.biz-card {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
  cursor: pointer;
  display: block;
  color: var(--paper);
}

.biz-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.biz-card:hover img {
  transform: scale(1.06);
}

.biz-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(26, 26, 26, 0.85) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-4);
}

.biz-card-num {
  font-family: var(--font-number);
  font-size: 18px;
  color: var(--brand-gold-300);
  margin-bottom: var(--space-1);
  letter-spacing: 0.1em;
}

.biz-card-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: var(--space-1);
  color: var(--paper);
}

.biz-card-desc {
  font-size: 15px;
  color: rgba(244, 239, 230, 0.85);
  margin-bottom: var(--space-2);
  line-height: 1.6;
  max-width: 90%;
}

.biz-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--paper);
  border-bottom: 1.5px solid var(--paper);
  padding-bottom: 4px;
  align-self: flex-start;
}

/* =========================================================
   9. Section Heading
   ========================================================= */
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: end;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--gray-300);
}

.section-head-num {
  font-family: var(--font-number);
  font-size: 24px;
  color: var(--brand-gold-500);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.05em;
}

.section-head-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.section-head-en {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: 400;
  color: var(--gray-500);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 6px;
}

@media (max-width: 768px) {
  .section-head {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

/* =========================================================
   10. Color Cards (色卡精选)
   ========================================================= */
.color-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
}

@media (max-width: 1100px) {
  .color-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 500px) {
  .color-grid { grid-template-columns: 1fr; }
}

.color-card {
  background: var(--paper-warm);
  overflow: hidden;
  transition: transform var(--t-base);
}

.color-card:hover {
  transform: translateY(-4px);
}

.color-swatch {
  aspect-ratio: 1/1.2;
  background: var(--ink);
  position: relative;
  overflow: hidden;
}

.color-swatch img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.color-info {
  padding: var(--space-2) var(--space-2) var(--space-3);
}

.color-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--ink);
  letter-spacing: 0.05em;
}

.color-code {
  font-family: var(--font-number);
  font-size: 13px;
  color: var(--gray-500);
  letter-spacing: 0.1em;
}

/* =========================================================
   11. Service Promise
   ========================================================= */
.promise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
}

@media (max-width: 1100px) {
  .promise-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 500px) {
  .promise-grid { grid-template-columns: 1fr; }
}

.promise-card {
  padding: var(--space-3);
  background: var(--paper);
  border: 1px solid var(--gray-300);
  transition: border-color var(--t-base), background var(--t-base);
}

.promise-card:hover {
  border-color: var(--brand-green-500);
  background: var(--gray-100);
}

.promise-num {
  font-family: var(--font-number);
  font-size: 36px;
  color: var(--brand-gold-500);
  font-weight: 500;
  line-height: 1;
  margin-bottom: var(--space-2);
  letter-spacing: 0.02em;
}

.promise-label {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-1);
  letter-spacing: 0.02em;
}

.promise-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* =========================================================
   12. Storefront Section
   ========================================================= */
.storefront {
  background: var(--brand-green-900);
  color: var(--paper);
  padding: var(--space-7) 0;
}

.storefront-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-5);
  align-items: center;
}

@media (max-width: 900px) {
  .storefront-grid { grid-template-columns: 1fr; }
}

.storefront-image {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.storefront-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.storefront-content .caption {
  color: var(--brand-gold-300);
  margin-bottom: var(--space-2);
}

.storefront-content h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  color: var(--paper);
  margin-bottom: var(--space-3);
  line-height: 1.15;
}

.storefront-addr {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(244, 239, 230, 0.85);
  margin-bottom: var(--space-3);
}

.storefront-addr strong {
  color: var(--paper);
  font-weight: 500;
}

.storefront-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(244, 239, 230, 0.2);
}

.storefront-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.storefront-meta-item .label {
  font-size: 12px;
  color: var(--brand-gold-300);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.storefront-meta-item .value {
  font-size: 16px;
  color: var(--paper);
  font-weight: 500;
}

/* =========================================================
   13. Process Steps
   ========================================================= */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-2);
  position: relative;
}

@media (max-width: 1100px) {
  .process { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 500px) {
  .process { grid-template-columns: 1fr; }
}

.process-step {
  padding: var(--space-3) var(--space-2);
  position: relative;
}

.process-step-num {
  font-family: var(--font-number);
  font-size: 48px;
  color: var(--brand-gold-500);
  font-weight: 500;
  line-height: 1;
  margin-bottom: var(--space-2);
  letter-spacing: 0.02em;
}

.process-step-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-1);
}

.process-step-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* =========================================================
   14. Standard Table (工艺标准 / 品控红线)
   ========================================================= */
.std-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-3) 0;
  background: var(--paper);
}

.std-table thead th {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  background: var(--brand-green-700);
  border: none;
}

.std-table tbody td {
  padding: var(--space-2) var(--space-3);
  font-size: 15px;
  color: var(--ink);
  border-bottom: 1px solid var(--gray-300);
  vertical-align: top;
}

.std-table tbody tr:hover {
  background: var(--gray-100);
}

.std-table tbody tr:last-child td {
  border-bottom: none;
}

/* =========================================================
   15. Red Lines (12 道品控红线)
   ========================================================= */
.red-lines {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

@media (max-width: 1100px) {
  .red-lines { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .red-lines { grid-template-columns: 1fr; }
}

.red-line {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--paper);
  border-left: 3px solid var(--brand-gold-500);
}

.red-line-num {
  font-family: var(--font-number);
  font-size: 24px;
  color: var(--brand-gold-700);
  font-weight: 500;
  line-height: 1.1;
  min-width: 36px;
}

.red-line-text {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.5;
  padding-top: 4px;
}

.red-line-text strong {
  color: var(--ink);
  font-weight: 600;
}

.red-line-text em {
  font-style: normal;
  color: var(--brand-green-700);
  font-size: 13px;
  display: block;
  margin-top: 2px;
}

/* =========================================================
   16. Customization Cases
   ========================================================= */
.case-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.case {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-5);
  align-items: center;
}

.case:nth-child(even) {
  grid-template-columns: 1fr 1.4fr;
}

.case:nth-child(even) .case-image {
  order: 2;
}

@media (max-width: 900px) {
  .case,
  .case:nth-child(even) {
    grid-template-columns: 1fr;
  }
  .case:nth-child(even) .case-image {
    order: 0;
  }
}

.case-image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--paper-warm);
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.case:hover .case-image img {
  transform: scale(1.04);
}

.case-content .caption {
  color: var(--brand-gold-700);
  margin-bottom: var(--space-2);
}

.case-content h3 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 36px);
  margin-bottom: var(--space-2);
  line-height: 1.2;
}

.case-content p {
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: var(--space-2);
}

.case-meta {
  display: flex;
  gap: var(--space-3);
  font-size: 13px;
  color: var(--gray-500);
  padding-top: var(--space-2);
  border-top: 1px solid var(--gray-300);
  letter-spacing: 0.05em;
}

/* =========================================================
   17. Long-form Story (创始人长版)
   ========================================================= */
.story {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.85;
  color: var(--ink);
}

.story p {
  margin-bottom: var(--space-3);
}

.story p:first-of-type::first-letter {
  font-size: 64px;
  line-height: 1;
  float: left;
  padding-right: 12px;
  padding-top: 4px;
  font-weight: 600;
  color: var(--brand-green-700);
}

.story h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
  color: var(--ink);
  letter-spacing: 0.01em;
}

.story-num {
  font-family: var(--font-number);
  font-size: 16px;
  color: var(--brand-gold-500);
  font-weight: 500;
  margin-right: 12px;
  letter-spacing: 0.1em;
}

.story blockquote {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.7;
  color: var(--ink);
  padding: var(--space-3) var(--space-4);
  border-left: 3px solid var(--brand-gold-500);
  background: var(--paper-warm);
  margin: var(--space-3) 0;
  font-style: normal;
}

.story blockquote::before {
  content: "「";
  color: var(--brand-gold-500);
  margin-right: 4px;
}

.story blockquote::after {
  content: "」";
  color: var(--brand-gold-500);
  margin-left: 4px;
}

/* =========================================================
   18. Big Hanzi Display (about 页 hero)
   ========================================================= */
.hanzi-display {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  text-align: center;
  padding: var(--space-6) 0;
}

@media (max-width: 700px) {
  .hanzi-display { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
}

.hanzi-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.hanzi-char {
  font-family: var(--font-display);
  font-size: clamp(96px, 14vw, 200px);
  font-weight: 600;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.hanzi-char.alt {
  color: var(--brand-green-700);
}

.hanzi-meaning {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--gray-500);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hanzi-desc {
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  max-width: 220px;
  text-align: center;
}

/* =========================================================
   19. Values (品牌理念 4 维)
   ========================================================= */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--gray-300);
}

@media (max-width: 1100px) {
  .values-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .values-grid { grid-template-columns: 1fr; }
}

.value-cell {
  padding: var(--space-4) var(--space-3);
  border-right: 1px solid var(--gray-300);
  border-bottom: 1px solid var(--gray-300);
  background: var(--paper);
  transition: background var(--t-base);
}

.value-cell:hover {
  background: var(--gray-100);
}

.value-cell:nth-child(4n) {
  border-right: none;
}

.value-cell:nth-last-child(-n+4) {
  border-bottom: none;
}

@media (max-width: 1100px) {
  .value-cell {
    border-right: 1px solid var(--gray-300);
  }
  .value-cell:nth-child(2n) {
    border-right: none;
  }
  .value-cell:nth-child(4n) {
    border-right: 1px solid var(--gray-300);
  }
  .value-cell:nth-child(2n) {
    border-right: none;
  }
}

.value-hanzi {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 600;
  color: var(--brand-green-700);
  line-height: 1;
  margin-bottom: var(--space-1);
  letter-spacing: -0.02em;
}

.value-keyword {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-1);
}

.value-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* =========================================================
   20. Slogan Collection
   ========================================================= */
.slogans {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.slogan {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--gray-300);
  align-items: start;
}

.slogan:last-child {
  border-bottom: none;
}

.slogan-num {
  font-family: var(--font-number);
  font-size: 18px;
  color: var(--brand-gold-500);
  font-weight: 500;
  padding-top: 6px;
  letter-spacing: 0.1em;
}

.slogan-text {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 28px);
  line-height: 1.5;
  color: var(--ink);
  font-weight: 500;
}

.slogan-text::before {
  content: "「";
  color: var(--brand-gold-500);
  margin-right: 4px;
}

.slogan-text::after {
  content: "」";
  color: var(--brand-gold-500);
  margin-left: 4px;
}

.slogan-author {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 8px;
  font-weight: 400;
}

/* =========================================================
   21. Enterprise Banner
   ========================================================= */
.enterprise-banner {
  background: var(--brand-green-900);
  color: var(--paper);
  padding: var(--space-7) var(--container-pad);
  text-align: center;
}

.enterprise-banner-text {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.4;
  color: var(--paper);
  font-weight: 500;
  letter-spacing: 0.05em;
  max-width: 1000px;
  margin: 0 auto;
}

.enterprise-banner-text .gold {
  color: var(--brand-gold-300);
}

/* =========================================================
   22. Contact Specific
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-info-card {
  background: var(--paper);
  border: 1px solid var(--gray-300);
  padding: var(--space-4);
}

.contact-info-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  margin-bottom: var(--space-3);
  color: var(--ink);
}

.contact-addr {
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: var(--space-3);
}

.contact-addr strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 4px;
  font-size: 18px;
}

.phone-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

@media (max-width: 600px) {
  .phone-grid { grid-template-columns: 1fr; }
}

.phone-card {
  padding: var(--space-3);
  background: var(--paper-warm);
  border-left: 3px solid var(--brand-green-700);
}

.phone-type {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--brand-gold-700);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 6px;
  font-weight: 500;
}

.phone-num {
  font-family: var(--font-number);
  font-size: 28px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.02em;
  line-height: 1.2;
  display: block;
}

.phone-card a.phone-num:hover {
  color: var(--brand-green-700);
}

.phone-note {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 6px;
  line-height: 1.5;
}

.douyin-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--ink);
  color: var(--paper);
  margin-top: var(--space-2);
  transition: background var(--t-base);
}

.douyin-card:hover {
  background: var(--brand-green-900);
  color: var(--paper);
}

.douyin-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.douyin-text .label {
  font-size: 12px;
  color: var(--brand-gold-300);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.douyin-text .value {
  font-size: 17px;
  color: var(--paper);
  font-weight: 500;
}

/* =========================================================
   23. Form
   ========================================================= */
.form {
  background: var(--paper);
  padding: var(--space-4);
  border: 1px solid var(--gray-300);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
}

.form-group {
  margin-bottom: var(--space-2);
}

.form-label {
  display: block;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--paper-warm);
  border: 1px solid var(--gray-300);
  border-radius: 0; /* 反 AI slop：不圆角 */
  transition: border-color var(--t-fast), background var(--t-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--brand-green-700);
  background: var(--paper);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  font-family: inherit;
}

.form-submit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--brand-green-700);
  color: var(--paper);
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background var(--t-base), gap var(--t-base);
}

.form-submit:hover {
  background: var(--brand-green-900);
  gap: 14px;
}

/* =========================================================
   24. Company Info Table
   ========================================================= */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-3) 0;
}

.info-table th,
.info-table td {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--gray-300);
  font-size: 15px;
  vertical-align: top;
}

.info-table th {
  width: 180px;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--ink);
  background: var(--paper-warm);
}

.info-table td {
  color: var(--ink-soft);
  font-family: var(--font-body);
}

@media (max-width: 600px) {
  .info-table th,
  .info-table td {
    display: block;
    width: 100%;
  }
  .info-table th {
    padding-bottom: 4px;
  }
  .info-table td {
    padding-top: 4px;
  }
}

/* =========================================================
   25. Footer
   ========================================================= */
.footer {
  background: var(--ink);
  color: rgba(244, 239, 230, 0.7);
  padding: var(--space-6) 0 var(--space-3);
  margin-top: var(--space-7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }
}

@media (max-width: 500px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--space-2);
}

.footer-brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.footer-brand-text {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--paper);
  font-weight: 600;
}

.footer-tagline {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 239, 230, 0.7);
  margin-bottom: var(--space-2);
}

.footer h4 {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--brand-gold-300);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.footer ul li {
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.footer ul li a {
  color: rgba(244, 239, 230, 0.7);
  transition: color var(--t-fast);
}

.footer ul li a:hover {
  color: var(--paper);
}

.footer-bottom {
  padding-top: var(--space-3);
  border-top: 1px solid rgba(244, 239, 230, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(244, 239, 230, 0.5);
  letter-spacing: 0.05em;
  flex-wrap: wrap;
  gap: var(--space-2);
}

@media (max-width: 600px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* =========================================================
   26. Reveal Animation (progressive enhancement)
   默认全部可见；只有 .js-anim 启用后才进入渐入状态
   ========================================================= */
.js-anim .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

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

.js-anim .reveal-delay-1 { transition-delay: 100ms; }
.js-anim .reveal-delay-2 { transition-delay: 200ms; }
.js-anim .reveal-delay-3 { transition-delay: 300ms; }
.js-anim .reveal-delay-4 { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  .js-anim .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-image img {
    animation: none;
  }
}

/* =========================================================
   27. Page Hero (sub pages)
   ========================================================= */
.page-hero {
  padding-top: 152px;
  padding-bottom: var(--space-6);
  background: var(--paper);
  position: relative;
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.18;
}

.page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.6);
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.page-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  color: var(--brand-green-700);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.page-hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--brand-green-700);
}

.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: var(--space-2);
  max-width: 1000px;
}

.page-hero-subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 720px;
}

/* =========================================================
   28. Two-column section (品牌故事)
   ========================================================= */
.two-col {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-5);
  align-items: start;
}

@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; gap: var(--space-3); }
}

.two-col-sidebar {
  position: sticky;
  top: 100px;
}

@media (max-width: 900px) {
  .two-col-sidebar { position: static; }
}

.two-col-sidebar .caption {
  margin-bottom: var(--space-1);
}

.two-col-sidebar h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.2;
  color: var(--ink);
}

/* =========================================================
   29. Image Showcase (案例大图)
   ========================================================= */
.image-feature {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  margin: var(--space-4) 0;
}

.image-feature img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-feature-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-3);
  background: linear-gradient(180deg, transparent, rgba(26, 26, 26, 0.7));
  color: var(--paper);
}

.image-feature-caption h3 {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--paper);
  margin-bottom: 4px;
}

.image-feature-caption p {
  font-size: 14px;
  color: rgba(244, 239, 230, 0.85);
}

/* =========================================================
   30. Factory Placeholder (工厂实力占位)
   ========================================================= */
.factory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
}

@media (max-width: 1100px) {
  .factory-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .factory-grid { grid-template-columns: 1fr; }
}

.factory-cell {
  background: var(--paper-warm);
  border: 1px dashed var(--gray-500);
  padding: var(--space-4) var(--space-2);
  text-align: center;
}

.factory-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-2);
  color: var(--brand-green-700);
  opacity: 0.6;
}

.factory-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-1);
}

.factory-note {
  font-size: 13px;
  color: var(--gray-500);
  font-style: italic;
}

/* =========================================================
   31. Tag chips
   ========================================================= */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--space-2);
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  color: var(--brand-green-700);
  background: var(--gray-100);
  border: 1px solid var(--brand-green-300);
  letter-spacing: 0.05em;
}

/* =========================================================
   32. Strategic Partner Card (福湘板材)
   ========================================================= */
.partner-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
  background: var(--paper-warm);
  padding: var(--space-5);
  border-left: 4px solid var(--brand-green-700);
}

@media (max-width: 900px) {
  .partner-card { grid-template-columns: 1fr; padding: var(--space-3); }
}

.partner-card h3 {
  font-family: var(--font-display);
  font-size: 32px;
  margin-bottom: var(--space-2);
  color: var(--ink);
}

.partner-card .partner-name {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--brand-green-700);
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.partner-card p {
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: var(--space-2);
}

.partner-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--paper);
  border: 1px solid var(--gray-300);
}

.partner-meta-item {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.partner-meta-item .label {
  color: var(--gray-500);
  letter-spacing: 0.05em;
}

.partner-meta-item .value {
  color: var(--ink);
  font-weight: 500;
  font-family: var(--font-number);
}

/* =========================================================
   33. Promo Strip (首页宣传语 banner)
   ========================================================= */
.promo-strip {
  background: var(--paper-warm);
  padding: var(--space-5) 0;
  text-align: center;
}

.promo-strip-text {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.05em;
}

.promo-strip-text .accent {
  color: var(--brand-green-700);
  font-weight: 600;
}

.promo-strip-text .sep {
  color: var(--brand-gold-500);
  margin: 0 var(--space-2);
}

/* =========================================================
   34. Color Series Display (products 页)
   ========================================================= */
.series-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

@media (max-width: 1100px) {
  .series-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .series-grid { grid-template-columns: 1fr; }
}

.series-card {
  background: var(--paper);
  border: 1px solid var(--gray-300);
  overflow: hidden;
  transition: transform var(--t-base), box-shadow var(--t-base);
}

.series-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(26, 26, 26, 0.08);
}

.series-card-image {
  aspect-ratio: 4/3;
  background: var(--paper-warm);
  overflow: hidden;
}

.series-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.series-card-body {
  padding: var(--space-3);
}

.series-card-num {
  font-family: var(--font-number);
  font-size: 14px;
  color: var(--brand-gold-700);
  letter-spacing: 0.15em;
  margin-bottom: 4px;
}

.series-card-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-1);
}

.series-card-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: var(--space-2);
}

.series-card-skus {
  font-size: 13px;
  color: var(--gray-500);
  padding-top: var(--space-2);
  border-top: 1px solid var(--gray-300);
  letter-spacing: 0.05em;
}

/* =========================================================
   35. Cert (环保等级)
   ========================================================= */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
}

@media (max-width: 800px) {
  .cert-grid { grid-template-columns: 1fr; }
}

.cert-card {
  padding: var(--space-3);
  background: var(--paper-warm);
  border: 1px solid var(--gray-300);
}

.cert-level {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 600;
  color: var(--brand-green-700);
  margin-bottom: var(--space-1);
  letter-spacing: 0.02em;
}

.cert-name {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
  margin-bottom: 6px;
}

.cert-spec {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* =========================================================
   36. Map Placeholder
   ========================================================= */
.map-placeholder {
  aspect-ratio: 16/9;
  background: var(--paper-warm);
  border: 1px dashed var(--gray-500);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-1);
  color: var(--gray-500);
  text-align: center;
  padding: var(--space-3);
}

.map-placeholder svg {
  width: 48px;
  height: 48px;
  color: var(--brand-green-700);
  opacity: 0.6;
}

.map-placeholder-text {
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.map-placeholder-addr {
  font-size: 16px;
  color: var(--ink);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
}

/* =========================================================
   37. Print
   ========================================================= */
@media print {
  .nav, .footer, .hero-cta { display: none; }
  body { background: white; color: black; }
}