/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; }

/* ===== VARIABLES — 与 About 一致：暖纸色 + 品牌金 + 结构灰 + Sage + CTA ===== */
:root {
  --color-bg-primary: #FEFDF8;
  --color-bg-secondary: #F8F5ED;
  --color-primary: #C9A962;
  --color-primary-hover: #D4A853;
  --color-structure: #D6D1C7;
  --color-accent: #7A9E7E;
  --color-text: #2C2C2C;
  --color-text-muted: #6B6B6B;
  --color-cta: #b8860b;

  --color-white: #ffffff;
  --color-deep: #2a2826;
  --color-deep-mid: #3f3c38;
  --color-border: color-mix(in srgb, var(--color-structure) 50%, transparent);
  --color-tag: var(--color-accent);
  --color-button-bg: var(--color-cta);
  --color-button-text: var(--color-white);
  --gradient-hero: linear-gradient(165deg, #FEFDF8 0%, #ffffff 45%, #F8F5ED 100%);
  /* 兼容旧名（区块背景） */
  --color-surface: var(--color-bg-secondary);
  --color-surface-warm: var(--color-bg-secondary);
}

/* 字体与字号：typography-system.css */

/* ===== BODY（颜色由主题令牌覆盖 typography-system 中的 fallback）===== */
body {
  color: var(--color-text);
  background: var(--color-bg-primary);
}

/* ===== CONTAINER ===== */
/* .container → layout-system.css */

/* ===== ICON ===== */
.icon {
  width: var(--icon-md); height: var(--icon-md);
  stroke: currentColor; fill: none;
  display: inline-block; vertical-align: middle;
}
.icon--sm { width: var(--icon-sm); height: var(--icon-sm); }
.icon--lg { width: var(--icon-lg); height: var(--icon-lg); }

/* ===== BUTTON ===== */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 16px;
  background-color: var(--color-button-bg); color: var(--color-button-text);
  text-decoration: none; font-size: var(--text-sm); font-weight: 600;
  border: none; cursor: pointer;
  transition: background 0.25s, transform 0.15s;
  letter-spacing: 0.02em;
}
.btn:hover { background: color-mix(in srgb, var(--color-cta) 78%, #000000); transform: translateY(-1px); }
.btn--accent { background: var(--color-accent); color: var(--color-white); }
.btn--accent:hover { background: color-mix(in srgb, var(--color-accent) 82%, #000000); }
.btn--outline { background: transparent; border: 1.5px solid currentColor; color: var(--color-white); }
.btn--outline:hover { background: rgba(255,255,255,0.08); }
.btn--outline-dark { background: transparent; border: 1.5px solid var(--color-text); color: var(--color-text); }
.btn--outline-dark:hover { background: var(--color-text); color: var(--color-white); }
.btn--outline-primary { background: transparent; border: 1.5px solid var(--color-primary); color: var(--color-text); }
.btn--outline-primary:hover { background: var(--color-bg-secondary); border-color: var(--color-primary-hover); color: var(--color-text); }
.btn--lg { padding: 14px 28px; font-size: var(--text-base); }

/* ===== TAG ===== */
.tag { color: var(--color-tag); font-size: var(--text-sm); font-weight: 600; }

/* ===== HEADER → assets/css/header.css ===== */

/* ===== 1 HERO（暖纸全屏 + 金 / Sage 光晕） ===== */
.hero {
  position: relative; min-height: 700px; display: flex; align-items: center;
  overflow: hidden; padding: 48px 0 80px; background: var(--gradient-hero);
}
.hero__media {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
}
.hero__media picture,
.hero__bg-image {
  display: block; width: 100%; height: 100%;
}
.hero__bg-image {
  object-fit: cover;
}
.hero__atmosphere { position: absolute; inset: 0; pointer-events: none; z-index: 1; }
.hero__atmosphere::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 68% 52% at 72% 28%, rgba(201,169,98,0.18) 0%, transparent 62%),
    radial-gradient(ellipse 38% 36% at 12% 78%, rgba(122,158,126,0.1) 0%, transparent 52%),
    linear-gradient(180deg, rgba(254,253,248,0.72) 0%, rgba(248,245,237,0.78) 100%);
}
.hero__atmosphere::after {
  content: ''; position: absolute; inset: 0; opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero__orb {
  position: absolute; border-radius: 50%; pointer-events: none;
}
.hero__orb--gold {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(201,169,98,0.14) 0%, transparent 65%);
  top: 10%; right: -8%; animation: orbFloat 10s ease-in-out infinite;
}
.hero__orb--blue {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(122,158,126,0.12) 0%, transparent 60%);
  bottom: 5%; left: -5%; animation: orbFloat 12s ease-in-out infinite reverse;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(15px,-20px) scale(1.08); }
}
.hero__lines { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 1; }
.hero__lines::before, .hero__lines::after {
  content: ''; position: absolute; width: 200%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201,169,98,0.1), transparent);
}
.hero__lines::before { top: 35%; left: -50%; transform: rotate(-3deg); }
.hero__lines::after { top: 65%; left: -50%; transform: rotate(2deg); }
.hero .container { position: relative; z-index: 2; }
.hero__content { max-width: 660px; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 14px; background: color-mix(in srgb, var(--color-primary) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-primary) 28%, transparent);
  color: var(--color-text); font-size: var(--text-xs); font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 28px; animation: fadeUp 0.7s ease both;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.5vw, 64px); font-weight: 700;
  line-height: 1.1; color: #1C2430;
  margin-bottom: 20px; letter-spacing: -0.01em;
  animation: fadeUp 0.7s 0.12s ease both;
}
.hero__title em { font-style: italic; color: #C8A24A; }
.hero__sub {
  font-size: var(--text-lg); line-height: 1.7;
  color: rgba(28,36,48,0.78); max-width: 500px;
  margin-bottom: 36px; animation: fadeUp 0.7s 0.24s ease both;
  padding: 10px 14px;
  background: linear-gradient(
    90deg,
    rgba(255,255,255,0.85) 0%,
    rgba(255,255,255,0.55) 40%,
    rgba(255,255,255,0.15) 100%
  );
}
.hero__cta-row {
  display: flex; flex-wrap: wrap; gap: 14px;
  animation: fadeUp 0.7s 0.36s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 1024px) {
  .hero { min-height: 620px; padding: 44px 0 72px; }
}
@media (max-width: 768px) {
  .hero { min-height: 540px; padding: 40px 0 64px; }
}

/* ===== 2 TRUST BAR ===== */
.trust-bar { position: relative; z-index: 3; margin-top: -40px; }
.trust-bar__inner {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--color-border); box-shadow: 0 8px 40px rgba(0,0,0,0.07);
}
.trust-bar__item { background: var(--color-white); padding: 24px 20px; text-align: center; }
.trust-bar__num {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 700; color: var(--color-text); line-height: 1.1;
}
.trust-bar__label { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: 4px; }
@media (min-width: 768px) { .trust-bar__inner { grid-template-columns: repeat(5, 1fr); } }

/* ===== SECTION COMMON ===== */
.section-header { margin-bottom: 48px; }
.section-eyebrow {
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--color-primary); margin-bottom: 10px;
}
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, var(--text-3xl));
  font-weight: 700; line-height: 1.15; color: var(--color-text);
}
.section-desc {
  font-size: var(--text-md); color: var(--color-text-muted);
  max-width: 520px; margin-top: 12px; line-height: 1.65;
}

/* ===== 3 PRODUCT CATEGORIES ===== */
.categories { padding: 88px 0; }
.cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.cat-card {
  position: relative; overflow: hidden;
  border: 1px solid var(--color-border); background: var(--color-white);
  transition: box-shadow 0.3s, transform 0.3s;
}
.cat-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.07); transform: translateY(-3px); }
.cat-card__img {
  aspect-ratio: 3/4; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.cat-card__img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, color-mix(in srgb, var(--color-deep) 78%, transparent) 0%, transparent 52%);
  pointer-events: none;
}
.cat-card__body { padding: 20px 18px; }
.cat-card__name {
  font-family: var(--font-display); font-size: var(--text-lg);
  font-weight: 700; color: var(--color-text); margin-bottom: 6px; line-height: 1.25;
}
.cat-card__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; margin-bottom: 14px; }
.cat-card__count {
  font-size: var(--text-xs); font-weight: 600; color: var(--color-primary);
  letter-spacing: 0.04em; text-transform: uppercase;
}
.cat-card__link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--text-sm); font-weight: 600; color: var(--color-tag); transition: gap 0.2s;
}
.cat-card__link:hover { gap: 10px; }
@media (min-width: 1024px) { .cat-grid { grid-template-columns: repeat(4, 1fr); gap: 20px; } }

/* ===== 4 CORE SELLING POINTS ===== */
.usp { padding: 88px 0; background: var(--color-surface); }
.usp-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.usp-card {
  position: relative; overflow: hidden;
  transition: box-shadow 0.3s, transform 0.3s;
}
.usp-card:hover { box-shadow: 0 10px 40px rgba(0,0,0,0.12); transform: translateY(-3px); }
.usp-card__img {
  aspect-ratio: 4/3; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.usp-card__img img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s;
}
.usp-card:hover .usp-card__img img { transform: scale(1.05); }
.usp-card__img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.25) 45%, rgba(0,0,0,0.05) 100%);
  z-index: 2;
  pointer-events: none;
}
.usp-card__body {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 24px 22px;
  z-index: 3;
}
.usp-card__num {
  font-family: var(--font-display); font-size: var(--text-xs);
  font-weight: 700; color: var(--color-primary); line-height: 1;
  letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 8px;
}
.usp-card__title {
  font-family: var(--font-display); font-size: var(--text-xl);
  font-weight: 700; color: #ffffff; margin-bottom: 8px; line-height: 1.25;
}
.usp-card__desc {
  font-size: var(--text-sm); color: rgba(255,255,255,0.75);
  line-height: 1.6;
}
@media (min-width: 768px) {
  .usp-grid { grid-template-columns: repeat(2, 1fr); }
  .usp-card__img { aspect-ratio: 3/4; }
}
@media (min-width: 1024px) {
  .usp-grid { grid-template-columns: repeat(4, 1fr); }
  .usp-card__body { padding: 24px 20px; }
  .usp-card__title { font-size: var(--text-lg); }
}

/* ===== 5 PRODUCTS ===== */
.products { padding: 88px 0; }
.prod-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.prod-card {
  border: 1px solid var(--color-border); background: var(--color-white);
  overflow: hidden; transition: box-shadow 0.3s, transform 0.3s;
}
.prod-card:hover { box-shadow: 0 10px 40px rgba(0,0,0,0.07); transform: translateY(-3px); }
.prod-card__visual {
  aspect-ratio: 3/4; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.prod-card__visual-label {
  font-family: var(--font-display); font-size: clamp(18px,2vw,28px);
  font-weight: 700; color: color-mix(in srgb, var(--color-text) 10%, transparent);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.prod-card__flag {
  position: absolute; top: 14px; left: 14px; padding: 3px 10px;
  background: var(--color-primary); color: var(--color-text);
  font-size: var(--text-xs); font-weight: 700;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.prod-card__body { padding: 20px 18px; }
.prod-card__series {
  font-size: var(--text-xs); font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-primary); margin-bottom: 6px;
}
.prod-card__name {
  font-family: var(--font-display); font-size: var(--text-lg);
  font-weight: 700; color: var(--color-text);
  margin-bottom: 8px; line-height: 1.25;
}
.prod-card__text { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; margin-bottom: 12px; }
.prod-card__specs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.prod-card__spec { padding: 3px 9px; background: var(--color-surface); font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 500; }
.prod-card__more {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--text-sm); font-weight: 600; color: var(--color-tag); transition: gap 0.2s;
}
.prod-card__more:hover { gap: 10px; }
@media (min-width: 1024px) { .prod-grid { grid-template-columns: repeat(4, 1fr); } }

/* ===== 6 CUSTOM ENTRY ===== */
.custom-entry {
  padding: 88px 0; background: var(--color-deep); color: var(--color-white);
  position: relative; overflow: hidden;
}
.custom-entry__bg-pattern {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.03;
  background-image:
    repeating-linear-gradient(90deg, transparent, transparent 80px, rgba(255,255,255,0.5) 80px, rgba(255,255,255,0.5) 81px),
    repeating-linear-gradient(0deg, transparent, transparent 80px, rgba(255,255,255,0.5) 80px, rgba(255,255,255,0.5) 81px);
}
.custom-entry .container { position: relative; z-index: 2; }
.custom-layout { display: grid; grid-template-columns: 1fr; gap: 48px; align-items: center; }
.custom-entry__steps { display: grid; grid-template-columns: 1fr; gap: 20px; margin-top: 32px; }
.custom-step { display: flex; gap: 14px; align-items: flex-start; }
.custom-step__num {
  flex-shrink: 0; width: 32px; height: 32px;
  background: color-mix(in srgb, var(--color-primary) 22%, transparent); color: var(--color-primary);
  font-family: var(--font-display); font-size: var(--text-md); font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.custom-step__info h4 { font-size: var(--text-md); font-weight: 600; color: var(--color-white); margin-bottom: 4px; }
.custom-step__info p { font-size: var(--text-sm); color: rgba(255,255,255,0.5); line-height: 1.55; }
.custom-entry__highlights { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.custom-highlight {
  padding: 24px 18px; background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06); text-align: center;
}
.custom-highlight__val {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 700; color: var(--color-primary); line-height: 1.1;
}
.custom-highlight__label { font-size: var(--text-xs); color: rgba(255,255,255,0.4); margin-top: 4px; }
@media (min-width: 1024px) {
  .custom-layout { grid-template-columns: 1fr 1fr; }
  .custom-entry__steps { grid-template-columns: 1fr 1fr; }
}

/* ===== 7 CASES ===== */
.cases { padding: 88px 0; }
.case-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.case-item {
  border: 1px solid var(--color-border); overflow: hidden;
  display: flex; flex-direction: column; transition: box-shadow 0.3s;
}
.case-item:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.06); }
.case-item__visual {
  aspect-ratio: 16/9; position: relative;
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.case-item__visual-label {
  font-family: var(--font-display); font-size: var(--text-lg);
  font-weight: 600; color: color-mix(in srgb, var(--color-white) 14%, transparent);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.case-item__body { padding: 24px 22px; flex: 1; display: flex; flex-direction: column; }
.case-item__type {
  font-size: var(--text-xs); font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--color-primary); margin-bottom: 6px;
}
.case-item__title {
  font-family: var(--font-display); font-size: var(--text-xl);
  font-weight: 700; color: var(--color-text); margin-bottom: 8px;
}
.case-item__challenge { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; margin-bottom: 12px; flex: 1; }
.case-item__result { font-size: var(--text-sm); font-weight: 600; color: var(--color-tag); }
@media (min-width: 768px) { .case-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .case-grid { grid-template-columns: repeat(3, 1fr); } }

/* ===== 8 MANUFACTURING ===== */
.mfg { padding: 88px 0; background: var(--color-surface); }
.mfg-layout { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
.mfg-steps { display: grid; grid-template-columns: 1fr; gap: 24px; }
.mfg-step { display: flex; gap: 16px; align-items: flex-start; }
.mfg-step__icon {
  flex-shrink: 0; width: 44px; height: 44px;
  background: var(--color-white); border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center; color: var(--color-tag);
}
.mfg-step h4 { font-size: var(--text-md); font-weight: 600; color: var(--color-text); margin-bottom: 4px; }
.mfg-step p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }
.mfg-visual {
  background: linear-gradient(145deg, var(--color-deep), var(--color-deep-mid));
  padding: 40px 28px; position: relative; overflow: hidden;
}
.mfg-visual::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(201,169,98,0.14), transparent 60%);
}
.mfg-visual__content { position: relative; z-index: 1; }
.mfg-visual__quote {
  font-family: var(--font-display); font-size: var(--text-xl);
  font-weight: 400; font-style: italic; color: var(--color-white);
  line-height: 1.45; margin-bottom: 20px;
}
.mfg-visual__cite { font-size: var(--text-sm); color: rgba(255,255,255,0.4); }
.mfg-certs {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 28px; padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mfg-cert {
  padding: 6px 14px; border: 1px solid rgba(255,255,255,0.12);
  font-size: var(--text-sm); font-weight: 600;
  color: rgba(255,255,255,0.6); letter-spacing: 0.04em;
}
@media (min-width: 1024px) {
  .mfg-layout { grid-template-columns: 1fr 1fr; }
  .mfg-steps { grid-template-columns: 1fr 1fr; }
}

/* ===== 9 SEO GUIDES ===== */
.seo-guides { padding: 88px 0; }
.guide-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.guide-card {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 24px 22px; border: 1px solid var(--color-border);
  background: var(--color-white); transition: box-shadow 0.3s, transform 0.2s;
}
.guide-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.04); transform: translateY(-1px); }
.guide-card__icon {
  flex-shrink: 0; width: 40px; height: 40px;
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  display: flex; align-items: center; justify-content: center; color: var(--color-primary);
}
.guide-card__title {
  font-family: var(--font-display); font-size: var(--text-md);
  font-weight: 700; color: var(--color-text); margin-bottom: 4px;
}
.guide-card__excerpt { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }
@media (min-width: 768px) { .guide-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) {
  .guide-grid { grid-template-columns: repeat(4, 1fr); }
  .guide-card { flex-direction: column; }
}

/* ===== 10 FINAL CTA ===== */
.final-cta {
  padding: 80px 0; background: var(--color-bg-secondary); text-align: center;
  border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border);
}
.final-cta__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 40px); font-weight: 700;
  color: var(--color-text); margin-bottom: 14px; line-height: 1.2;
}
.final-cta__desc {
  font-size: var(--text-md); color: var(--color-text-muted);
  max-width: 480px; margin: 0 auto 32px; line-height: 1.65;
}
.final-cta__actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ===== FOOTER → assets/css/footer.css ===== */

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }