/* ============================================================
   HOSIN Sport HK — Shared Stylesheet
   V0.1 Prototype | 2026-07-14 | VERA Codex
   ============================================================

   VI: #000000 / #E6B95A / #FFFFFF
   Fonts: Noto Sans CJK TC, Montserrat, Inter (Google Fonts)
   ============================================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;700;900&family=Montserrat:wght@400;600;700;800;900&family=Inter:wght@400;500;600&display=swap');

/* --- CSS Variables --- */
:root {
  /* Brand Colors */
  --color-black: #000000;
  --color-gold: #E6B95A;
  --color-dark-bg: #0a0a14;
--color-card-bg: #0d0d1a;
--color-white: #FFFFFF;

  /* Functional Colors */
  --color-gray-bg: #F5F5F5;
  --color-gray-text: #333333;
  --color-gray-light: #9CA3AF;
  --color-bronze: #8B7355;
  --color-alert: #E63946;

  /* Typography */
  --font-cjk: 'Noto Sans TC', 'Source Han Sans TC', 'Microsoft JhengHei', 'PingFang HK', sans-serif;
  --font-en: 'Montserrat', 'Inter', 'Segoe UI', system-ui, sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-section: 80px;

  /* Layout */
  --nav-height: 64px;
  --nav-height-mobile: 56px;
  --max-width: 1200px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

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

body {
  font-family: var(--font-cjk);
  color: var(--color-gray-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--nav-height);
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-cjk);
  line-height: 1.2;
  color: var(--color-black);
}

h1 { font-size: 48px; font-weight: 900; }
h2 { font-size: 36px; font-weight: 700; }
h3 { font-size: 24px; font-weight: 700; }
h4 { font-size: 20px; font-weight: 700; }

.en {
  font-family: var(--font-en);
}

.section-title {
  font-size: 36px;
  font-weight: 900;
  color: var(--color-black);
  text-align: center;
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-family: var(--font-en);
  font-size: 16px;
  color: var(--color-gold);
  text-align: center;
  margin-bottom: var(--space-2xl);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 12px 32px;
  font-family: var(--font-cjk);
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  border-radius: 2px;
}

.btn-primary {
  background: var(--color-gold);
  color: var(--color-black);
}

.btn-primary:hover {
  background: #d4a846;
}

.btn-secondary {
  background: transparent;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
}

.btn-secondary:hover {
  background: rgba(230, 185, 90, 0.1);
}

.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-white);
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--color-black);
  color: var(--color-white);
  z-index: 1000;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(230,185,90,0.2);
}

.nav-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-en);
  font-weight: 900;
  font-size: 22px;
  color: var(--color-gold);
  letter-spacing: 3px;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
}

.nav-links a {
  font-family: var(--font-cjk);
  font-size: 14px;
  font-weight: 400;
  color: var(--color-white);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-gold);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-gold);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-black);
    flex-direction: column;
    padding: var(--space-lg) var(--space-xl);
    gap: var(--space-md);
    border-bottom: 1px solid rgba(230,185,90,0.2);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }
}

/* --- Footer --- */
.footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-brand .footer-logo {
  font-family: var(--font-en);
  font-weight: 900;
  font-size: 24px;
  color: var(--color-gold);
  letter-spacing: 3px;
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: 13px;
  color: var(--color-gray-light);
  line-height: 1.8;
}

.footer-col h4 {
  font-family: var(--font-cjk);
  font-size: 14px;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
  font-weight: 700;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--color-gray-light);
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-gold);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: var(--space-2xl) auto 0;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 12px;
  color: var(--color-gray-light);
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 375px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

/* --- Section --- */
.section {
  padding: var(--space-section) var(--space-xl);
}

.section-dark {
  background: var(--color-black);
  color: var(--color-white);
}

.section-dark .section-title {
  color: var(--color-white);
}

.section-gray {
  background: var(--color-gray-bg);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* --- Hero (ported from 薇工 6-Sol, adapted for DS skeleton) --- */
.hero {
  position: relative;
  min-height: 100svh;
  padding: var(--space-section) 0;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: radial-gradient(circle at 76% 42%, rgba(230,185,90,.16), transparent 23%),
              url('images/hero_bg_v6-3.png') center/cover no-repeat,
              var(--color-black) !important;
}

/* Mobile-only background image (hidden on PC) */
.hero-mobile-bg {
  display: none;
}

/* Mobile: vertical hero image + compact layout */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 0;
    align-items: flex-end;
    background: url('images/hero_mobile_v2.jpg') center/cover no-repeat,
                var(--color-black) !important;
  }
  /* Hide mobile bg img tag */
  .hero-mobile-bg {
    display: none !important;
  }
  .hero::before {
    opacity: .55;
    background: linear-gradient(to top, rgba(0,0,0,.95) 0%, rgba(0,0,0,.5) 35%, rgba(0,0,0,.15) 70%, rgba(0,0,0,0) 100%);
    transform: none;
  }
  .hero-inner {
    min-height: 100svh;
    grid-template-columns: 1fr !important;
    align-items: end;
    justify-items: center;
    padding: var(--space-xl) var(--space-md) var(--space-2xl);
    gap: var(--space-md);
  }
  .hero-content {
    text-align: center;
  }
  .hero-content h1.slogan-text {
    font-size: 38px !important;
    line-height: 1.3 !important;
    letter-spacing: 0 !important;
    text-align: center !important;
  }
  .hero-content .hero-en {
    font-size: 11px;
    letter-spacing: .12em;
    text-align: center;
    margin-bottom: var(--space-sm);
  }
  .hero-content .hero-desc {
    font-size: 13px;
    line-height: 1.9;
    max-width: 100%;
    margin-bottom: var(--space-lg);
    text-align: center;
  }
  .hero-cta {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
  }
  .hero-cta .btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .hero-visual {
    display: none !important;
  }
  /* Hide telemetry (05:12/KM) on mobile */
  .hero-telemetry {
    display: none;
  }
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .4;
  background: linear-gradient(to bottom, rgba(0,0,0,.7), rgba(0,0,0,.4) 40%, rgba(0,0,0,.7));
  background-image: linear-gradient(rgba(230,185,90,.28) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(230,185,90,.28) 1px, transparent 1px);
  background-size: 64px 64px;
  transform: perspective(500px) rotateX(65deg) scale(1.7) translateY(28%);
  transform-origin: bottom;
  z-index: 1;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-xl);
  min-height: calc(100svh - 160px);
  display: grid;
  grid-template-columns: 45fr 55fr;
  gap: var(--space-lg);
  align-items: center;
  width: 100%;
}

.hero-content {
  z-index: 2;
}

.hero-content h1.slogan-text {
  font-size: 48px;
  font-weight: 900;
  color: var(--color-gold);
  margin-bottom: var(--space-lg);
  line-height: 1.35;
  letter-spacing: .12em;
}

/* span kept for backward compat, now unused */
.hero-content h1 span {
  display: block;
  color: var(--color-gold);
}

.hero-content .hero-en {
  display: block;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 800;
  color: var(--color-gold);
  letter-spacing: .28em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.hero-content .hero-en::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 1px;
  margin-right: 8px;
  vertical-align: middle;
  background: var(--color-gold);
}

.hero-content .hero-desc {
  max-width: 34rem;
  font-size: 16px;
  color: #bbb;
  margin-bottom: var(--space-2xl);
  line-height: 2;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* --- Hero Art (右栏跑者动效) --- */
.hero-visual {
  position: relative;
  min-height: 30rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-orbit {
  position: absolute;
  left: 56%;
  top: 48%;
  width: 70%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(230,185,90,.25);
  border-radius: 50%;
  box-shadow: 0 0 0 48px rgba(230,185,90,.025), 0 0 64px rgba(230,185,90,.12);
}

.hero-orbit::before,
.hero-orbit::after {
  content: "";
  position: absolute;
  inset: 18%;
  border: 1px dashed rgba(230,185,90,.38);
  border-radius: 50%;
  animation: hero-spin 28s linear infinite;
}

.hero-orbit::after {
  inset: 34%;
  border-style: solid;
  border-color: rgba(255,255,255,.18);
  animation-direction: reverse;
}

.hero-runners {
  position: absolute;
  left: -5%;
  bottom: 0;
  width: 110%;
  height: 96%;
  overflow: visible;
  filter: drop-shadow(0 24px 16px #000);
}

.hero-runner-back { opacity: .3; }
.hero-runner-mid { opacity: .62; }
.hero-runner-main { color: var(--color-gold); }

.hero-speed-lines {
  fill: none;
  stroke: var(--color-gold);
  stroke-width: 2;
  opacity: .45;
  stroke-dasharray: 90 25;
  animation: hero-dash 3s linear infinite;
}

.hero-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 10px var(--color-gold);
  animation: hero-float 4s ease-in-out infinite;
}

.hero-particle.p1 { left: 61%; top: 20%; }
.hero-particle.p2 { left: 82%; top: 31%; animation-delay: -1.2s; }
.hero-particle.p3 { left: 69%; top: 72%; animation-delay: -2.1s; }
.hero-particle.p4 { left: 94%; top: 57%; animation-delay: -.5s; }
.hero-particle.p5 { left: 46%; top: 39%; animation-delay: -3s; }

.hero-telemetry {
  position: absolute;
  right: 0;
  bottom: 32px;
  padding: 16px;
  border-left: 2px solid var(--color-gold);
  background: rgba(0,0,0,.72);
  font-size: 14px;
}

.hero-telemetry strong {
  display: block;
  color: var(--color-gold);
  font-size: 20px;
}

@keyframes hero-spin {
  to { transform: rotate(360deg); }
}

@keyframes hero-dash {
  to { stroke-dashoffset: -230; }
}

@keyframes hero-float {
  50% { transform: translate(16px, -18px); opacity: .25; }
}
.img-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 50%, #1a1a1a 100%);
  border: 1px solid rgba(230,185,90,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-radius: 2px;
  overflow: hidden;
}

.img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(230,185,90,0.05) 0%, transparent 50%, rgba(230,185,90,0.05) 100%);
}

.img-label {
  position: absolute;
  bottom: 12px;
  left: 12px;
  font-family: var(--font-en);
  font-size: 11px;
  color: rgba(230,185,90,0.6);
  letter-spacing: 1px;
  background: rgba(0,0,0,0.7);
  padding: 4px 10px;
  border-radius: 2px;
}

.img-placeholder.square {
  aspect-ratio: 1/1;
}

.img-placeholder.wide {
  aspect-ratio: 3/2;
}

.img-placeholder.card-img {
  aspect-ratio: 4/3;
}

.card-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  background: #0a0a0a;
  display: block;
  max-width: 60%;
  margin: 0 auto;
}

/* --- Trust Bar --- */
.trust-bar {
  background: var(--color-gray-bg);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.trust-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 13px;
  color: var(--color-gray-text);
  font-weight: 500;
}

.trust-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  flex-shrink: 0;
}

/* --- Cards --- */
.card {
  background: #0a0a0a;
  border: 1px solid rgba(230,185,90,.15);
  border-radius: 2px;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--color-gold);
  box-shadow: 0 4px 20px rgba(230,185,90,.1);
}

.card-body {
  padding: var(--space-lg);
  color: var(--color-white);
}

.card-label {
  font-size: 12px;
  color: var(--color-gold);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-sm);
  font-family: var(--font-en);
}

.card-title {
  font-size: 18px;
  color: var(--color-white);
  margin: 0 0 var(--space-sm) 0;
  line-height: 1.4;
  font-weight: 600;
}

.card-text {
  font-size: 14px;
  color: #a3a3a3;
  margin: 0;
  line-height: 1.6;
}

.card-stats {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
  font-size: 13px;
  color: var(--color-gray-light);
}

.card-stats span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

@media (max-width: 768px) {
  .grid-3, .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 375px) {
  .grid-3, .grid-4 {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }
}

/* --- Why HOSIN (icon cards) --- */
.icon-card {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 2px;
  transition: border-color var(--transition-fast);
}

.icon-card:hover {
  border-color: var(--color-gold);
}

.icon-card .icon {
  font-size: 36px;
  margin-bottom: var(--space-md);
}

.icon-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.icon-card p {
  font-size: 14px;
  color: var(--color-gray-text);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .icon-card {
    padding: var(--space-xl) var(--space-md);
  }
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--color-gold);
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
}

.cta-banner h2 {
  font-size: 36px;
  font-weight: 900;
  color: var(--color-black);
  margin-bottom: var(--space-sm);
}

.cta-banner p {
  font-size: 16px;
  color: var(--color-black);
  margin-bottom: var(--space-xl);
  opacity: 0.8;
}

@media (max-width: 768px) {
  .cta-banner h2 {
    font-size: 26px;
  }
}

/* --- WhatsApp Floating Button --- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: #25D366;
  color: var(--color-white);
  padding: 12px 20px;
  border-radius: 50px;
  font-family: var(--font-cjk);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-normal);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-float .wa-icon {
  font-size: 20px;
}

/* Mobile: bottom fixed bar */
@media (max-width: 768px) {
  .whatsapp-float {
    bottom: 0;
    left: 0;
    right: 0;
    border-radius: 0;
    justify-content: center;
    padding: 14px;
    font-size: 15px;
  }

  body {
    padding-bottom: 60px;
  }
}

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

.process-step {
  text-align: center;
  position: relative;
}

.process-step .step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 16px;
  transition: all var(--transition-fast);
}

.process-step.active .step-num {
  background: var(--color-gold);
  color: var(--color-black);
  border-color: var(--color-gold);
}

.process-step .step-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-xs);
}

.process-step .step-desc {
  font-size: 12px;
  color: var(--color-gray-light);
}

/* Connector line */
.process-steps::before {
  content: '';
  position: absolute;
  top: 20px;
  left: calc(10% + 20px);
  right: calc(10% + 20px);
  height: 1px;
  background: rgba(230,185,90,0.3);
  z-index: 0;
}

.process-step {
  z-index: 1;
}

@media (max-width: 768px) {
  .process-steps {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .process-steps::before {
    display: none;
  }

  .process-step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-align: left;
  }

  .process-step .step-num {
    margin: 0;
    flex-shrink: 0;
  }
}

/* --- Product Type Grid (Custom page) --- */
.product-type-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.product-type-card {
  background: var(--color-white);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 2px;
  overflow: hidden;
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.product-type-card:hover {
  border-color: var(--color-gold);
}

.product-type-card .p-img {
  width: 100%;
  aspect-ratio: 1/1;
  background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
  position: relative;
}

.product-type-card .p-name {
  padding: var(--space-md);
  font-weight: 700;
  font-size: 15px;
  color: var(--color-black);
}

@media (max-width: 768px) {
  .product-type-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- Form --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--space-xs);
}

.form-label .required {
  color: var(--color-alert);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-cjk);
  font-size: 14px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 2px;
  background: var(--color-white);
  color: var(--color-black);
  transition: border-color var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-gold);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-file {
  padding: 10px 0;
}

.form-file input {
  font-family: var(--font-cjk);
  font-size: 14px;
}

.form-checkbox-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 14px;
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  accent-color: var(--color-gold);
  width: 16px;
  height: 16px;
}

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

@media (max-width: 375px) {
  .form-row {
    grid-template-columns: 1fr;
  }
  .form-checkbox-group {
    grid-template-columns: 1fr;
  }
}

/* --- FAQ --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid rgba(0,0,0,0.08);
  padding: var(--space-lg) 0;
}

.faq-question {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-black);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-cjk);
}

.faq-question .faq-icon {
  font-size: 20px;
  color: var(--color-gold);
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-question .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding-top: var(--space-md);
  font-size: 14px;
  color: var(--color-gray-text);
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
}

/* --- Case Filter --- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  padding: 8px 24px;
  font-family: var(--font-cjk);
  font-size: 13px;
  font-weight: 700;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 2px;
  background: var(--color-white);
  color: var(--color-gray-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* --- Numbers Block --- */
.numbers-block {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.number-item .num {
  font-family: var(--font-en);
  font-size: 48px;
  font-weight: 900;
  color: var(--color-gold);
  margin-bottom: var(--space-xs);
}

.number-item .num-label {
  font-size: 14px;
  color: var(--color-white);
  opacity: 0.7;
}

@media (max-width: 768px) {
  .numbers-block {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .number-item .num {
    font-size: 36px;
  }
}

/* --- Page Hero (inner pages) --- */
.page-hero {
  background: var(--color-black);
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
}

.page-hero h1 {
  font-size: 42px;
  font-weight: 900;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}

.page-hero p {
  font-size: 16px;
  color: var(--color-gray-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

@media (max-width: 768px) {
  .page-hero h1 {
    font-size: 30px;
  }
}

/* --- About: Story Block --- */
.story-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.story-block .story-visual {
  position: relative;
}

.story-block .story-text h2 {
  font-size: 30px;
  font-weight: 900;
  margin-bottom: var(--space-lg);
  line-height: 1.3;
}

.story-block .story-text p {
  font-size: 15px;
  color: var(--color-gray-text);
  line-height: 1.9;
  margin-bottom: var(--space-md);
}

.story-divider {
  width: 40px;
  height: 3px;
  background: var(--color-gold);
  margin-bottom: var(--space-lg);
}

@media (max-width: 768px) {
  .story-block {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .story-visual {
    order: -1;
  }
}

/* --- Values Block --- */
.values-block {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.value-card {
  text-align: center;
  padding: var(--space-xl);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 2px;
}

.value-card .v-icon {
  font-size: 32px;
  margin-bottom: var(--space-md);
}

.value-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.value-card p {
  font-size: 13px;
  color: var(--color-gray-light);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .values-block {
    grid-template-columns: 1fr;
  }
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.contact-info-item .ci-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 14px;
  color: var(--color-gold);
  margin-bottom: var(--space-xs);
}

.contact-info-item p {
  font-size: 14px;
  color: var(--color-gray-text);
}

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

/* --- Honor Banner / Slogan Banner --- */
.slogan-banner {
  background: var(--color-black);
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  border-top: 1px solid rgba(230,185,90,0.2);
  border-bottom: 1px solid rgba(230,185,90,0.2);
}

.slogan-banner h2 {
  font-size: 42px;
  font-weight: 900;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.slogan-banner p {
  font-family: var(--font-en);
  font-size: 18px;
  color: var(--color-white);
  opacity: 0.7;
  letter-spacing: 2px;
}

@media (max-width: 768px) {
  .slogan-banner h2 {
    font-size: 28px;
  }
}

/* --- Breadcrumb --- */
.breadcrumb {
  font-size: 13px;
  color: var(--color-gray-light);
  margin-bottom: var(--space-lg);
}

.breadcrumb a {
  color: var(--color-gold);
}

.breadcrumb .sep {
  margin: 0 var(--space-sm);
}

/* --- Alert / Notification --- */
.alert-success {
  background: var(--color-gray-bg);
  border-left: 3px solid #25D366;
  padding: var(--space-md) var(--space-lg);
  border-radius: 2px;
  font-size: 14px;
  color: var(--color-gray-text);
  margin-bottom: var(--space-lg);
  display: none;
}

.alert-success.show {
  display: block;
}

/* --- Utility --- */
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

/* --- Notification toast --- */
.toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-black);
  color: var(--color-gold);
  padding: var(--space-md) var(--space-xl);
  border: 1px solid var(--color-gold);
  border-radius: 2px;
  font-weight: 700;
  font-size: 14px;
  z-index: 2000;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s;
  opacity: 0;
}

.toast.show {
  animation: toastIn 0.3s ease forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-20px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* --- Craft showcase slider --- */
.craft-slider {
  position: relative;
  overflow: hidden;
}

.craft-slider .slide {
  text-align: center;
}

.craft-slider .slide-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #0a0a0a, #1a1a1a);
  position: relative;
  border: 1px solid rgba(230,185,90,0.1);
}

.craft-slider .slide-caption {
  margin-top: var(--space-md);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.slider-dot.active {
  background: var(--color-gold);
}

/* --- 5-step custom (light version homepage) --- */
.process-steps-light .step-num {
  border-color: rgba(0,0,0,0.15);
  color: var(--color-black);
}

.process-steps-light .step-title {
  color: var(--color-black);
}

.process-steps-light .step-desc {
  color: var(--color-gray-text);
}

.process-steps-light::before {
  background: rgba(0,0,0,0.1);
}

/* ============================================================
   HK-002: MB51171 跑步背心產品詳情頁
   V0.1 Prototype | 2026-07-14 | VERA Codex
   ============================================================ */

/* --- PDP Layout --- */
.pdp-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (max-width: 768px) {
  .pdp-layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* --- PDP Gallery --- */
.pdp-gallery {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-lg));
}

@media (max-width: 768px) {
  .pdp-gallery {
    position: static;
  }
}

.pdp-main-img {
  position: relative;
  background: var(--color-black);
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(230,185,90,0.15);
}

.pdp-main-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

/* --- Color Swatches --- */
.pdp-colors {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

.pdp-colors-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-gray-text);
}

.pdp-color-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.pdp-swatch {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
  padding: 0;
}

.pdp-swatch:hover {
  transform: scale(1.1);
}

.pdp-swatch.active {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 2px var(--color-black), 0 0 0 4px var(--color-gold);
}

.pdp-swatch .swatch-check {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--color-white);
  opacity: 0;
  transition: opacity var(--transition-fast);
  text-shadow: 0 1px 3px rgba(0,0,0,0.6);
}

.pdp-swatch.active .swatch-check {
  opacity: 1;
}

.pdp-color-name {
  font-size: 14px;
  color: var(--color-gold);
  font-weight: 700;
}

/* --- View Angle Switcher --- */
.pdp-view-angles {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.pdp-angle-btn {
  padding: 6px 18px;
  font-family: var(--font-cjk);
  font-size: 13px;
  font-weight: 700;
  border: 1px solid rgba(0,0,0,0.15);
  border-radius: 2px;
  background: var(--color-white);
  color: var(--color-gray-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pdp-angle-btn:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.pdp-angle-btn.active {
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: var(--color-black);
}

/* --- Thumbnail Strip --- */
.pdp-thumbs {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.pdp-thumb {
  width: 72px;
  height: 72px;
  border: 2px solid rgba(0,0,0,0.08);
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition-fast);
  background: var(--color-gray-bg);
}

.pdp-thumb:hover {
  border-color: var(--color-gray-light);
}

.pdp-thumb.active {
  border-color: var(--color-gold);
}

.pdp-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- PDP Info --- */
.pdp-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.pdp-sku-label {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--color-gray-light);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.pdp-title {
  font-size: 32px;
  font-weight: 900;
  color: var(--color-black);
  line-height: 1.3;
}

.pdp-subtitle {
  font-family: var(--font-en);
  font-size: 15px;
  color: var(--color-gold);
  margin-top: -8px;
  letter-spacing: 1px;
}

.pdp-desc {
  font-size: 15px;
  color: var(--color-gray-text);
  line-height: 1.8;
}

/* --- Key Specs --- */
.pdp-key-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

@media (max-width: 375px) {
  .pdp-key-specs {
    grid-template-columns: 1fr;
  }
}

.pdp-spec-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-gray-bg);
  border-radius: 2px;
  font-size: 13px;
  color: var(--color-gray-text);
  font-weight: 500;
}

.pdp-spec-icon {
  font-size: 16px;
}

/* --- Custom Box --- */
.pdp-custom-box {
  background: var(--color-black);
  border: 1px solid rgba(230,185,90,0.25);
  border-radius: 2px;
  padding: var(--space-lg);
}

.pdp-custom-box h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}

.pdp-custom-box ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.pdp-custom-box li {
  font-size: 13px;
  color: var(--color-gray-light);
  line-height: 1.6;
}

.pdp-custom-box li strong {
  color: var(--color-gold);
}

/* --- PDP CTA --- */
.pdp-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.btn-lg {
  padding: 14px 36px;
  font-size: 15px;
}

/* --- PDP Highlights --- */
.pdp-highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .pdp-highlights {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 375px) {
  .pdp-highlights {
    grid-template-columns: 1fr;
  }
}

.pdp-highlight-card {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 2px;
  transition: border-color var(--transition-fast);
}

.pdp-highlight-card:hover {
  border-color: rgba(230,185,90,0.4);
}

.pdp-hl-icon {
  font-size: 32px;
  margin-bottom: var(--space-md);
}

.pdp-highlight-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.pdp-highlight-card p {
  font-size: 13px;
  color: var(--color-gray-light);
  line-height: 1.7;
}

/* --- PDP Detail Gallery --- */
.pdp-detail-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .pdp-detail-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 375px) {
  .pdp-detail-gallery {
    grid-template-columns: 1fr;
  }
}

.pdp-detail-item {
  text-align: center;
}

.pdp-detail-img {
  background: var(--color-black);
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border: 1px solid rgba(230,185,90,0.1);
  margin-bottom: var(--space-sm);
}

.pdp-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pdp-detail-caption {
  font-size: 13px;
  color: var(--color-gray-text);
  font-weight: 500;
}

/* --- PDP Lifestyle Gallery --- */
.pdp-lifestyle-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .pdp-lifestyle-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 375px) {
  .pdp-lifestyle-gallery {
    grid-template-columns: 1fr;
  }
}

.pdp-lifestyle-item {
  border-radius: 2px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.08);
  transition: border-color var(--transition-fast);
}

.pdp-lifestyle-item:hover {
  border-color: var(--color-gold);
}

.pdp-lifestyle-item img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --- PDP 3D Gallery --- */
.pdp-3d-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .pdp-3d-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 375px) {
  .pdp-3d-gallery {
    grid-template-columns: 1fr;
  }
}

.pdp-3d-item {
  background: var(--color-black);
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(230,185,90,0.1);
}

.pdp-3d-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* --- PDP Size Table --- */
.pdp-badge {
  display: inline-block;
  background: var(--color-gold);
  color: var(--color-black);
  padding: 4px 16px;
  border-radius: 2px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.pdp-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.pdp-size-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  text-align: center;
}

.pdp-size-table thead {
  background: rgba(230,185,90,0.1);
}

.pdp-size-table th {
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-gold);
  border-bottom: 2px solid rgba(230,185,90,0.3);
  white-space: nowrap;
}

.pdp-size-table td {
  padding: 10px 16px;
  color: var(--color-white);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 13px;
}

.pdp-size-table tbody tr:hover {
  background: rgba(230,185,90,0.05);
}

.pdp-size-note {
  margin-top: var(--space-lg);
  font-size: 12px;
  color: var(--color-gray-light);
  line-height: 1.8;
  text-align: center;
}

/* --- PDP Spec Table (light) --- */
.pdp-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.pdp-spec-table tr {
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.pdp-spec-table td {
  padding: 12px 16px;
  vertical-align: top;
}

.pdp-spec-label {
  font-weight: 700;
  color: var(--color-black);
  width: 140px;
  font-size: 13px;
  white-space: nowrap;
}

.pdp-spec-table td:last-child {
  color: var(--color-gray-text);
  font-size: 14px;
}

/* --- PDP Related Products --- */
.pdp-related-link {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: 13px;
  color: var(--color-gold);
  font-weight: 700;
  transition: color var(--transition-fast);
}

.pdp-related-link:hover {
  color: #d4a846;
}

/* --- HK-003: PDP Detail Supplement --- */
.pdp-detail-supplement {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 700px;
}

.pdp-detail-text-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: 14px;
  color: var(--color-text-muted);
}

.pdp-detail-bullet {
  color: var(--color-gold);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================================================
   HK-004: MB51171 详情页图片排版修正
   固定容器 + object-fit 统一裁剪
   2026-07-14 | VERA Codex
   ============================================================ */

/* --- 1. 主图区: 4/5 contain (白底产品图) --- */
.pdp-main-img {
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.pdp-main-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* --- 2. 细节图卡片: 1/1 cover --- */
.pdp-detail-img {
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.pdp-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- 3. 效果图 (场景图): 16/9 cover --- */
.pdp-lifestyle-item {
  overflow: hidden;
}

.pdp-lifestyle-item img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* --- 4. 3D渲染图: 4/3 cover --- */
.pdp-3d-item {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.pdp-3d-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- 5. 响应式 Grid 列数 (Desktop 4 / Tablet 2 / Mobile 1) --- */
/* 细节图网格: 默认 4 列 */
.pdp-detail-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .pdp-detail-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .pdp-detail-gallery {
    grid-template-columns: 1fr;
  }
}

/* 效果图网格: 默认 4 列 */
.pdp-lifestyle-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .pdp-lifestyle-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .pdp-lifestyle-gallery {
    grid-template-columns: 1fr;
  }
}

/* 3D渲染图网格: 默认 3 列 */
.pdp-3d-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .pdp-3d-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .pdp-3d-gallery {
    grid-template-columns: 1fr;
  }
}

/* HK-004 END */

/* ============================================================
   HK-005: PDP V1.2 — 按 PDP_文案模板_V1.1 完整重写
   8 Block 布局、Noto Serif TC H1、中英双语模块
   2026-07-14 | VERA Codex
   ============================================================ */

/* --- H1 书法标题字体 --- */
:root {
  --font-serif-tc: 'Noto Serif TC', 'Source Han Serif TC', 'SimSun', 'PMingLiU', serif;
}

/* --- Block 1-2 左右并排布局 --- */
.pdp-v2-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (max-width: 768px) {
  .pdp-v2-layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* --- 角落英中标签 --- */
.pdp-corner-tag {
  font-family: var(--font-en);
  font-size: 10px;
  color: var(--color-gold);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  opacity: 0.7;
}

.pdp-corner-tag span {
  display: block;
  font-family: var(--font-cjk);
  font-size: 11px;
  color: var(--color-gray-light);
  letter-spacing: 1px;
  text-transform: none;
  margin-top: 2px;
}

.pdp-corner-tag.light {
  color: rgba(230,185,90,0.6);
}

.pdp-corner-tag.light span {
  color: rgba(255,255,255,0.4);
}

/* --- 短线金色装饰 --- */
.pdp-gold-divider {
  width: 50px;
  height: 2px;
  background: var(--color-gold);
  margin-bottom: var(--space-lg);
}

.pdp-gold-divider.centered {
  margin-left: auto;
  margin-right: auto;
  margin-top: var(--space-sm);
}

/* ===== Block 1: 主图区（左 55%） ===== */
.pdp-v2-gallery {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-lg));
}

@media (max-width: 768px) {
  .pdp-v2-gallery {
    position: static;
  }
}

/* 主图容器：4/5 contain */
.pdp-hero-img-wrap {
  background: var(--color-white);
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  border: 1px solid rgba(0,0,0,0.06);
  position: relative;
}

.pdp-hero-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

/* ===== Block 2: 产品信息区（右 45%） ===== */
.pdp-v2-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  min-width: 0;
  overflow: hidden;
}

/* H1 书法/粗衬线标题 */
.pdp-v2-title {
  font-family: var(--font-serif-tc);
  font-size: 36px;
  font-weight: 900;
  color: var(--color-black);
  line-height: 1.25;
  letter-spacing: 2px;
}

.pdp-v2-title-en {
  font-family: var(--font-en);
  font-size: 15px;
  color: var(--color-gold);
  margin-top: -12px;
  letter-spacing: 2px;
  font-weight: 600;
}

.pdp-v2-tagline {
  font-family: var(--font-sans);
  font-size: 12.5px;
  color: #888;
  margin-top: -6px;
  font-style: italic;
}

/* 核心参数速览一行 */
.pdp-v2-specs-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--color-gray-text);
  font-weight: 500;
}

.pdp-v2-spec-chip {
  white-space: nowrap;
}

.pdp-v2-spec-chip.highlight-gold {
  color: #D4AF37;
  font-weight: 700;
}

.pdp-v2-spec-sep {
  color: var(--color-gray-light);
}

/* 3 张卖点卡片 */
.pdp-v2-selling-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.pdp-v2-sell-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-gray-bg);
  border-radius: 2px;
  border-left: 2px solid var(--color-gold);
  transition: all var(--transition-fast);
}

.pdp-v2-sell-card:hover {
  border-left-color: #D4AF37;
  background: rgba(230,185,90,0.04);
}

.pdp-v2-sell-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(230,185,90,0.08);
  border-radius: 50%;
}

.pdp-v2-sell-text h4 {
  font-family: var(--font-cjk);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 2px;
}

.pdp-v2-sell-text p {
  font-size: 13px;
  color: var(--color-gray-text);
  line-height: 1.4;
}

/* 尺码表区域 */
.pdp-v2-size-section {
  padding-top: var(--space-sm);
}

.pdp-v2-info-h3 {
  font-family: var(--font-cjk);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--space-sm);
}

.pdp-v2-info-h3-en {
  font-family: var(--font-en);
  font-size: 11px;
  color: var(--color-gray-light);
  font-weight: 400;
  margin-left: var(--space-sm);
}

.pdp-v2-size-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: center;
}

.pdp-v2-size-table thead {
  background: rgba(230,185,90,0.08);
}

.pdp-v2-size-table th {
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-gold);
  border-bottom: 1px solid rgba(230,185,90,0.2);
  white-space: nowrap;
  font-family: var(--font-cjk);
}

.pdp-v2-size-table td {
  padding: 8px 10px;
  color: var(--color-gray-text);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  font-size: 13px;
}

.pdp-v2-size-table tbody tr:hover {
  background: rgba(230,185,90,0.03);
}

/* CTA 按钮 */
.pdp-v2-cta {
  padding-top: var(--space-sm);
}

.pdp-v2-wa-btn {
  display: block;
  width: 100%;
  text-align: center;
  padding: 14px 28px;
  font-size: 15px;
  letter-spacing: 1px;
}

/* 定制属性 4 条 */
.pdp-v2-custom-attrs {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-md);
  background: var(--color-gray-bg);
  border-radius: 2px;
}

.pdp-v2-custom-attr {
  font-family: var(--font-cjk);
  font-size: 12px;
  color: var(--color-gray-text);
  line-height: 1.5;
}

/* ===== Block 3: 产品细节展示 ===== */
.pdp-v2-detail-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

@media (max-width: 768px) {
  .pdp-v2-detail-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .pdp-v2-detail-grid {
    grid-template-columns: 1fr;
  }
}

.pdp-v2-detail-card {
  text-align: center;
}

.pdp-v2-detail-img {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 2px;
  background: var(--color-black);
  border: 1px solid rgba(230,185,90,0.12);
  margin-bottom: var(--space-sm);
}

.pdp-v2-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.pdp-v2-detail-card:hover .pdp-v2-detail-img img {
  transform: scale(1.03);
}

.pdp-v2-detail-label {
  font-family: var(--font-cjk);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-white);
  opacity: 0.8;
}

/* ===== Block 4: 场景效果图 ===== */
.pdp-v2-scene-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

@media (max-width: 480px) {
  .pdp-v2-scene-grid {
    grid-template-columns: 1fr;
  }
}

/* Single scene: full width */
.pdp-v2-scene-grid.scene-single {
  grid-template-columns: 1fr;
  max-width: 100%;
}

.pdp-v2-scene-grid.scene-single .pdp-v2-scene-item {
  max-width: 900px;
  margin: 0 auto;
}

.pdp-v2-scene-item {
  overflow: hidden;
  border-radius: 2px;
  border: 1px solid rgba(0,0,0,0.06);
  transition: border-color var(--transition-fast);
}

.pdp-v2-scene-item:hover {
  border-color: var(--color-gold);
}

.pdp-v2-scene-item img {
  width: 100%;
  height: auto;
  /* aspect-ratio not forced — scene images use natural proportions */
  object-fit: contain;
  display: block;
}

/* ===== Block 4B: 穿搭展示（原比例，不裁切）===== */
.pdp-v2-styling-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  justify-content: center;
  align-items: flex-start;
}

.pdp-v2-styling-item {
  flex: 1 1 240px;
  max-width: 400px;
  border-radius: 2px;
  border: 1px solid rgba(0,0,0,0.06);
}

.pdp-v2-styling-item img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== Block 5: 定制流程说明 ===== */
.pdp-v2-flow-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

@media (max-width: 768px) {
  .pdp-v2-flow-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .pdp-v2-flow-cards {
    grid-template-columns: 1fr;
  }
}

.pdp-v2-flow-card {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border: 1px solid rgba(230,185,90,0.15);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.pdp-v2-flow-card:hover {
  border-color: rgba(230,185,90,0.4);
  background: rgba(230,185,90,0.03);
}

.pdp-v2-flow-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: transparent;
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 18px;
}

.pdp-v2-flow-card h4 {
  font-family: var(--font-cjk);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-xs);
}

.pdp-v2-flow-card p {
  font-family: var(--font-cjk);
  font-size: 12px;
  color: var(--color-gray-light);
  line-height: 1.6;
}

/* ===== Block 6: 跑会案例占位 ===== */
.pdp-v2-case-placeholder {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 2px;
  background: var(--color-white);
}

.pdp-v2-case-ph {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #e5e5e5 0%, #f0f0f0 50%, #e5e5e5 100%);
  border-radius: 2px;
  margin-bottom: var(--space-lg);
  position: relative;
}

.pdp-v2-case-ph::after {
  content: '📸';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 36px;
  opacity: 0.3;
}

.pdp-v2-case-soon {
  font-family: var(--font-cjk);
  font-size: 14px;
  color: var(--color-gray-light);
  font-weight: 500;
  letter-spacing: 2px;
}

/* ===== Block 7: 相关产品推荐 ===== */
.pdp-v2-related-card {
  transition: all var(--transition-normal);
}

.pdp-v2-related-card:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,0.1);
}

/* ===== Block 8: 底部 CTA ===== */
.pdp-v2-bottom-cta {
  background: var(--color-black);
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  position: relative;
}

.pdp-v2-bottom-cta h2 {
  font-family: var(--font-serif-tc);
  font-size: 32px;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: var(--space-md);
  letter-spacing: 2px;
}

.pdp-v2-bottom-sub {
  font-family: var(--font-cjk);
  font-size: 15px;
  color: var(--color-gray-light);
  line-height: 1.6;
}

.pdp-v2-bottom-wa-btn {
  display: inline-block;
  font-family: var(--font-cjk);
  font-weight: 700;
  font-size: 17px;
  color: var(--color-black);
  background: var(--color-gold);
  padding: 16px 48px;
  border-radius: 2px;
  text-decoration: none;
  letter-spacing: 1px;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 16px rgba(230,185,90,0.3);
}

.pdp-v2-bottom-wa-btn:hover {
  background: #d4a846;
  box-shadow: 0 6px 24px rgba(230,185,90,0.45);
  transform: translateY(-1px);
}

.pdp-v2-bottom-note {
  font-family: var(--font-cjk);
  font-size: 13px;
  color: var(--color-gray-light);
  margin-top: var(--space-lg);
  opacity: 0.7;
}

@media (max-width: 768px) {
  .pdp-v2-bottom-cta h2 {
    font-size: 24px;
  }

  .pdp-v2-bottom-wa-btn {
    font-size: 15px;
    padding: 14px 32px;
  }

  .pdp-v2-title {
    font-size: 28px;
  }
}

/* ===== PDP V2 Responsive Tweaks ===== */
@media (max-width: 480px) {
  .pdp-v2-title {
    font-size: 24px;
  }

  .pdp-v2-title-en {
    font-size: 13px;
  }

  .pdp-v2-specs-row {
    font-size: 13px;
    gap: 4px;
  }

  .pdp-v2-sell-text h4 {
    font-size: 13px;
  }

  .pdp-v2-sell-text p {
    font-size: 12px;
  }

  .pdp-v2-wa-btn {
    font-size: 13px;
    padding: 12px 20px;
  }
}

/* HK-005 END *//* ─── Product Cards Grid (custom.html) ─── */
.cat-tabs { display:flex; gap:8px; margin-bottom:24px; flex-wrap:wrap; justify-content:center; }
.cat-tab { padding:8px 16px; border:1px solid var(--color-gold); background:#1a1a1a; color:var(--color-gold); cursor:pointer; border-radius:4px; font-size:14px; font-family:var(--font-cjk); transition:all 0.2s; }
.cat-tab.active, .cat-tab:hover { background:var(--color-gold); color:#1a1a1a; }lack); }
.cat-grid { display:none; grid-template-columns:repeat(4, 1fr); gap:16px; }
.cat-grid.active { display:grid; }
@media (max-width: 768px) { .cat-grid { grid-template-columns:repeat(2, 1fr); gap:12px; } }
.product-card { display:block; background:#1a1a1a; border-radius:6px; overflow:hidden; text-decoration:none; transition:transform 0.2s,box-shadow 0.2s; border:1px solid #333; }
.product-card:hover { transform:translateY(-3px); box-shadow:0 8px 24px rgba(0,0,0,0.4); border-color:var(--color-gold); }
.card-img-wrap { position:relative; aspect-ratio:1; overflow:hidden; background:#0a0a14; }
.card-img-wrap img { width:100%; height:100%; object-fit:cover; }
.card-color-badge { position:absolute; top:8px; right:8px; background:rgba(0,0,0,0.7); color:var(--color-gold); padding:2px 8px; border-radius:10px; font-size:11px; }
.card-body { padding:10px 12px 14px; }
.card-sku { font-size:11px; color:#aaa; margin:0 0 4px; font-family:var(--font-en); }

/* ============================================================
   MOBILE GLOBAL OPTIMIZATION (max-width: 768px)
   ============================================================ */
@media (max-width: 768px) {
  /* --- section spacing --- */
  .section {
    padding: var(--space-2xl) var(--space-md);
  }
  .section-title {
    font-size: 24px;
  }
  .section-subtitle {
    font-size: 13px;
  }

  /* --- trust bar --- */
  .trust-bar-inner {
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-md);
  }
  .trust-item {
    font-size: 11px;
  }

  /* --- scene cards: compact images on mobile --- */
  .grid-3, .grid-4 {
    gap: var(--space-md);
  }
  .card-img {
    aspect-ratio: 1/1;
    max-width: 100%;
  }

  /* --- card text --- */
  .card-title {
    font-size: 15px;
  }
  .card-text {
    font-size: 12px;
  }
  .card-body {
    padding: var(--space-sm) var(--space-md);
  }

  /* --- filter bar --- */
  .filter-bar {
    gap: 6px;
    margin-bottom: var(--space-lg);
    padding: 0 var(--space-sm);
  }
  .filter-btn {
    padding: 6px 14px;
    font-size: 12px;
  }

  /* --- numbers block --- */
  .numbers-block {
    gap: var(--space-md);
  }
  .numbers-block .number {
    font-size: 24px;
  }
  .numbers-block .label {
    font-size: 12px;
  }

  /* --- product cards (already 2-col, fine-tune) --- */
  .product-card .card-body {
    padding: 8px 10px 12px;
  }
  .product-card .card-sku {
    font-size: 10px;
  }

  /* --- footer --- */
  .footer-inner {
    flex-direction: column;
    gap: var(--space-xl);
    padding: var(--space-xl) var(--space-md);
  }
  .footer-col h4 {
    font-size: 13px;
  }
  .footer-col a {
    font-size: 12px;
  }
}

.origin-disclosure{width:min(1240px,calc(100% - 32px));margin:0 auto;padding:18px 0 0;color:#8fa1b3;font-size:.72rem;font-weight:800;letter-spacing:.02em}