/* ===== Reset & Base ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0a0e1a;
  color: #e6e8ec;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
input, select, textarea { font-family: inherit; }

:root {
  --primary: #ff5a36;
  --primary-dark: #e04827;
  --secondary: #00d4ff;
  --accent: #ffc83d;
  --bg-dark: #0a0e1a;
  --bg-darker: #060810;
  --bg-card: #111626;
  --bg-card-2: #161d31;
  --border: #1f2740;
  --text-primary: #e6e8ec;
  --text-secondary: #9ba3b8;
  --text-muted: #6b7388;
  --gradient: linear-gradient(135deg, #ff5a36 0%, #ff8a3d 40%, #00d4ff 100%);
  --gradient-2: linear-gradient(135deg, #ff5a36, #ffc83d);
  --shadow-glow: 0 0 60px rgba(255, 90, 54, 0.25);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-lg svg { width: 18px; height: 18px; }
.btn-block { width: 100%; }
.btn-primary {
  background: linear-gradient(135deg, #ff5a36, #e04827);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 90, 54, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 90, 54, 0.5);
}
.btn-outline {
  border: 1.5px solid rgba(255, 90, 54, 0.5);
  color: #ff5a36;
}
.btn-outline:hover {
  background: rgba(255, 90, 54, 0.1);
  border-color: #ff5a36;
}
.btn-ghost {
  color: #e6e8ec;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.15);
}
.btn-yellow {
  background: linear-gradient(135deg, #ffc83d, #ff9f1c);
  color: #1a1a1a;
  box-shadow: 0 4px 20px rgba(255, 200, 61, 0.35);
}
.btn-yellow:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 200, 61, 0.5);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: all 0.3s ease;
}
.nav.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo-img {
  height: 40px;
  width: auto;
  border-radius: 6px;
}
.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
  justify-content: center;
  flex-wrap: wrap;
}
.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: all 0.2s ease;
  font-weight: 500;
}
.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.nav-actions {
  display: flex;
  gap: 12px;
}
.nav-actions .btn { padding: 10px 20px; font-size: 13px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1024px) {
  .nav-links.mobile-open {
    display: flex !important;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    justify-content: flex-start;
  }
  .nav-links.mobile-open a {
    padding: 14px 20px;
    font-size: 15px;
    border-radius: 10px;
  }
  .nav-actions.mobile-open {
    display: none;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(255, 90, 54, 0.25) 0%, transparent 50%),
    radial-gradient(ellipse at 10% 80%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
    linear-gradient(180deg, #0a0e1a 0%, #0d1226 50%, #0a0e1a 100%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
}
.hero-glow-1 {
  width: 500px; height: 500px;
  background: #ff5a36;
  top: -200px;
  right: -100px;
}
.hero-glow-2 {
  width: 400px; height: 400px;
  background: #00d4ff;
  bottom: -150px;
  left: -100px;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(255, 90, 54, 0.1);
  border: 1px solid rgba(255, 90, 54, 0.3);
  border-radius: 100px;
  font-size: 13px;
  color: #ff9a7a;
  margin-bottom: 28px;
}
.badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #ff5a36;
  box-shadow: 0 0 10px #ff5a36;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-title {
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 20px;
}
.hero-title-line {
  display: block;
  color: #fff;
}
.hero-title-gradient {
  background: linear-gradient(135deg, #ff5a36 0%, #ffc83d 50%, #00d4ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.stat-item {
  flex: 1;
}
.stat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 42px;
  font-weight: 400;
  color: #fff;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-unit {
  font-size: 20px;
  color: #ff5a36;
  margin-left: 4px;
}
.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-hero-wrap {
  position: relative;
  width: 100%;
  max-width: 440px;
  aspect-ratio: 3/4;
}
.hero-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  position: relative;
  z-index: 2;
}
.hero-hero-shadow {
  position: absolute;
  bottom: -20px;
  left: 10%;
  right: 10%;
  height: 40px;
  background: radial-gradient(ellipse, rgba(255, 90, 54, 0.4) 0%, transparent 70%);
  filter: blur(20px);
  z-index: 1;
}
.hero-float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(17, 22, 38, 0.92);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  z-index: 3;
  animation: floatY 4s ease-in-out infinite;
}
.hero-float-1 { top: 12%; left: -20px; animation-delay: 0s; }
.hero-float-2 { bottom: 25%; right: -30px; animation-delay: 1s; }
.hero-float-3 { bottom: 8%; left: 10%; animation-delay: 2s; }
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.float-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 18px;
  flex-shrink: 0;
}
.float-icon.icon-price {
  background: linear-gradient(135deg, #ffc83d, #ff9f1c);
  color: #1a1a1a;
}
.float-icon.icon-shield {
  background: linear-gradient(135deg, #00d4ff, #0099cc);
  font-size: 14px;
}
.float-text strong {
  display: block;
  font-size: 14px;
  color: #fff;
  font-weight: 700;
}
.float-text span {
  font-size: 12px;
  color: var(--text-muted);
}
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  z-index: 2;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30%;
  background: #ff5a36;
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { top: 0; opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 1; }
  100% { top: 70%; opacity: 0; }
}

/* ===== Section Base ===== */
.section {
  padding: 120px 0;
  position: relative;
}
.section-header {
  max-width: 640px;
  margin-bottom: 64px;
}
.section-header-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.tag-num {
  color: #ff5a36;
  font-size: 16px;
}
.tag-line {
  width: 40px;
  height: 1px;
  background: var(--border);
}
.section-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
  color: #fff;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.section-desc-center {
  max-width: 600px;
  margin: 0 auto;
}
.text-gradient {
  background: linear-gradient(135deg, #ff5a36 0%, #ffc83d 50%, #00d4ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-red { color: #ff5a36; }
.text-yellow { color: #ffc83d; }

/* ===== Pain Points ===== */
.section-pain { background: var(--bg-darker); }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 80px;
}
.pain-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  transition: all 0.3s ease;
  position: relative;
}
.pain-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 90, 54, 0.3);
}
.pain-card.pain-featured {
  background: linear-gradient(180deg, rgba(255, 90, 54, 0.15) 0%, var(--bg-card) 100%);
  border-color: rgba(255, 90, 54, 0.4);
}
.pain-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.pain-icon svg { width: 28px; height: 28px; }
.pain-icon-red {
  background: rgba(255, 90, 54, 0.15);
  color: #ff5a36;
}
.pain-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.pain-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.pain-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 12px;
  background: linear-gradient(135deg, #ff5a36, #e04827);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
}

.pain-bottom {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}
.pain-quote {
  position: relative;
  padding: 40px;
  background: var(--bg-card-2);
  border-radius: 20px;
  border: 1px solid var(--border);
}
.quote-mark {
  position: absolute;
  top: 20px;
  left: 28px;
  font-size: 80px;
  font-family: Georgia, serif;
  color: rgba(255, 90, 54, 0.2);
  line-height: 1;
}
.pain-quote p {
  font-size: 20px;
  line-height: 1.8;
  color: #e6e8ec;
  position: relative;
  z-index: 1;
  padding-top: 20px;
}
.pain-quote strong {
  color: #ff5a36;
  font-weight: 700;
}
.pain-hero {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.pain-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pain-hero-text {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px;
  background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
  display: flex;
  flex-direction: column;
}
.ph-big {
  font-size: 36px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 2px;
}
.ph-small {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
}

/* ===== Brand Section ===== */
.section-brand { background: var(--bg-dark); }
.brand-intro {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.brand-logo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px 32px;
  text-align: center;
  position: sticky;
  top: 100px;
}
.brand-logo {
  width: 100%;
  max-width: 320px;
  margin: 0 auto 32px;
  border-radius: 12px;
}
.brand-name-exp {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.exp-en {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}
.exp-highlight { color: #ff5a36; }
.exp-cn {
  font-size: 14px;
  color: var(--text-muted);
}
.brand-personality {
  padding: 12px 0;
}
.bp-title {
  font-size: 28px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 8px;
}
.bp-sub {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}
.bp-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.bp-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: all 0.3s ease;
}
.bp-list li:hover {
  border-color: rgba(255, 90, 54, 0.3);
  transform: translateX(4px);
}
.bp-icon {
  color: #ff5a36;
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}
.bp-list strong {
  display: block;
  font-size: 16px;
  color: #fff;
  margin-bottom: 4px;
}
.bp-list span {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ===== Core Advantages ===== */
.section-advantage {
  background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}
.advantage-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 20px;
}
.adv-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.adv-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 90, 54, 0.3);
}
.adv-card-main {
  background: linear-gradient(180deg, rgba(255, 90, 54, 0.15) 0%, var(--bg-card) 100%);
  border-color: rgba(255, 90, 54, 0.4);
}
.adv-icon {
  width: 64px; height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-bottom: 24px;
}
.adv-icon svg { width: 32px; height: 32px; }
.adv-icon-1 { background: linear-gradient(135deg, #ff5a36, #ff9f1c); }
.adv-icon-2 { background: linear-gradient(135deg, #ffc83d, #ff9f1c); color: #1a1a1a; }
.adv-icon-3 { background: linear-gradient(135deg, #00d4ff, #0099cc); }
.adv-icon-4 { background: linear-gradient(135deg, #a855f7, #7c3aed); }
.adv-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.adv-lead {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 18px;
  line-height: 1.6;
}
.adv-detail {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}
.adv-detail li {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
}
.adv-detail span {
  color: #22c55e;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

/* ===== Service Flow ===== */
.section-service { background: var(--bg-dark); }
.service-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 20px;
  align-items: stretch;
}
.sv-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.sv-step:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 90, 54, 0.3);
}
.sv-step-visual {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 90, 54, 0.15), rgba(0, 212, 255, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  flex-shrink: 0;
}
.sv-step-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff5a36, #ff9f1c);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.sv-step-icon svg { width: 24px; height: 24px; }
.sv-step-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 14px;
  letter-spacing: 2px;
  color: #ff5a36;
  margin-bottom: 8px;
}
.sv-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.sv-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.sv-line {
  display: flex;
  align-items: center;
  color: rgba(255, 90, 54, 0.5);
}
.sv-line svg { width: 32px; height: 24px; }

/* ===== Supply Chain ===== */
.section-supply {
  background: var(--bg-darker);
}
.brand-logos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 64px;
}
.brand-logo-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 16px;
  text-align: center;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.brand-logo-item:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 90, 54, 0.3);
}
.bli-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
}
.bli-desc {
  font-size: 12px;
  color: var(--text-muted);
}

.supply-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sf-item {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: all 0.3s ease;
}
.sf-item:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 90, 54, 0.3);
}
.sf-icon {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.sf-icon svg { width: 28px; height: 28px; }
.sf-icon-1 { background: linear-gradient(135deg, #ff5a36, #e04827); }
.sf-icon-2 { background: linear-gradient(135deg, #22c55e, #16a34a); }
.sf-icon-3 { background: linear-gradient(135deg, #00d4ff, #0099cc); }
.sf-icon-4 { background: linear-gradient(135deg, #a855f7, #7c3aed); }
.sf-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.sf-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== Products Section ===== */
.section-products {
  background: var(--bg-darker);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 90, 54, 0.4);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.product-card-featured {
  border-color: rgba(255, 200, 61, 0.4);
  background: linear-gradient(180deg, rgba(255, 200, 61, 0.08) 0%, var(--bg-card) 30%);
}
.product-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-img img {
  transform: scale(1.05);
}
.product-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: linear-gradient(135deg, #ff5a36, #e04827);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 100px;
  box-shadow: 0 4px 12px rgba(255, 90, 54, 0.4);
}
.product-tag-gold {
  background: linear-gradient(135deg, #ffc83d, #ff9f1c);
  color: #1a1a1a;
}
.product-body {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.product-body h3 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.product-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}
.product-feats {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}
.product-feats li {
  font-size: 13px;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
}
.product-feats li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #22c55e;
  font-weight: 700;
}
.product-price {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  margin-bottom: 16px;
}
.pp-label {
  font-size: 13px;
  color: var(--text-muted);
}
.pp-value {
  font-size: 16px;
  color: var(--text-secondary);
}
.pp-value em {
  font-style: normal;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 32px;
  color: #ff5a36;
  font-weight: 700;
  margin: 0 2px;
}

/* ===== Store Network ===== */
.section-store { background: var(--bg-dark); }
.store-banner {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  margin-bottom: 60px;
  aspect-ratio: 16/7;
}
.store-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.store-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 26, 0.95) 0%, rgba(10, 14, 26, 0.4) 60%, transparent 100%);
}
.store-banner-info {
  position: absolute;
  bottom: 40px;
  left: 40px;
  right: 40px;
  display: flex;
  align-items: center;
  gap: 48px;
  z-index: 1;
}
.sbi-item {
  display: flex;
  flex-direction: column;
}
.sbi-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 48px;
  font-weight: 700;
  color: #ffc83d;
  line-height: 1;
}
.sbi-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 6px;
}
.sbi-divider {
  width: 1px;
  height: 50px;
  background: rgba(255, 255, 255, 0.15);
}

.store-standards {
  margin-bottom: 48px;
}
.ss-title {
  text-align: center;
  font-size: 28px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 32px;
}
.ss-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.ss-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
  transition: all 0.3s ease;
}
.ss-item:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 255, 0.3);
}
.ss-icon {
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(168, 85, 247, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #00d4ff;
}
.ss-icon svg { width: 28px; height: 28px; }
.ss-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.ss-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.store-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.store-cta-note {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== FAQ Section ===== */
.section-faq {
  background: var(--bg-darker);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.3s ease;
}
.faq-item.faq-open {
  border-color: rgba(255, 90, 54, 0.4);
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  text-align: left;
  transition: all 0.2s ease;
  gap: 20px;
}
.faq-q:hover {
  background: rgba(255, 255, 255, 0.03);
}
.faq-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(255, 90, 54, 0.15);
  color: #ff5a36;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 300;
  flex-shrink: 0;
  transition: all 0.3s ease;
}
.faq-item.faq-open .faq-icon {
  transform: rotate(45deg);
  background: linear-gradient(135deg, #ff5a36, #e04827);
  color: #fff;
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 28px;
}
.faq-item.faq-open .faq-a {
  max-height: 400px;
  padding: 0 28px 24px;
}
.faq-a p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.faq-a strong {
  color: #ffc83d;
  font-weight: 700;
}
  letter-spacing: 2px;
  line-height: 1;
}
.sh-small {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.store-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.store-cta-note {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== Brand stats row ===== */
.bp-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.bp-stat {
  text-align: center;
  padding: 16px 12px;
  background: var(--bg-card-2);
  border-radius: 12px;
  border: 1px solid var(--border);
}
.bp-stat-num {
  display: block;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: #ff5a36;
  line-height: 1;
  margin-bottom: 4px;
}
.bp-stat-label {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== Contact ===== */
.section-contact {
  background: var(--bg-darker);
  position: relative;
}
.section-contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 10% 20%, rgba(255, 90, 54, 0.1) 0%, transparent 40%),
    radial-gradient(ellipse at 90% 80%, rgba(0, 212, 255, 0.08) 0%, transparent 40%);
}
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  position: relative;
  z-index: 1;
}
.contact-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.8;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.ci-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: all 0.3s ease;
}
.ci-item:hover {
  border-color: rgba(255, 90, 54, 0.3);
  transform: translateX(4px);
}
.ci-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 90, 54, 0.2), rgba(255, 90, 54, 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ff5a36;
  flex-shrink: 0;
}
.ci-icon svg { width: 22px; height: 22px; }
.ci-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.ci-value {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
}
.contact-form h3 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  color: #fff;
  transition: all 0.2s ease;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #ff5a36;
  background: rgba(255, 90, 54, 0.05);
}
.form-group textarea {
  resize: vertical;
  min-height: 100px;
}
.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%239ba3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border);
  padding: 60px 0 24px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.footer-logo {
  height: 44px;
  width: auto;
  border-radius: 8px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.footer-hotline {
  margin-top: 8px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-hotline span {
  font-size: 12px;
  color: var(--text-muted);
}
.footer-hotline strong {
  font-size: 20px;
  font-weight: 700;
  color: #ff5a36;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}
.footer-col a:hover { color: #ff5a36; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color 0.2s ease;
}
.footer-links a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; max-width: 320px; margin: 0 auto; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .pain-bottom { grid-template-columns: 1fr; }
  .brand-intro { grid-template-columns: 1fr; }
  .brand-logo-card { position: static; }
  .brand-logos { grid-template-columns: repeat(3, 1fr); }
  .supply-features { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .service-flow { grid-template-columns: 1fr 1fr; }
  .sv-line { display: none; }
  .product-grid { grid-template-columns: 1fr; }
  .ss-grid { grid-template-columns: repeat(2, 1fr); }
  .store-banner-info { flex-wrap: wrap; gap: 24px; }
  .sbi-divider { display: none; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .nav-inner { padding: 0 20px; }
  .section { padding: 80px 0; }
  .section-header { margin-bottom: 40px; }
  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero-title { font-size: 44px; letter-spacing: -1px; }
  .hero-subtitle { font-size: 18px; }
  .hero-stats { gap: 16px; flex-wrap: wrap; }
  .stat-divider { display: none; }
  .hero-float { display: none; }
  .pain-grid { grid-template-columns: 1fr; }
  .brand-logos { grid-template-columns: repeat(2, 1fr); }
  .supply-features { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav-actions .btn { padding: 8px 14px; font-size: 12px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .advantage-grid { grid-template-columns: 1fr; }
  .service-flow { grid-template-columns: 1fr; }
  .ss-grid { grid-template-columns: 1fr; }
  .sbi-num { font-size: 32px; }
  .faq-q { font-size: 14px; padding: 18px 20px; }
  .store-banner-info { left: 20px; bottom: 20px; gap: 16px; }
}