:root {
  --brand: #c8102e;
  --brand-dark: #8f0b20;
  --brand-light: #fde8ec;
  --brand-glow: rgba(200, 16, 46, 0.35);
  --ink: #16161a;
  --ink-2: #45454d;
  --ink-3: #7a7a85;
  --bg: #ffffff;
  --bg-2: #f7f7f9;
  --bg-3: #eeeef1;
  --line: #e3e3e8;
  --glass: rgba(255, 255, 255, 0.62);
  --glass-border: rgba(255, 255, 255, 0.55);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(18, 18, 24, 0.08);
  --shadow-lg: 0 18px 48px rgba(18, 18, 24, 0.14);
  --max: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

[data-theme="dark"] {
  --brand: #ff5c72;
  --brand-dark: #c8102e;
  --brand-light: #3a1218;
  --brand-glow: rgba(255, 92, 114, 0.35);
  --ink: #f1f1f4;
  --ink-2: #c4c4cc;
  --ink-3: #8f8f9a;
  --bg: #111114;
  --bg-2: #19191d;
  --bg-3: #232329;
  --line: #2c2c33;
  --glass: rgba(26, 26, 31, 0.62);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.6);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease);
  overflow-x: hidden;
}

a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

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

img, svg {
  max-width: 100%;
  display: block;
}

::selection {
  background: var(--brand);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand);
  color: #fff;
  padding: 10px 16px;
  z-index: 999;
  border-radius: 0 0 8px 0;
}

.skip:focus {
  left: 8px;
  top: 8px;
}

/* ---------------- 顶部条 ---------------- */
.topbar {
  background: linear-gradient(90deg, #1a1a1f 0%, #2b2b33 100%);
  color: #e6e6ea;
  font-size: 13px;
  padding: 7px 0;
  letter-spacing: 0.2px;
}

.topbar .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 16px;
}

.topbar a {
  color: #e6e6ea;
}

.topbar a:hover {
  color: #fff;
}

/* ---------------- 导航 ---------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s var(--ease), background-color 0.3s var(--ease);
}

.nav.scrolled {
  box-shadow: var(--shadow);
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 19px;
  color: var(--ink);
  letter-spacing: -0.3px;
}

.logo:hover {
  color: var(--brand);
}

.logo svg {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  transition: transform 0.35s var(--ease);
}

.logo:hover svg {
  transform: rotate(-6deg) scale(1.06);
}

.logo small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.6px;
  line-height: 1.3;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--ink-2);
  font-size: 15px;
  font-weight: 500;
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease), transform 0.22s var(--ease);
}

.nav-links a:hover {
  background: var(--brand-light);
  color: var(--brand);
  transform: translateY(-1px);
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--ink-2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.icon-btn:hover {
  background: var(--brand-light);
  color: var(--brand);
  border-color: var(--brand);
  transform: translateY(-1px);
}

.icon-btn:active {
  transform: scale(0.95);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.menu-toggle {
  display: none;
}

/* ---------------- 搜索 ---------------- */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box input {
  width: 200px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--bg-2);
  color: var(--ink);
  padding: 0 40px 0 13px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: width 0.28s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.search-box input::placeholder {
  color: var(--ink-3);
}

.search-box input:focus {
  border-color: var(--brand);
  background: var(--bg);
  width: 240px;
  box-shadow: 0 0 0 3px var(--brand-glow);
}

.search-box button {
  position: absolute;
  right: 4px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--ink-3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.search-box button:hover {
  color: var(--brand);
  background: var(--brand-light);
}

.search-box button svg {
  width: 18px;
  height: 18px;
}

/* ---------------- Banner ---------------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, #c8102e 0%, #8f0b20 55%, #52040f 100%);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 78% 18%, rgba(255, 255, 255, 0.16), transparent 52%),
    radial-gradient(circle at 12% 88%, rgba(255, 255, 255, 0.1), transparent 46%),
    radial-gradient(circle at 50% 50%, rgba(255, 122, 140, 0.18), transparent 60%);
  animation: heroFloat 16s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: -1;
}

@keyframes heroFloat {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-2%, 2%, 0) scale(1.06); }
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 40%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 20%, transparent 78%);
  pointer-events: none;
  z-index: -1;
}

.slides {
  position: relative;
  min-height: 440px;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.7s var(--ease), visibility 0.7s var(--ease);
  display: flex;
  align-items: center;
  padding: 64px 0;
}

.slide.active {
  opacity: 1;
  visibility: visible;
  position: relative;
}

.slide .wrap {
  width: 100%;
  position: relative;
  z-index: 2;
}

.slide.active .wrap > * {
  animation: slideUp 0.7s var(--ease) both;
}

.slide.active .wrap > *:nth-child(2) { animation-delay: 0.08s; }
.slide.active .wrap > *:nth-child(3) { animation-delay: 0.16s; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide h1,
.slide h2 {
  font-size: 42px;
  line-height: 1.22;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: -0.8px;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.18);
}

.slide h1 span,
.slide h2 span {
  color: #ffd9df;
  position: relative;
  white-space: nowrap;
}

.slide h1 span::after,
.slide h2 span::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 8px;
  background: rgba(255, 217, 223, 0.28);
  border-radius: 4px;
  z-index: -1;
}

.slide p {
  font-size: 17px;
  max-width: 660px;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 28px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 11px;
  font-weight: 600;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), background-color 0.22s var(--ease), color 0.22s var(--ease);
}

.btn-primary {
  background: #fff;
  color: var(--brand);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.btn-primary:hover {
  background: #ffe9ed;
  color: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.24);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.42);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.24);
  color: #fff;
  transform: translateY(-2px);
}

.dots {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}

.dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.42);
  cursor: pointer;
  padding: 0;
  transition: width 0.3s var(--ease), background-color 0.3s var(--ease);
}

.dots button:hover {
  background: rgba(255, 255, 255, 0.7);
}

.dots button.active {
  background: #fff;
  width: 28px;
  border-radius: 6px;
}

/* ---------------- 数据条 ---------------- */
.stats {
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  padding: 38px 0;
  position: relative;
  overflow: hidden;
}

.stats .grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stats .grid > div {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: transform 0.25s var(--ease);
}

.stats .grid > div:hover {
  transform: translateY(-3px);
}

.stat-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.1;
  letter-spacing: -1px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 14px;
  color: var(--ink-3);
  margin-top: 6px;
}

/* ---------------- 通用区块 ---------------- */
section {
  padding: 68px 0;
}

.sec-head {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 46px;
}

.sec-head .tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-light);
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 14px;
  letter-spacing: 0.6px;
}

.sec-head h2 {
  font-size: 31px;
  font-weight: 800;
  line-height: 1.32;
  margin-bottom: 14px;
  letter-spacing: -0.6px;
}

.sec-head p {
  font-size: 16px;
  color: var(--ink-2);
}

.bg-alt {
  background: var(--bg-2);
}

/* ---------------- 卡片网格 ---------------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
  position: relative;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand);
}

.card .ico {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand-light), var(--bg-3));
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: transform 0.3s var(--ease);
}

.card:hover .ico {
  transform: scale(1.08) rotate(-4deg);
}

.card .ico svg {
  width: 26px;
  height: 26px;
}

.card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.2px;
}

.card p {
  font-size: 15px;
  color: var(--ink-2);
}

/* ---------------- 关于 ---------------- */
.about {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-text h2 {
  font-size: 31px;
  font-weight: 800;
  margin-bottom: 18px;
  line-height: 1.3;
  letter-spacing: -0.6px;
}

.about-text p {
  color: var(--ink-2);
  margin-bottom: 14px;
  font-size: 15.5px;
}

.about-figure {
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow);
}

.about-figure .row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--ink-2);
  margin-bottom: 7px;
  font-weight: 500;
}

.about-figure .bar {
  height: 10px;
  border-radius: 6px;
  background: var(--bg-3);
  overflow: hidden;
}

.about-figure .bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--brand), #ff7a8c);
  border-radius: 6px;
  transform-origin: left center;
  animation: barGrow 1.1s var(--ease) both;
}

@keyframes barGrow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ---------------- 时间线 ---------------- */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand), transparent);
  border-radius: 2px;
}

.timeline .item {
  position: relative;
  padding-bottom: 26px;
}

.timeline .item:last-child {
  padding-bottom: 0;
}

.timeline .item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--brand);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.timeline .item:hover::before {
  transform: scale(1.2);
  box-shadow: 0 0 0 5px var(--brand-glow);
}

.timeline .year {
  font-weight: 800;
  color: var(--brand);
  font-size: 15px;
  margin-bottom: 4px;
  letter-spacing: 0.3px;
}

.timeline .item p {
  font-size: 15px;
  color: var(--ink-2);
}

/* ---------------- 产品 ---------------- */
.prod {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.prod-item {
  display: flex;
  gap: 18px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.prod-item:hover {
  transform: translateY(-4px);
  border-color: var(--brand);
  box-shadow: var(--shadow-lg);
}

.prod-item .pico {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), #ff7a8c);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 8px 18px var(--brand-glow);
  transition: transform 0.3s var(--ease);
}

.prod-item:hover .pico {
  transform: rotate(-6deg) scale(1.06);
}

.prod-item .pico svg {
  width: 28px;
  height: 28px;
}

.prod-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.prod-item p {
  font-size: 14.5px;
  color: var(--ink-2);
}

/* ---------------- 解决方案 ---------------- */
.sol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.sol-item {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.sol-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--brand), #ff7a8c);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.sol-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.sol-item:hover::before {
  transform: scaleX(1);
}

.sol-item h3 {
  font-size: 18px;
  margin-bottom: 10px;
  margin-top: 6px;
  letter-spacing: -0.2px;
}

.sol-item p {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-bottom: 14px;
}

.sol-item ul {
  list-style: none;
  font-size: 14px;
  color: var(--ink-2);
}

.sol-item ul li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 7px;
}

.sol-item ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--brand);
  transition: transform 0.2s var(--ease);
}

.sol-item:hover ul li::before {
  transform: rotate(45deg);
}

/* ---------------- 案例 ---------------- */
.case {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.case-item {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.case-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-color: var(--brand);
}

.case-item .thumb {
  height: 152px;
  background: linear-gradient(135deg, var(--brand-light), var(--bg-3));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  position: relative;
  overflow: hidden;
}

.case-item .thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.5), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}

.case-item:hover .thumb::after {
  opacity: 1;
}

.case-item .thumb svg {
  width: 64px;
  height: 64px;
  opacity: 0.85;
  transition: transform 0.4s var(--ease);
}

.case-item:hover .thumb svg {
  transform: scale(1.12);
}

.case-body {
  padding: 22px;
}

.case-body h3 {
  font-size: 17px;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.case-body p {
  font-size: 14px;
  color: var(--ink-2);
  margin-bottom: 14px;
}

.case-meta {
  font-size: 12.5px;
  color: var(--ink-3);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---------------- 评价 ---------------- */
.quotes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.quote {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
}

.quote:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand);
}

.quote::before {
  content: "\201C";
  position: absolute;
  top: 6px;
  right: 20px;
  font-size: 68px;
  color: var(--brand-light);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1;
  pointer-events: none;
}

.quote p {
  font-size: 15px;
  color: var(--ink-2);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.quote .who {
  display: flex;
  align-items: center;
  gap: 12px;
}

.quote .avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), #ff7a8c);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 6px 14px var(--brand-glow);
}

.quote .who strong {
  display: block;
  font-size: 14.5px;
}

.quote .who span {
  font-size: 12.5px;
  color: var(--ink-3);
}

/* ---------------- 文章 ---------------- */
.articles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.article {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
  display: flex;
  flex-direction: column;
}

.article:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.article .cat {
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-light);
  padding: 3px 11px;
  border-radius: 12px;
  align-self: flex-start;
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}

.article h3 {
  font-size: 18px;
  margin-bottom: 10px;
  line-height: 1.45;
  letter-spacing: -0.2px;
}

.article h3 a {
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

.article h3 a:hover {
  color: var(--brand);
}

.article .sum {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-bottom: 16px;
  flex: 1;
}

.article .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--ink-3);
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.article .more {
  color: var(--brand);
  font-weight: 600;
  white-space: nowrap;
  transition: transform 0.22s var(--ease);
  display: inline-block;
}

.article:hover .more {
  transform: translateX(4px);
}

/* ---------------- FAQ ---------------- */
.faq {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  background: var(--bg);
  overflow: hidden;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.faq-item:hover {
  border-color: var(--brand);
}

.faq-item.open {
  border-color: var(--brand);
  box-shadow: var(--shadow);
}

.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 19px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  line-height: 1.55;
  transition: color 0.2s var(--ease);
}

.faq-q:hover {
  color: var(--brand);
}

.faq-q .arrow {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  transition: transform 0.32s var(--ease);
  color: var(--brand);
}

.faq-item.open .faq-q .arrow {
  transform: rotate(180deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.38s var(--ease);
}

.faq-a .inner {
  padding: 0 22px 20px;
  font-size: 15px;
  color: var(--ink-2);
}

/* ---------------- HowTo ---------------- */
.howto {
  max-width: 920px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 20px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 16px;
  background: var(--bg);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.step:hover {
  transform: translateX(4px);
  border-color: var(--brand);
  box-shadow: var(--shadow);
}

.step .num {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), #ff7a8c);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 17px;
  box-shadow: 0 8px 18px var(--brand-glow);
  font-variant-numeric: tabular-nums;
}

.step h3 {
  font-size: 18px;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.step p {
  font-size: 15px;
  color: var(--ink-2);
}

/* ---------------- 团队 ---------------- */
.team {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.member {
  text-align: center;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 18px;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.member:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.member .ava {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--brand), #ff7a8c);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  font-weight: 800;
  box-shadow: 0 10px 24px var(--brand-glow);
  transition: transform 0.35s var(--ease);
}

.member:hover .ava {
  transform: scale(1.08) rotate(-5deg);
}

.member h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.member .role {
  font-size: 13px;
  color: var(--brand);
  margin-bottom: 8px;
  font-weight: 600;
}

.member p {
  font-size: 13px;
  color: var(--ink-3);
}

/* ---------------- 联系 ---------------- */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info .item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info .item .ci {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--brand-light);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease);
}

.contact-info .item:hover .ci {
  transform: scale(1.08);
  background: var(--brand);
  color: #fff;
}

.contact-info .item .ci svg {
  width: 22px;
  height: 22px;
}

.contact-info .item h3 {
  font-size: 15px;
  margin-bottom: 4px;
}

.contact-info .item p {
  font-size: 14.5px;
  color: var(--ink-2);
}

.map-box {
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: var(--shadow);
}

.map-box h3 {
  font-size: 18px;
  margin-bottom: 14px;
}

.map-box p {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-bottom: 10px;
  padding-left: 18px;
  position: relative;
}

.map-box p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
}

.map-box .badge {
  display: inline-block;
  font-size: 13px;
  background: var(--brand-light);
  color: var(--brand);
  padding: 7px 16px;
  border-radius: 20px;
  font-weight: 600;
  margin-top: 14px;
  align-self: flex-start;
}

/* ---------------- 页脚 ---------------- */
footer {
  background: #141418;
  color: #c4c4cc;
  padding: 60px 0 0;
  font-size: 14px;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(200, 16, 46, 0.16), transparent 70%);
  pointer-events: none;
}

[data-theme="dark"] footer {
  background: #0a0a0c;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.foot-brand .logo {
  color: #fff;
  margin-bottom: 16px;
}

.foot-brand .logo:hover {
  color: #ffd9df;
}

.foot-brand .logo small {
  color: #8f8f9a;
}

.foot-brand p {
  font-size: 13.5px;
  line-height: 1.85;
  color: #9a9aa4;
  margin-bottom: 14px;
}

.foot-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.foot-col ul {
  list-style: none;
}

.foot-col ul li {
  margin-bottom: 11px;
}

.foot-col ul a {
  color: #9a9aa4;
  font-size: 13.5px;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.foot-col ul a:hover {
  color: #fff;
  padding-left: 4px;
}

.foot-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: #7a7a85;
  position: relative;
}

.foot-bottom a {
  color: #9a9aa4;
}

.foot-bottom a:hover {
  color: #fff;
}

.foot-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

/* ---------------- 返回顶部 ---------------- */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px var(--brand-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.9);
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease), transform 0.3s var(--ease), background-color 0.2s var(--ease);
  z-index: 90;
}

.to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.to-top:hover {
  background: var(--brand-dark);
  transform: translateY(-3px) scale(1.05);
}

.to-top svg {
  width: 22px;
  height: 22px;
}

/* ---------------- 面包屑 ---------------- */
.breadcrumb {
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  padding: 13px 0;
  font-size: 13.5px;
  color: var(--ink-3);
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 6px;
  color: var(--ink-3);
}

.breadcrumb a {
  color: var(--ink-2);
}

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

/* ---------------- 锚点导航 ---------------- */
.anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 24px;
}

.anchor-nav a {
  font-size: 13.5px;
  padding: 7px 15px;
  border-radius: 20px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--ink-2);
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.anchor-nav a:hover {
  background: var(--brand-light);
  color: var(--brand);
  border-color: var(--brand);
  transform: translateY(-2px);
}

/* ---------------- 滚动动画 ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
  will-change: opacity, transform;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
  .nav-links a {
    padding: 8px 9px;
    font-size: 14px;
  }
  .search-box input {
    width: 170px;
  }
  .search-box input:focus {
    width: 200px;
  }
}

@media (max-width: 960px) {
  .grid-3,
  .sol,
  .case,
  .quotes,
  .team {
    grid-template-columns: repeat(2, 1fr);
  }
  .about,
  .contact {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .foot-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .stats .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .articles {
    grid-template-columns: 1fr;
  }
  .prod {
    grid-template-columns: 1fr;
  }
  .slide h1,
  .slide h2 {
    font-size: 34px;
  }
}

@media (max-width: 768px) {
  html {
    scroll-padding-top: 72px;
  }
  .nav .wrap {
    height: 60px;
  }
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--glass);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    transform: translateY(-130%);
    transition: transform 0.35s var(--ease);
    z-index: 99;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }
  .nav-links.open {
    transform: translateY(0);
  }
  .nav-links a {
    padding: 13px 16px;
    font-size: 15px;
  }
  .menu-toggle {
    display: flex;
  }
  .search-box {
    display: none;
  }
  .logo {
    font-size: 17px;
  }
  .logo svg {
    width: 34px;
    height: 34px;
  }
  .topbar {
    font-size: 12px;
  }
  .topbar .wrap {
    justify-content: center;
    text-align: center;
  }
  .topbar .wrap span:nth-child(2) {
    display: none;
  }
  .slides {
    min-height: 400px;
  }
  .slide {
    padding: 48px 0 64px;
  }
  .slide h1,
  .slide h2 {
    font-size: 27px;
    letter-spacing: -0.4px;
  }
  .slide p {
    font-size: 15px;
  }
  .btn {
    padding: 11px 20px;
    font-size: 14px;
  }
  section {
    padding: 46px 0;
  }
  .sec-head {
    margin-bottom: 34px;
  }
  .sec-head h2 {
    font-size: 24px;
  }
  .sec-head p {
    font-size: 15px;
  }
  .grid-3,
  .sol,
  .case,
  .quotes,
  .team,
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .about-text h2 {
    font-size: 24px;
  }
  .stats {
    padding: 28px 0;
  }
  .stats .grid {
    gap: 18px;
  }
  .stat-num {
    font-size: 27px;
  }
  .stat-label {
    font-size: 13px;
  }
  .card,
  .prod-item,
  .sol-item,
  .quote,
  .article,
  .step,
  .member {
    padding: 22px;
  }
  .step {
    gap: 16px;
  }
  .step .num {
    width: 40px;
    height: 40px;
    font-size: 15px;
  }
  .foot-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .foot-bottom {
    flex-direction: column;
    text-align: center;
  }
  .to-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
  .anchor-nav {
    gap: 6px;
  }
  .anchor-nav a {
    font-size: 12.5px;
    padding: 6px 12px;
  }
}

@media (max-width: 420px) {
  .slide h1,
  .slide h2 {
    font-size: 23px;
  }
  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-cta .btn {
    justify-content: center;
  }
  .stats .grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .nav,
  .topbar,
  .to-top,
  .hero,
  .dots {
    display: none !important;
  }
  body {
    color: #000;
    background: #fff;
  }
  a {
    color: #000;
    text-decoration: underline;
  }
}