/* ===== 赞相科技 - 全局样式 ===== */

:root {
  /* 背景与前景 */
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-2: #f1f4f8;
  --ink: #111827;
  --muted: #667085;
  --soft: #98a2b3;
  --line: #e5e7eb;

  /* 暗色 */
  --dark: #08090d;
  --dark-2: #111318;
  --dark-card: #14161c;
  --dark-line: rgba(255, 255, 255, .12);

  /* 品牌色 */
  --white: #ffffff;
  --gold: #f59e0b;
  --gold-2: #d97706;
  --gold-3: #b45309;
  --gold-soft: #fff7ed;
  --gold-glow: rgba(245, 158, 11, .35);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
  --shadow: 0 20px 60px rgba(15, 23, 42, .10);
  --shadow-soft: 0 10px 28px rgba(15, 23, 42, .07);
  --shadow-lg: 0 28px 80px rgba(15, 23, 42, .14);

  /* 圆角 */
  --radius-xs: 10px;
  --radius-sm: 16px;
  --radius: 24px;
  --radius-lg: 30px;
  --radius-full: 999px;

  /* 布局 */
  --container: 1120px;

  /*
   * 字体策略：全部使用免费开源 / 系统预装字体，规避商业字体版权风险。
   * Noto Sans SC —— SIL Open Font License 1.1（思源黑体开源版本）
   * PingFang SC  —— macOS / iOS 系统预装
   * Microsoft YaHei —— Windows 系统预装
   * 所有字体均通过 CSS font-family 引用用户本地字体，不涉及字体文件分发。
   */
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Consolas", "Courier New", monospace;
}

/* ===== 重置与基础 ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: .01em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease, opacity .2s ease;
}

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

::selection {
  background: rgba(245, 158, 11, .22);
  color: #111827;
}

/* ===== 工具类 ===== */
.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

/* 无障碍跳过链接 */
.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-xs);
  z-index: 99;
  font-weight: 700;
}

.skip-link:focus {
  left: 16px;
}

/* ===== 页头导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 251, .88);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid rgba(17, 24, 39, .07);
  transition: box-shadow .3s ease;
}

.site-header.scrolled {
  box-shadow: 0 2px 24px rgba(15, 23, 42, .08);
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -.02em;
  transition: opacity .2s ease;
}

.brand:hover {
  opacity: .82;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
}

.brand span {
  font-size: 18px;
}

/* 导航链接 */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: #4b5563;
  padding: 9px 14px;
  border-radius: var(--radius-full);
  transition: all .22s ease;
  position: relative;
  letter-spacing: .02em;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, .72);
  color: #111827;
  box-shadow: var(--shadow-sm);
}

.nav-links a.active {
  background: #fff;
  color: #111827;
  box-shadow: 0 4px 14px rgba(15, 23, 42, .08);
  font-weight: 700;
}

.nav-cta {
  border: 1px solid rgba(245, 158, 11, .35) !important;
  background: #fff7ed !important;
  color: #92400e !important;
  font-weight: 700 !important;
  margin-left: 4px;
}

.nav-cta:hover {
  background: #fffbeb !important;
  border-color: rgba(245, 158, 11, .5) !important;
  box-shadow: 0 2px 12px rgba(245, 158, 11, .14) !important;
}

/* 移动端菜单按钮 */
.menu-btn {
  display: none;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 9px 13px;
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: all .2s ease;
}

.menu-btn:hover {
  background: #f9fafb;
}

/* ===== Hero 区域 ===== */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 12% -8%, rgba(245, 158, 11, .26), transparent 38%),
    radial-gradient(ellipse 50% 50% at 88% 90%, rgba(245, 158, 11, .08), transparent 50%),
    linear-gradient(160deg, #07080c 0%, #111318 48%, #1b1307 100%);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

/* Hero 装饰线 */
.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, .18), transparent);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, .88fr);
  gap: 56px;
  align-items: center;
  min-height: 700px;
  padding: 90px 0;
}

/* 眼眉标签 */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .10);
  color: #fef3c7;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .03em;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 16px rgba(245, 158, 11, .8);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,
  100% {
    box-shadow: 0 0 16px rgba(245, 158, 11, .8);
    transform: scale(1);
  }

  50% {
    box-shadow: 0 0 28px rgba(245, 158, 11, 1);
    transform: scale(1.3);
  }
}

/* 标题体系 */
h1,
h2,
h3,
p {
  margin-top: 0;
}

.hero h1 {
  font-size: clamp(42px, 5.8vw, 68px);
  line-height: 1.06;
  letter-spacing: -.05em;
  margin: 0 0 24px;
  font-weight: 900;
  background: linear-gradient(135deg, #ffffff 0%, #e5e7eb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .68);
  max-width: 640px;
  margin: 0 0 32px;
  letter-spacing: .02em;
}

/* 按钮区 */
.actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 15px;
  font-family: var(--font-sans);
  letter-spacing: .02em;
  transition: all .25s cubic-bezier(.4, 0, .2, 1);
  white-space: nowrap;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(.97);
}

.btn-primary {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  color: #111827;
  box-shadow: 0 12px 32px rgba(245, 158, 11, .28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(245, 158, 11, .38);
}

.btn-dark {
  background: #111827;
  color: #fff;
}

.btn-dark:hover {
  background: #1f2937;
}

.btn-ghost {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .14);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .24);
}

.btn-light {
  background: #fff;
  color: #111827;
  border-color: #fff;
}

.btn-light:hover {
  background: #f9fafb;
}

.btn-outline {
  background: #fff;
  border-color: var(--line);
  color: #111827;
}

.btn-outline:hover {
  border-color: #d1d5db;
  box-shadow: var(--shadow-sm);
}

.hero-note {
  margin-top: 22px;
  color: rgba(255, 255, 255, .44);
  font-size: 13px;
  letter-spacing: .04em;
  font-weight: 600;
}

/* ===== 控制台示意卡片 ===== */
.console {
  position: relative;
  border: 1px solid rgba(255, 255, 255, .12);
  background: linear-gradient(180deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .035));
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow:
    0 28px 90px rgba(0, 0, 0, .33),
    inset 0 1px 0 rgba(255, 255, 255, .10);
  backdrop-filter: blur(8px);
}

.console::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at 18% 0, rgba(245, 158, 11, .28), transparent 32%);
  pointer-events: none;
}

.console-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  position: relative;
}

.console-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 15px;
}

.console-title img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.status {
  font-size: 12px;
  color: #fed7aa;
  background: rgba(245, 158, 11, .12);
  border: 1px solid rgba(245, 158, 11, .20);
  padding: 5px 10px;
  border-radius: var(--radius-full);
  font-weight: 700;
  letter-spacing: .02em;
}

.console-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 18px;
  position: relative;
}

.console-card {
  background: rgba(8, 9, 13, .62);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: all .25s ease;
}

.console-card:hover {
  background: rgba(8, 9, 13, .78);
  border-color: rgba(245, 158, 11, .18);
  transform: translateY(-1px);
}

.console-card b {
  display: block;
  font-size: 18px;
  margin-bottom: 6px;
  letter-spacing: -.01em;
}

.console-card span {
  font-size: 13px;
  color: rgba(255, 255, 255, .52);
  line-height: 1.6;
}

/* 流程条 */
.flow {
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(245, 158, 11, .08);
  border: 1px solid rgba(245, 158, 11, .14);
}

.flow-lines {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 10px;
  align-items: center;
}

.flow-item {
  min-height: 66px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .07);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  color: rgba(255, 255, 255, .78);
  padding: 12px 10px;
  transition: all .25s ease;
}

.flow-item:hover {
  background: rgba(255, 255, 255, .10);
  border-color: rgba(245, 158, 11, .20);
}

.arrow {
  color: #fbbf24;
  font-weight: 900;
  font-size: 18px;
}

/* ===== 区块通用 ===== */
.section {
  padding: 108px 0;
}

.section-sm {
  padding: 76px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 48px;
}

.kicker {
  display: inline-flex;
  margin-bottom: 14px;
  color: #b45309;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-full);
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.section h2 {
  font-size: clamp(32px, 4.2vw, 48px);
  line-height: 1.14;
  letter-spacing: -.035em;
  margin: 0 0 16px;
  font-weight: 800;
}

.section-head p {
  font-size: 17px;
  color: var(--muted);
  margin: 0;
  line-height: 1.8;
  letter-spacing: .015em;
}

/* ===== 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: 22px;
}

/* ===== 卡片 ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  transition: all .3s cubic-bezier(.4, 0, .2, 1);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: rgba(245, 158, 11, .14);
}

.card h3 {
  font-size: 22px;
  line-height: 1.32;
  margin: 0 0 12px;
  letter-spacing: -.02em;
  font-weight: 800;
}

.card p {
  color: var(--muted);
  margin: 0;
  line-height: 1.78;
  letter-spacing: .015em;
}

.card .icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #fff7ed, #fffbeb);
  color: #b45309;
  font-weight: 900;
  font-size: 17px;
  margin-bottom: 20px;
  border: 1px solid rgba(245, 158, 11, .16);
}

/* 链接卡片 */
.link-card {
  position: relative;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.link-card .go {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  color: #b45309;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .02em;
  transition: gap .25s ease;
}

.link-card:hover .go {
  gap: 10px;
}

/* ===== 暗色区块 ===== */
.dark-band {
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(245, 158, 11, .05), transparent 60%),
    var(--dark);
  color: #fff;
  position: relative;
}

.dark-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .06), transparent);
  pointer-events: none;
}

.dark-band .section-head p {
  color: rgba(255, 255, 255, .62);
}

.dark-band .kicker {
  background: rgba(245, 158, 11, .12);
  border-color: rgba(245, 158, 11, .22);
  color: #fbbf24;
}

.dark-card {
  background: linear-gradient(180deg, #151820, #0d0f14);
  border-color: rgba(255, 255, 255, .08);
  box-shadow: none;
}

.dark-card:hover {
  border-color: rgba(245, 158, 11, .22);
  background: linear-gradient(180deg, #181b24, #101217);
  box-shadow: 0 12px 40px rgba(0, 0, 0, .28);
}

.dark-card p {
  color: rgba(255, 255, 255, .58);
}

.dark-card h3 {
  color: #fff;
}

/* ===== 标签列表 ===== */
.pill-list {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.pill {
  display: inline-flex;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  background: #fff;
  border: 1px solid var(--line);
  color: #475467;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  transition: all .2s ease;
}

.pill:hover {
  border-color: #d1d5db;
  background: #f9fafb;
}

.dark-band .pill {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .10);
  color: rgba(255, 255, 255, .72);
}

.dark-band .pill:hover {
  background: rgba(255, 255, 255, .12);
}

/* ===== 分栏布局 ===== */
.split {
  display: grid;
  grid-template-columns: .86fr 1.14fr;
  gap: 60px;
  align-items: start;
}

/* ===== 列表 ===== */
.list {
  display: grid;
  gap: 14px;
}

.list-item {
  display: flex;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 22px;
  transition: all .25s ease;
}

.list-item:hover {
  box-shadow: var(--shadow);
  border-color: rgba(245, 158, 11, .12);
  transform: translateX(4px);
}

.list-item .num {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: linear-gradient(135deg, #111827, #1f2937);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 15px;
  flex: none;
}

.list-item h3 {
  font-size: 18px;
  margin: 0 0 6px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.list-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

/* ===== 联系我们区块 ===== */
.contact-section {
  background: linear-gradient(160deg, #111318, #1f1708);
  color: #fff;
  position: relative;
}

.contact-box {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 28px;
  align-items: stretch;
}

.contact-card {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(4px);
}

.contact-card h2 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.16;
  margin: 0 0 14px;
  font-weight: 800;
  letter-spacing: -.03em;
}

.contact-card>p {
  color: rgba(255, 255, 255, .64);
  line-height: 1.78;
  margin: 0 0 0;
}

.contact-lines {
  display: grid;
  gap: 10px;
  margin: 26px 0;
}

.contact-line {
  display: flex;
  gap: 12px;
  align-items: center;
  color: #fff;
  font-weight: 750;
  font-size: 16px;
  padding: 8px 0;
  transition: opacity .2s ease;
}

.contact-line:hover {
  opacity: .8;
}

.contact-line span:first-child {
  color: rgba(255, 255, 255, .44);
  min-width: 60px;
  font-weight: 600;
  font-size: 14px;
}

.contact-line strong {
  letter-spacing: .02em;
}

/* 二维码卡片 */
.qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: #fff;
  color: #111827;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, .22);
}

.qr-card img {
  width: 170px;
  height: 170px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  margin-bottom: 16px;
  object-fit: cover;
}

.qr-card strong {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.qr-card p {
  color: var(--muted);
  font-size: 14px;
  margin: 6px 0 0;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .58);
  padding: 48px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, .06);
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  margin-bottom: 14px;
  font-size: 16px;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.site-footer h3 {
  color: #fff;
  font-size: 14px;
  margin: 0 0 12px;
  font-weight: 700;
  letter-spacing: .02em;
}

.site-footer a {
  display: block;
  color: rgba(255, 255, 255, .56);
  font-size: 14px;
  margin: 8px 0;
  transition: color .2s ease;
  letter-spacing: .015em;
}

.site-footer a:hover {
  color: #fff;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, .06);
  margin-top: 32px;
  padding-top: 24px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.copyright .icp {
  color: rgba(255, 255, 255, .42);
  font-size: 13px;
  letter-spacing: .02em;
}

/* ===== 内页页头 ===== */
.page-hero {
  background: linear-gradient(160deg, #08090d, #17120b);
  color: #fff;
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, .14), transparent);
  pointer-events: none;
}

.page-hero h1 {
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.10;
  letter-spacing: -.045em;
  margin: 0 0 20px;
  font-weight: 900;
}

.page-hero p {
  max-width: 760px;
  color: rgba(255, 255, 255, .66);
  font-size: 18px;
  line-height: 1.82;
  margin: 0;
  letter-spacing: .02em;
}

.breadcrumb {
  color: #fbbf24;
  font-weight: 800;
  font-size: 14px;
  margin-bottom: 16px;
  letter-spacing: .04em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

/* ===== 提示框 ===== */
.note-box {
  border-radius: var(--radius);
  background: #fffbeb;
  border: 1px solid #fde68a;
  padding: 24px;
  color: #78350f;
  line-height: 1.78;
  font-size: 15px;
}

.note-box p {
  margin: 0;
}

.note-box::before {
  content: "💡 ";
  font-size: 17px;
}

/* ===== 表格 ===== */
.feature-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.feature-table th,
.feature-table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.feature-table th {
  background: #f9fafb;
  color: #111827;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .03em;
}

.feature-table tr:last-child td {
  border-bottom: 0;
}

.feature-table td {
  color: var(--muted);
  line-height: 1.7;
}

.feature-table tbody tr {
  transition: background .2s ease;
}

.feature-table tbody tr:hover {
  background: #fafbfc;
}

/* ===== 资讯列表 ===== */
.news-list {
  display: grid;
  gap: 20px;
}

.news-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-soft);
  transition: all .3s ease;
}

.news-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: rgba(245, 158, 11, .14);
}

.news-date {
  color: #b45309;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .02em;
}

.news-item h2 {
  font-size: 24px;
  margin: 0 0 10px;
  line-height: 1.35;
  letter-spacing: -.02em;
  font-weight: 800;
}

.news-item h2 a {
  transition: color .2s ease;
}

.news-item h2 a:hover {
  color: #b45309;
}

.news-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

/* ===== 文章页 ===== */
.article {
  max-width: 820px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-soft);
}

.article h1 {
  font-size: clamp(34px, 5vw, 50px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -.04em;
  margin-bottom: 14px;
}

.article h2 {
  font-size: 29px;
  margin-top: 40px;
  font-weight: 800;
  letter-spacing: -.025em;
  line-height: 1.3;
}

.article p,
.article li {
  color: #4b5563;
  line-height: 1.82;
  letter-spacing: .015em;
}

.article-meta {
  color: #b45309;
  font-weight: 800;
  margin-bottom: 20px;
  font-size: 14px;
  letter-spacing: .03em;
}

/* 目录 */
.toc {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.toc a {
  font-size: 14px;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  background: #fff;
  border: 1px solid var(--line);
  color: #475467;
  font-weight: 600;
  transition: all .2s ease;
}

.toc a:hover {
  background: #f9fafb;
  border-color: #d1d5db;
}

/* ===== 滚动渐显动画 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

/* 默认状态下隐藏（由 JS 控制） */
.anim-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s cubic-bezier(.22, .61, .36, 1);
}

.anim-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 - 平板 ===== */
@media (max-width: 920px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 38px;
    min-height: auto;
    padding: 72px 0;
  }

  .console {
    max-width: 600px;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

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

  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-box {
    grid-template-columns: 1fr;
  }

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

  .section {
    padding: 80px 0;
  }

  .section-sm {
    padding: 60px 0;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .flow-lines {
    grid-template-columns: 1fr;
  }

  .arrow {
    display: none;
  }

  .feature-table {
    display: block;
    overflow-x: auto;
    white-space: normal;
  }

  .feature-table table {
    min-width: 680px;
  }

  .card {
    padding: 26px;
  }
}

/* ===== 响应式 - 手机 ===== */
@media (max-width: 720px) {
  .container {
    width: min(100% - 32px, var(--container));
  }

  .nav {
    height: 66px;
  }

  .nav-links {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 74px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 10px;
    box-shadow: var(--shadow-lg);
    z-index: 60;
  }

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

  .nav-links a {
    padding: 13px 16px;
    font-size: 15px;
  }

  .menu-btn {
    display: inline-flex;
  }

  .brand span {
    font-size: 17px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero p,
  .page-hero p {
    font-size: 16px;
    line-height: 1.78;
  }

  .actions {
    align-items: stretch;
  }

  .actions .btn {
    width: 100%;
    justify-content: center;
  }

  .console {
    padding: 18px;
    border-radius: 24px;
  }

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

  .section h2 {
    font-size: 30px;
  }

  .card {
    padding: 24px;
    border-radius: 20px;
  }

  .contact-card,
  .qr-card {
    padding: 26px;
    border-radius: 24px;
  }

  .contact-card h2 {
    font-size: 28px;
  }

  .qr-card img {
    width: 140px;
    height: 140px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .article {
    padding: 28px;
    border-radius: 24px;
  }

  .page-hero {
    padding: 72px 0;
  }

  .site-header {
    position: sticky;
  }

  .hero-note {
    font-size: 12px;
  }

  .toc a {
    width: 100%;
    text-align: center;
  }

  .news-item h2 {
    font-size: 21px;
  }

  .copyright {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

/* ===== 响应式 - 小屏手机 ===== */
@media (max-width: 400px) {
  .hero h1 {
    font-size: 32px;
  }

  .page-hero h1 {
    font-size: 30px;
  }

  .section h2 {
    font-size: 26px;
  }

  .section {
    padding: 60px 0;
  }

  .section-sm {
    padding: 44px 0;
  }
}