/* =========================================================
   DeepSeek Harness Desktop 下载站
   设计语言：DeepSeek 蓝 + 终端青（Agent 会话质感）+ 咖啡琥珀（付费时刻）
   深色为默认，[data-theme="light"] 覆盖
   ========================================================= */

/* ===== 主题变量 ===== */
:root {
  --bg: #060a14;
  --bg-soft: #0b1220;
  --card: #0f1830;
  --card-2: #131e3a;
  --border: #1c2a4a;
  --text: #e8ecf6;
  --text-dim: #8595b0;
  --accent: #4d6bfe;
  --accent-strong: #3a5bf5;
  --cyan: #38bdf8;
  --coffee: #e7a94c;
  --success: #34d399;
  --danger: #f87171;
  --wx-green: #07c160;
  --ali-blue: #1677ff;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(2, 6, 18, 0.5);
  --glow:
    0 0 0 1px rgba(77, 107, 254, 0.35), 0 12px 44px rgba(56, 128, 254, 0.16);
  --font-mono:
    ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

[data-theme="light"] {
  --bg: #f5f7fc;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-2: #f0f4fb;
  --border: #dde4f0;
  --text: #15203a;
  --text-dim: #5c6b88;
  --accent: #3b5bf5;
  --accent-strong: #2b4bf0;
  --cyan: #0ea5e9;
  --coffee: #c47f1e;
  --success: #0d9f6e;
  --danger: #dc2626;
  --shadow: 0 12px 40px rgba(20, 40, 90, 0.1);
  --glow:
    0 0 0 1px rgba(59, 91, 245, 0.25), 0 12px 40px rgba(59, 91, 245, 0.12);
}

/* ===== 基础 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition:
    background 0.3s,
    color 0.3s;
  -webkit-font-smoothing: antialiased;
}
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--accent);
  text-decoration: none;
}
::selection {
  background: color-mix(in srgb, var(--accent) 40%, transparent);
  color: #fff;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ===== 导航栏 ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.01em;
}
.nav-logo svg {
  display: block;
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover {
  color: var(--text);
}
.theme-toggle {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 8px 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    border-color 0.15s,
    color 0.15s;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.theme-toggle svg {
  width: 16px;
  height: 16px;
  display: block;
}
[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}
[data-theme="light"] .theme-toggle .icon-sun {
  display: none;
}

/* ===== Hero ===== */
.hero {
  padding: 92px 0 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 560px;
  background:
    radial-gradient(
      560px 280px at 50% 0%,
      color-mix(in srgb, var(--accent) 20%, transparent),
      transparent 70%
    ),
    radial-gradient(
      420px 200px at 72% 12%,
      color-mix(in srgb, var(--cyan) 12%, transparent),
      transparent 70%
    );
  pointer-events: none;
}
.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-transform: uppercase;
  background: color-mix(in srgb, var(--cyan) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--cyan) 28%, transparent);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 26px;
}
.hero .eyebrow::before {
  content: "●";
  font-size: 8px;
  color: var(--cyan);
  animation: pulse 2.2s ease-in-out infinite;
}
.hero h1 {
  font-size: clamp(34px, 5.4vw, 58px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.14;
}
.grad-text {
  background: linear-gradient(120deg, var(--accent) 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .subtitle {
  color: var(--text-dim);
  font-size: clamp(16px, 2vw, 19px);
  margin: 22px auto 14px;
  max-width: 620px;
}
.dl-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 auto 30px;
  font-size: 13px;
  color: var(--text-dim);
}
.dl-stats svg {
  width: 15px;
  height: 15px;
  opacity: 0.85;
}
.dl-stats .dl-num {
  color: var(--accent);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.dl-stats .dl-sep {
  opacity: 0.5;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(
    120deg,
    var(--accent) 0%,
    var(--accent-strong) 100%
  );
  color: #fff;
  font-weight: 700;
  border: none;
  border-radius: 999px;
  padding: 17px 48px;
  font-size: 17px;
  cursor: pointer;
  box-shadow: var(--glow);
  transition:
    transform 0.16s,
    box-shadow 0.16s,
    opacity 0.16s;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow:
    var(--glow),
    0 16px 44px rgba(77, 107, 254, 0.28);
}
.btn:active {
  transform: translateY(0);
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.hero-badges {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 26px;
  flex-wrap: wrap;
}
.badge {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-dim);
}

/* ===== Agent 会话面板（签名元素） ===== */
.agent-panel {
  max-width: 600px;
  margin: 56px auto 0;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.agent-panel-head {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--card-2);
}
.agent-panel-head .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}
.agent-panel-head .dot:nth-child(1) {
  background: color-mix(in srgb, var(--danger) 70%, transparent);
}
.agent-panel-head .dot:nth-child(2) {
  background: color-mix(in srgb, var(--coffee) 70%, transparent);
}
.agent-panel-head .dot:nth-child(3) {
  background: color-mix(in srgb, var(--success) 70%, transparent);
}
.agent-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.agent-lines {
  padding: 18px 20px 20px;
  font-family: var(--font-mono);
  font-size: 13.5px;
}
.agent-line {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-dim);
  padding: 6px 0;
  opacity: 0;
  animation: lineIn 0.45s ease forwards;
}
.agent-line:nth-child(1) {
  animation-delay: 0.35s;
}
.agent-line:nth-child(2) {
  animation-delay: 0.65s;
}
.agent-line:nth-child(3) {
  animation-delay: 0.95s;
}
.agent-line:nth-child(4) {
  animation-delay: 1.25s;
}
.agent-mark {
  width: 18px;
  text-align: center;
  font-size: 12px;
}
.agent-line.is-done .agent-mark {
  color: var(--success);
}
.agent-line.is-run {
  color: var(--text);
}
.agent-line.is-run .agent-mark {
  color: var(--cyan);
  animation: pulse 1.6s ease-in-out infinite;
}
.agent-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  margin-left: 2px;
  background: var(--cyan);
  animation: blink 1.1s steps(1) infinite;
}

/* ===== 通用区块 ===== */
.section {
  padding: 76px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 46px;
}
.section-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}
.section-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.section-sub {
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== 特性卡片 ===== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition:
    transform 0.16s,
    border-color 0.16s,
    box-shadow 0.16s;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: var(--shadow);
}
.feature-card .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  color: var(--text-dim);
  font-size: 14px;
}

/* ===== 截图区 ===== */
.screenshots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.screenshot {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 14px;
  transition: border-color 0.16s;
}
.screenshot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.screenshot:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
}

/* ===== 下载区 ===== */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(195px, 1fr));
  gap: 18px;
  max-width: 900px;
  margin: 0 auto;
}
.platform-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 18px 24px;
  text-align: center;
  transition:
    border-color 0.16s,
    transform 0.16s,
    box-shadow 0.16s;
}
.platform-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
}
.platform-card .icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--cyan) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--cyan) 24%, transparent);
}
.platform-card .icon svg {
  width: 26px;
  height: 26px;
}
.platform-card[data-platform="windows"] .icon svg {
  fill: #00adef;
}
.platform-card[data-platform="macos_arm"] .icon svg,
.platform-card[data-platform="macos_intel"] .icon svg {
  fill: var(--text);
}
.platform-card[data-platform="ios"] .icon svg {
  fill: var(--cyan);
}
.platform-card[data-platform="android"] .icon svg {
  fill: #3ddc84;
}
.platform-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.platform-card .meta {
  color: var(--text-dim);
  font-size: 12px;
  margin-bottom: 16px;
}
.platform-card .download-btn {
  width: 100%;
  background: linear-gradient(120deg, var(--accent), var(--accent-strong));
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 11px 0;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition:
    opacity 0.15s,
    transform 0.15s;
}
.platform-card .download-btn:hover {
  opacity: 0.92;
}
.platform-card .download-btn:disabled {
  background: var(--card-2);
  color: var(--text-dim);
  border: 1px dashed var(--border);
  cursor: not-allowed;
}
.platform-card.is-highlight {
  border-color: var(--accent);
  box-shadow: var(--glow);
}
.platform-card.is-highlight::before {
  content: "推荐下载";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(120deg, var(--accent), var(--cyan));
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 999px;
  padding: 3px 14px;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(77, 107, 254, 0.35);
}
.platform-card.is-soon {
  opacity: 0.72;
}

/* ===== 教程 ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition:
    transform 0.16s,
    border-color 0.16s;
}
.step:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
}
.step .num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--accent), var(--cyan));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 16px;
  font-size: 15px;
}
.step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step p {
  color: var(--text-dim);
  font-size: 14px;
}

/* ===== 评价 ===== */
.reviews {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.review {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color 0.16s;
}
.review:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}
.review .quote {
  font-size: 14.5px;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.8;
}
.review .quote::before {
  content: "“";
  color: var(--accent);
  font-size: 20px;
  font-weight: 800;
}
.review .who {
  font-size: 13px;
  color: var(--text-dim);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--card);
}
.faq-q {
  padding: 17px 22px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: color 0.15s;
}
.faq-q:hover {
  color: var(--accent);
}
.faq-q::after {
  content: "+";
  color: var(--text-dim);
  font-size: 19px;
  font-weight: 400;
  transition: transform 0.2s;
}
.faq-item.open .faq-q::after {
  content: "−";
}
.faq-a {
  padding: 0 22px 18px;
  color: var(--text-dim);
  font-size: 14px;
  display: none;
}
.faq-item.open .faq-a {
  display: block;
}

/* ===== 支付弹窗 ===== */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 16, 0.66);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
}
.modal-mask.open {
  display: flex;
}
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  max-width: 420px;
  width: 100%;
  padding: 34px 32px 30px;
  position: relative;
  box-shadow: var(--shadow);
  animation: popIn 0.24s ease;
}
.modal h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 4px;
  text-align: center;
}
.modal .coffee-icon {
  font-size: 34px;
  text-align: center;
  margin-bottom: 6px;
}
.modal .price {
  text-align: center;
  font-size: 38px;
  font-weight: 800;
  color: var(--coffee);
  margin: 8px 0 2px;
  letter-spacing: -0.02em;
}
.modal .price small {
  font-size: 15px;
  color: var(--text-dim);
  font-weight: 400;
}
.modal .note {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  margin: 8px 0 24px;
}
.pay-channels {
  display: flex;
  gap: 12px;
}
.pay-btn {
  flex: 1;
  border: none;
  border-radius: 12px;
  padding: 13px 0;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  color: #fff;
  transition:
    opacity 0.15s,
    transform 0.15s;
}
.pay-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}
.pay-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}
.pay-btn[data-channel="wechat"] {
  background: var(--wx-green);
}
.pay-btn[data-channel="alipay"] {
  background: var(--ali-blue);
}
.pay-qr {
  text-align: center;
}
.pay-channel-badge {
  display: block;
  width: fit-content;
  margin: 0 auto 14px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  border-radius: 999px;
  padding: 4px 16px;
  letter-spacing: 0.04em;
}
.pay-channel-badge.wechat {
  background: var(--wx-green);
}
.pay-channel-badge.alipay {
  background: var(--ali-blue);
}
.pay-qr-box {
  position: relative;
  display: inline-block;
}
.pay-qr-box img {
  width: 208px;
  height: 208px;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: #fff;
  padding: 6px;
  transition: border-color 0.2s;
  display: block;
}
.pay-qr[data-channel="wechat"] .pay-qr-box img {
  border-color: var(--wx-green);
}
.pay-qr[data-channel="alipay"] .pay-qr-box img {
  border-color: var(--ali-blue);
}
.pay-qr-expired {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  background: rgba(2, 6, 18, 0.92);
  color: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.pay-qr-expired.show {
  display: flex;
}
.pay-qr-box.is-expired img {
  filter: blur(20px) saturate(0.2);
  opacity: 0.2;
}
.pay-qr .tip {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 14px;
}
.pay-retry {
  display: none;
  margin-top: 14px;
  border: 1px solid var(--border);
  background: var(--card-2);
  color: var(--text);
  border-radius: 999px;
  padding: 9px 20px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition:
    border-color 0.15s,
    color 0.15s;
}
.pay-retry.show {
  display: inline-block;
}
.pay-retry:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.pay-status {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 16px;
  min-height: 20px;
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  transition: color 0.15s;
}
.modal-close:hover {
  color: var(--text);
}
.pay-success {
  text-align: center;
  padding: 16px 0 6px;
}
.pay-success .emoji {
  font-size: 54px;
  animation: popIn 0.4s ease;
}
.pay-success h4 {
  font-size: 21px;
  font-weight: 800;
  margin: 14px 0 8px;
}
.pay-success p {
  color: var(--text-dim);
  font-size: 14px;
}

/* ===== 返回顶部 ===== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition:
    opacity 0.2s,
    transform 0.2s,
    border-color 0.15s,
    color 0.15s;
}
.back-to-top svg {
  width: 19px;
  height: 19px;
}
.back-to-top.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== 页脚 ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 44px 0 52px;
  text-align: center;
}
.footer p {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 8px;
}
.footer .footer-note {
  /*color: color-mix(in srgb, var(--text-dim) 55%, transparent);*/
  font-size: 12px;
}
.footer .disclaimer {
  /*color: color-mix(in srgb, var(--text-dim) 55%, transparent);*/
  font-size: 12px;
  max-width: 640px;
  margin: 18px auto 0;
  line-height: 1.8;
}

/* ===== 动效 ===== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes lineIn {
  from {
    opacity: 0;
    transform: translateX(-6px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes blink {
  0%,
  55% {
    opacity: 1;
  }
  56%,
  100% {
    opacity: 0;
  }
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}
@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.94) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}
.hero .eyebrow {
  animation: fadeUp 0.5s ease both;
}
.hero h1 {
  animation: fadeUp 0.55s ease 0.08s both;
}
.hero .subtitle {
  animation: fadeUp 0.55s ease 0.16s both;
}
.hero .btn {
  animation: fadeUp 0.55s ease 0.24s both;
}
.hero .hero-badges {
  animation: fadeUp 0.55s ease 0.32s both;
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .nav-links a {
    display: none;
  }
  .hero {
    padding: 64px 0 40px;
  }
  .section {
    padding: 52px 0;
  }
  .agent-panel {
    margin-top: 40px;
  }
  .modal {
    padding: 30px 22px 26px;
  }
  .back-to-top {
    right: 16px;
    bottom: 16px;
  }
}

/* 用户评分模块（对齐参考站：大号 /10 均分 + 5 档分布条 + 可点星星） */
.rating-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--card, #fff);
  border: 1px solid var(--border, #e6e8ef);
  border-radius: 16px;
  padding: 26px 30px 22px;
  box-shadow: var(--shadow, 0 10px 30px rgba(20, 30, 60, 0.08));
  text-align: center;
}
.rating-title {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text, #1b2030);
}
.rating-head {
  margin-bottom: 16px;
}
.rating-score {
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
  color: var(--accent, #4d6bfe);
}
.rating-score .rating-num {
  color: var(--accent, #4d6bfe);
}
.rating-score .rating-scale {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dim, #8a90a6);
  margin-left: 4px;
}
.rating-count {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-dim, #8a90a6);
}
.rating-dist {
  margin: 6px auto 18px;
  max-width: 300px;
  text-align: left;
}
.dist-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim, #8a90a6);
  margin: 4px 0;
}
.dist-label {
  width: 20px;
  flex: none;
}
.dist-bar {
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: #eceef5;
  overflow: hidden;
}
.dist-bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #4d6bfe, #38bdf8);
  border-radius: 4px;
  transition: width 0.3s ease;
}
.dist-pct {
  width: 32px;
  text-align: right;
  flex: none;
}
.rating-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.rating-input {
  display: flex;
  gap: 4px;
  justify-content: center;
}
.rating-input .star {
  font-size: 32px;
  line-height: 1;
  color: #d8dbe6;
  cursor: pointer;
  transition: color 0.15s ease, transform 0.15s ease;
  user-select: none;
}
.rating-input .star:hover,
.rating-input .star.active {
  color: #f5b50a;
  transform: scale(1.12);
}
.rating-input .star:focus {
  outline: 2px solid var(--accent, #4d6bfe);
  outline-offset: 2px;
  border-radius: 4px;
}
.rating-input.submitting {
  opacity: 0.55;
  pointer-events: none;
}
.rating-score .rating-num.rating-empty {
  font-size: 28px;
  color: var(--text-dim, #8a90a6);
}
.rating-hint {
  font-size: 13px;
  color: var(--text-dim, #8a90a6);
  min-height: 18px;
}
.rating-note {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-dim, #8a90a6);
}