/* DeepSeek Browser Frame Design System - browser.css */
:root {
  --bg-desktop: #06090f;
  --bg-browser-frame: #0d121d;
  --bg-browser-header: #131b2c;
  --bg-tab-active: #1a243a;
  --bg-tab-inactive: #0f1624;
  --bg-omnibox: #0b0f19;
  --bg-card: #141c2e;
  --bg-card-hover: #1b263e;
  --border-frame: #1f2a40;
  --border-subtle: #24324d;
  --border-accent: #0ea5e9;
  --accent-cyan: #0ea5e9;
  --accent-blue: #38bdf8;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-desktop);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
}

body {
  background: radial-gradient(circle at 50% 0%, #111a2e 0%, var(--bg-desktop) 85%);
  color: var(--text-main);
  min-height: 100vh;
  padding: 24px 16px;
  overflow-x: hidden;
}

/* 浏览器外框总容器: 布局：外层是地址栏和标签，内层才是页面 */
.browser-outer-window {
  max-width: 1280px;
  margin: 0 auto;
  background-color: var(--bg-browser-frame);
  border: 1px solid var(--border-frame);
  border-radius: 12px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.05);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* 浏览器顶栏: 窗口按钮 + 只有两个标签 */
.browser-titlebar {
  background-color: var(--bg-browser-header);
  border-bottom: 1px solid var(--border-frame);
  display: flex;
  align-items: center;
  padding: 10px 16px 0;
  gap: 16px;
  user-select: none;
}

/* macOS 风格红黄绿窗口控件 */
.browser-window-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
}

.window-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.window-dot-red { background-color: #ef4444; }
.window-dot-yellow { background-color: #f59e0b; }
.window-dot-green { background-color: #10b981; }

/* 标签栏 - 细节：标签只有两个。词：标签一 DeepSeek官网，标签二 API开放平台 */
.browser-tab-strip {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  flex: 1;
}

.browser-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px 10px;
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-muted);
  background-color: var(--bg-tab-inactive);
  border: 1px solid var(--border-frame);
  border-bottom: none;
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  position: relative;
  transition: all 0.2s ease;
}

.browser-tab:hover {
  color: var(--text-main);
  background-color: rgba(26, 36, 58, 0.6);
}

.browser-tab.active {
  color: #ffffff;
  background-color: var(--bg-tab-active);
  border-color: var(--border-subtle);
  border-top: 2px solid var(--accent-cyan);
}

.browser-tab-favicon {
  width: 14px;
  height: 14px;
  object-fit: contain;
}

.browser-tab-close {
  width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 11px;
  border-radius: 50%;
}

/* 浏览器工具栏：导航按钮 + 地址栏 */
.browser-toolbar {
  background-color: var(--bg-tab-active);
  border-bottom: 1px solid var(--border-frame);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.toolbar-nav-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
}

.toolbar-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.toolbar-btn:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.08);
}

/* 地址栏 - 细节：地址栏显示路径。词：地址路径 /web */
.browser-omnibox {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: var(--bg-omnibox);
  border: 1px solid var(--border-frame);
  border-radius: 6px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  transition: border-color 0.2s ease;
}

.browser-omnibox:focus-within {
  border-color: var(--accent-cyan);
}

.omnibox-lock-icon {
  width: 14px;
  height: 14px;
  color: var(--accent-emerald);
}

.omnibox-protocol {
  color: var(--text-dim);
  user-select: none;
}

.omnibox-domain {
  color: var(--text-main);
  font-weight: 500;
}

/* 词：地址路径 /web */
.omnibox-path {
  color: var(--accent-blue);
  font-weight: 700;
  background-color: rgba(14, 165, 233, 0.12);
  padding: 1px 6px;
  border-radius: 3px;
}

.omnibox-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  color: var(--text-dim);
}

/* 内层页面视口: 布局：内层才是页面 */
.browser-inner-viewport {
  background-color: var(--bg-browser-frame);
  position: relative;
  overflow-y: auto;
}

/* 通用容器与排版 */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶栏: Logo、三个导航、主按钮「进入网页版」、汉堡按钮 */
.header {
  position: sticky;
  top: 0;
  z-index: 90;
  background-color: rgba(13, 18, 29, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-frame);
  height: 62px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 8px;
  background-color: rgba(14, 165, 233, 0.12);
  border: 1px solid rgba(14, 165, 233, 0.3);
  color: var(--accent-cyan);
  border-radius: 4px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
  position: relative;
  padding: 4px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-cyan);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 8px 18px;
  text-decoration: none;
  border-radius: 6px;
  border: 1px solid rgba(56, 189, 248, 0.3);
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
  cursor: pointer;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  box-shadow: 0 6px 18px rgba(14, 165, 233, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #172033;
  color: var(--text-main);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 18px;
  text-decoration: none;
  border-radius: 6px;
  border: 1px solid var(--border-frame);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background-color: #1e2a42;
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.hamburger-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-frame);
  color: var(--text-main);
  padding: 6px;
  border-radius: 6px;
  cursor: pointer;
}

/* 首屏 #top: 左文右图 */
.hero-section {
  padding: 56px 0 48px;
  position: relative;
  border-bottom: 1px solid var(--border-frame);
  background: linear-gradient(180deg, rgba(19, 27, 44, 0.4) 0%, transparent 100%);
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-cyan);
  background-color: rgba(14, 165, 233, 0.1);
  padding: 4px 12px;
  border: 1px solid rgba(14, 165, 233, 0.25);
  margin-bottom: 18px;
  align-self: flex-start;
  border-radius: 4px;
}

.hero-title {
  font-size: 2.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.25;
  color: #ffffff;
  margin-bottom: 18px;
}

.hero-desc {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 22px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-tag {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background-color: #111827;
  border: 1px solid var(--border-frame);
  padding: 4px 10px;
  border-radius: 4px;
}

/* 首屏右侧图文叠层 */
.hero-visual {
  position: relative;
}

.hero-img-wrap {
  width: 100%;
  border: 1px solid var(--border-frame);
  background-color: #0b0f19;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.score-badge-card {
  position: absolute;
  top: -14px;
  right: -12px;
  background-color: rgba(19, 27, 44, 0.95);
  border: 1px solid var(--accent-cyan);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
}

.score-big {
  font-size: 1.75rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  line-height: 1;
}

.score-latency {
  font-size: 1.35rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-emerald);
  line-height: 1;
}

.score-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.radar-overlay-card {
  position: absolute;
  bottom: -18px;
  left: 16px;
  right: 16px;
  background-color: rgba(19, 27, 44, 0.94);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  padding: 14px 18px;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.radar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.radar-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: #ffffff;
}

.radar-score-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  background-color: rgba(14, 165, 233, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(14, 165, 233, 0.3);
}

.radar-axes {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.radar-axis-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.76rem;
}

.radar-axis-label {
  width: 48px;
  color: var(--text-muted);
}

.radar-axis-track {
  flex: 1;
  height: 6px;
  background-color: #0b0f19;
  border-radius: 3px;
  overflow: hidden;
}

.radar-axis-fill {
  height: 100%;
  background: linear-gradient(90deg, #0284c7 0%, #38bdf8 100%);
  border-radius: 3px;
}

.radar-axis-val {
  width: 34px;
  text-align: right;
  font-family: var(--font-mono);
  color: #ffffff;
  font-size: 0.72rem;
}

/* 通用区块排版 */
.section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border-frame);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 44px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* 能力 #ability: 4 列实心卡，推理、搜索、代码、写作 */
.ability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.ability-solid-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-frame);
  padding: 26px 22px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.ability-solid-card:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.ability-icon-wrap {
  width: 44px;
  height: 44px;
  background-color: #0f172a;
  border: 1px solid var(--border-frame);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent-cyan);
  border-radius: 6px;
}

.ability-card-title {
  font-size: 1.18rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.ability-card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 场景 #scenes: 5 列编号卡，01 到 05 */
.scenes-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.scene-card {
  background-color: #101726;
  border: 1px solid var(--border-frame);
  padding: 22px 18px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.scene-card:hover {
  border-color: var(--accent-cyan);
  background-color: #141d30;
}

.scene-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.scene-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.scene-card-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 产品 #models: 4 列描边卡，官网、网页版、API、Harness，每张卡里有三条短列表 */
.models-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.model-outline-card {
  background-color: transparent;
  border: 1px solid var(--border-frame);
  padding: 28px 22px;
  border-radius: 8px;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}

.model-outline-card:hover {
  border-color: var(--accent-cyan);
  background-color: rgba(26, 36, 58, 0.3);
}

.model-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  border: 1px solid rgba(14, 165, 233, 0.3);
  padding: 2px 6px;
  display: inline-block;
  margin-bottom: 14px;
  align-self: flex-start;
  border-radius: 4px;
}

.model-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.model-summary {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.5;
}

.model-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  flex: 1;
}

.model-feature-item {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.model-feature-item::before {
  content: "•";
  color: var(--accent-cyan);
  font-size: 1.2rem;
  line-height: 1;
}

.model-card-btn {
  display: block;
  text-align: center;
  padding: 9px 0;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-main);
  background-color: #172033;
  border: 1px solid var(--border-frame);
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.model-card-btn:hover {
  background-color: #1e2a42;
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* 接入 #api: 左文右图，配 2.webp 和 94% / 91% / 88% 三条进度 */
.api-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
}

.progress-group {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.progress-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.progress-label {
  color: var(--text-muted);
}

.progress-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-cyan);
}

.progress-bar-track {
  height: 8px;
  background-color: #0b0f19;
  border: 1px solid var(--border-frame);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #0284c7, #38bdf8);
}

.media-wrap {
  border: 1px solid var(--border-frame);
  background-color: #0b0f19;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.media-wrap img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 入口 #download: 改成左图右文，图是 3.webp，和上一块左右对调 */
.download-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
}

/* 数据 #data: 四个数字（5、12、3、99%）加一条通栏按钮 */
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.data-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-frame);
  padding: 30px 18px;
  text-align: center;
  border-radius: 8px;
}

.data-number {
  font-family: var(--font-mono);
  font-size: 2.85rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1;
  margin-bottom: 8px;
}

.data-label {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.data-full-btn {
  display: block;
  width: 100%;
  text-align: center;
  padding: 16px;
  font-size: 1.05rem;
  font-weight: 700;
  background: linear-gradient(135deg, #131c2d 0%, #1e2b45 100%);
  color: #ffffff;
  border: 1px solid var(--border-frame);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.data-full-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: linear-gradient(135deg, #172338 0%, #243557 100%);
}

/* 问答 #faq: 四条折叠，第一条默认打开 */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--border-frame);
  background-color: var(--bg-card);
  border-radius: 8px;
  overflow: hidden;
}

.faq-item summary {
  padding: 18px 22px;
  font-size: 1.02rem;
  font-weight: 600;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-content {
  padding: 0 22px 18px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 资讯 #news: 六条横排图文，4.webp 到 9.webp 全部露出，没有「查看更多」 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.news-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-frame);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

.news-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.news-thumb {
  width: 100%;
  height: 175px;
  overflow: hidden;
  background-color: #0b0f19;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.news-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-date {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-cyan);
  margin-bottom: 6px;
}

.news-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
  line-height: 1.4;
}

.news-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
}

/* 页脚: 品牌说明、产品、资源、关于，四列 */
.footer {
  background-color: #0b0f19;
  border-top: 1px solid var(--border-frame);
  padding: 56px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.86rem;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid var(--border-frame);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* 响应式断点 */
@media (max-width: 1024px) {
  .scenes-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  body {
    padding: 12px 6px;
  }
  .nav-menu {
    display: none;
  }
  .hamburger-btn {
    display: block;
  }
  .browser-tab-strip {
    overflow-x: auto;
  }
  .hero-layout,
  .api-layout,
  .download-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .ability-grid,
  .models-grid,
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .scenes-grid {
    grid-template-columns: 1fr;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .ability-grid,
  .models-grid,
  .data-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .browser-titlebar {
    padding: 8px 10px 0;
  }
  .browser-tab {
    padding: 6px 12px 8px;
    font-size: 0.78rem;
  }
}