@charset "utf-8";

/* Site layout only. Colors/spacing/tokens come from tokens.css */

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background: var(--site-bg);
  position: relative;
  overflow-x: hidden;
}

/* 渐变背景装饰 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 700px;
  background: radial-gradient(ellipse at top,
    color-mix(in srgb, var(--color-primary-600) 12%, transparent) 0%,
    transparent 70%);
  pointer-events: none;
  z-index: -1;
}

body::after {
  content: '';
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 400px;
  background: radial-gradient(ellipse at bottom,
    color-mix(in srgb, var(--color-primary-600) 8%, transparent) 0%,
    transparent 70%);
  pointer-events: none;
  z-index: -1;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

.container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border-bottom: 1px solid color-mix(in srgb, var(--site-border) 60%, transparent);
  box-shadow: 0 2px 12px -6px rgba(0, 0, 0, 0.08);
  transition: all var(--duration-normal) var(--ease-out);
}

.topbar::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--color-primary) 50%,
    transparent 100%);
  opacity: 0.5;
}

.topbar.scrolled {
  background: linear-gradient(180deg,
    var(--site-bg) 0%,
    color-mix(in srgb, var(--site-bg) 92%, transparent) 100%);
  box-shadow: 0 4px 20px -5px rgba(255, 77, 79, 0.2),
              0 0 0 1px color-mix(in srgb, var(--color-primary-300) 40%, transparent);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-4) 0;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.brand span {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2em;
  font-weight: 900;
  letter-spacing: -0.5px;
  line-height: 1.2;
  font-family: var(--font-family-display);
}

.brand small {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 1.1em;
  letter-spacing: 0.5px;
  padding-left: var(--space-2);
  position: relative;
  font-family: var(--font-family-sans);
}

.brand small::before {
  content: '·';
  color: var(--color-primary);
  margin-right: 2px;
}

.nav {
  display: flex;
  gap: var(--space-1);
  align-items: center;
}

.nav a {
  position: relative;
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 1.1em;
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-out);
  text-decoration: none;
}

.nav a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav a:hover {
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary-50) 15%, transparent);
  transform: translateY(-1px);
  text-decoration: none;
}

.nav a:hover::before {
  width: 60%;
}

.nav a.active {
  color: var(--color-primary);
  font-weight: 600;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--site-border) 70%, transparent);
  background: var(--site-panel);
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9em;
  transition: all var(--duration-fast) var(--ease-out);
}

.cta-primary {
  border: none;
  background: var(--gradient-primary);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--color-primary-400) 25%, transparent);
  font-weight: 600;
}

.cta-primary:hover {
  box-shadow: 0 4px 12px -4px rgba(255, 77, 79, 0.3);
  transform: translateY(-1px);
}

.cta:hover {
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px color-mix(in srgb, black 8%, transparent);
  text-decoration: none;
}

.cta:active {
  transform: translateY(0);
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.cta:active {
  transform: translateY(0);
}

.hero {
  padding: var(--space-16) 0 var(--space-10);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}

.hero h1 {
  font-size: var(--font-size-5xl);
  line-height: var(--line-height-tight);
  margin: 0 0 var(--space-4);
  letter-spacing: var(--letter-spacing-tight);
}

.hero p {
  margin: 0 0 var(--space-6);
  color: var(--text-secondary);
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.badges {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-6);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px;
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--site-card) 80%, transparent);
  border: 1px solid color-mix(in srgb, var(--site-border) 70%, transparent);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.panel {
  border: 1px solid color-mix(in srgb, var(--site-border) 70%, transparent);
  background: color-mix(in srgb, var(--site-panel) 85%, transparent);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  box-shadow:
    0 2px 4px color-mix(in srgb, black 10%, transparent),
    0 8px 16px color-mix(in srgb, black 5%, transparent);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in srgb, white 5%, transparent),
    transparent
  );
  transition: left 0.5s;
}

.panel:hover {
  transform: translateY(-4px);
  box-shadow:
    0 4px 8px color-mix(in srgb, black 15%, transparent),
    0 12px 24px color-mix(in srgb, black 8%, transparent);
}

.panel:hover::before {
  left: 100%;
}

.panel-title {
  margin: 0 0 var(--space-3);
  font-size: var(--font-size-xl);
}

.panel p { color: var(--text-secondary); margin: 0; }

.section {
  padding: var(--space-12) 0;
  border-top: 1px solid color-mix(in srgb, var(--site-border) 60%, transparent);
}

.section h2 {
  margin: 0 0 var(--space-2);
  font-size: var(--font-size-3xl);
}

.section .lead {
  margin: 0 0 var(--space-8);
  color: var(--text-secondary);
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
}

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background: color-mix(in srgb, var(--site-card) 80%, transparent);
  border: 1px solid color-mix(in srgb, var(--site-border) 70%, transparent);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}

.feature::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 1px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-primary-400) 20%, transparent) 0%,
    transparent 50%,
    color-mix(in srgb, var(--color-primary-600) 20%, transparent) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  pointer-events: none;
}

.feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.feature:hover::before {
  opacity: 1;
}

.feature + .feature { margin-top: var(--space-6); }

.feature h3 {
  margin: 0 0 var(--space-2);
  font-size: var(--font-size-2xl);
}

.feature .sub {
  margin: 0 0 var(--space-4);
  color: var(--text-secondary);
}

.feature ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.shot {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--site-border) 70%, transparent);
  box-shadow: var(--shadow-lg);
  background: var(--site-panel);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.kdot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.mini {
  border: 1px solid color-mix(in srgb, var(--site-border) 70%, transparent);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  background: color-mix(in srgb, var(--site-panel) 80%, transparent);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}

.mini::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 1px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-primary-400) 15%, transparent) 0%,
    transparent 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  pointer-events: none;
}

.mini:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--color-primary-400) 40%, var(--site-border));
  box-shadow:
    0 2px 4px color-mix(in srgb, black 10%, transparent),
    0 8px 16px color-mix(in srgb, black 5%, transparent);
}

.mini:hover::before {
  opacity: 1;
}

.mini h4 { margin: 0 0 var(--space-2); }
.mini p { margin: 0; color: var(--text-secondary); line-height: var(--line-height-relaxed); }

.mini ul {
  margin: var(--space-3) 0 0;
  padding-left: 18px;
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.mini li { margin: 6px 0; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px;
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--site-card) 85%, transparent);
  border: 1px solid color-mix(in srgb, var(--site-border) 70%, transparent);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.pill-hot {
  background: color-mix(in srgb, var(--color-primary-700) 35%, var(--site-card));
  border-color: color-mix(in srgb, var(--color-primary-400) 60%, transparent);
  color: var(--text-primary);
}

.pill-custom {
  background: color-mix(in srgb, var(--color-secondary-700) 35%, var(--site-card));
  border-color: color-mix(in srgb, var(--color-secondary-400) 60%, transparent);
  color: var(--text-primary);
}

.price {
  margin-top: var(--space-3);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
}

.footer {
  padding: var(--space-10) 0;
  color: var(--text-secondary);
}

.footer .cols {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-6);
}

/* ================================================
   页脚合作伙伴循环展示
   ================================================ */

.partners-marquee,
.platforms-marquee {
  overflow: hidden;
  position: relative;
  padding: var(--space-4) 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    color-mix(in srgb, var(--site-card) 30%, transparent) 10%,
    color-mix(in srgb, var(--site-card) 30%, transparent) 90%,
    transparent 100%
  );
}

.partners-marquee {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.platforms-marquee {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.partners-track,
.platforms-track {
  display: flex;
  gap: var(--space-6);
}

.partners-marquee .partners-track,
.platforms-marquee .platforms-track {
  width: max-content;
}

.partner-logo,
.platform-logo {
  height: 50px;
  width: auto;
  object-fit: contain;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--site-card) 80%, transparent);
  border: 1px solid color-mix(in srgb, var(--site-border) 60%, transparent);
  transition: all var(--duration-fast) var(--ease-out);
  opacity: 0.85;
  flex-shrink: 0;
}

.partner-logo:hover,
.platform-logo:hover {
  opacity: 1;
  border-color: color-mix(in srgb, var(--color-primary-400) 50%, var(--site-border));
  background: color-mix(in srgb, white 90%, transparent);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--color-primary-400) 20%, transparent);
}

@keyframes marquee-left {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

@keyframes marquee-right {
  0% {
    transform: translateX(-50%);
  }
  100% {
    transform: translateX(0);
  }
}

/* 第一个往左滚动，第二个往右滚动 */
.partners-marquee .partners-track:nth-child(1),
.platforms-marquee .platforms-track:nth-child(1) {
  animation: marquee-left 30s linear infinite;
}

.partners-marquee .partners-track:nth-child(2),
.platforms-marquee .platforms-track:nth-child(2) {
  animation: marquee-right 30s linear infinite;
}

/* 鼠标悬停时暂停动画 */
.partners-marquee:hover .partners-track,
.platforms-marquee:hover .platforms-track {
  animation-play-state: paused;
}

.small { font-size: var(--font-size-sm); color: var(--text-secondary); }

/* ================================================
   页面进度条
   ================================================ */

.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--gradient-primary);
  z-index: 1001;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px color-mix(in srgb, var(--color-primary-500) 50%, transparent);
}

/* ================================================
   回到顶部按钮
   ================================================ */

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 2px 8px color-mix(in srgb, var(--color-primary-500) 30%, transparent),
    0 8px 16px color-mix(in srgb, black 20%, transparent);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-normal) var(--ease-out);
  z-index: 99;
  font-size: 24px;
}

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

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow:
    0 4px 12px color-mix(in srgb, var(--color-primary-500) 40%, transparent),
    0 12px 24px color-mix(in srgb, black 25%, transparent);
}

.back-to-top:active {
  transform: translateY(0);
}

/* ================================================
   导航增强
   ================================================ */

.nav-link {
  position: relative;
  padding: 4px 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-link:hover::after {
  width: 100%;
}

/* ================================================
   徽章增强
   ================================================ */

.badge {
  transition: all var(--duration-fast) var(--ease-out);
}

.badge:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--color-primary-400) 50%, var(--site-border));
  box-shadow: 0 2px 4px color-mix(in srgb, black 10%, transparent);
}

/* ================================================
   图片增强
   ================================================ */

.shot {
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  cursor: zoom-in;
}

.shot:hover {
  transform: scale(1.02);
  box-shadow:
    0 4px 8px color-mix(in srgb, black 15%, transparent),
    0 12px 24px color-mix(in srgb, black 10%, transparent);
}

/* ================================================
   移动端导航（汉堡菜单）
   ================================================ */

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 980px) {
  .mobile-menu-toggle {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--site-bg);
    border-top: 1px solid color-mix(in srgb, var(--site-border) 70%, transparent);
    padding: var(--space-4);
    flex-direction: column;
    gap: var(--space-2);
    box-shadow: 0 4px 12px color-mix(in srgb, black 15%, transparent);
  }

  .nav.active {
    display: flex;
  }

  .hero-grid { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .footer .cols { grid-template-columns: 1fr; }
  .hero h1 { font-size: var(--font-size-4xl); }
}

/* ================================================
   加载动画
   ================================================ */

.loading-skeleton {
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--site-card) 50%, transparent) 25%,
    color-mix(in srgb, var(--site-border) 30%, transparent) 50%,
    color-mix(in srgb, var(--site-card) 50%, transparent) 75%
  );
  background-size: 200% 100%;
  animation: skeleton 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ================================================
   玻璃态效果
   ================================================ */

.glass {
  background: color-mix(in srgb, var(--site-bg) 70%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid color-mix(in srgb, var(--site-border) 50%, transparent);
}

/* ================================================
   光泽效果
   ================================================ */

.shine {
  position: relative;
  overflow: hidden;
}

.shine::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in srgb, white 10%, transparent),
    transparent
  );
  animation: shine 3s infinite;
}

/* ================================================
   优化移动端
   ================================================ */

@media (max-width: 768px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    font-size: 20px;
  }

  .hero {
    padding: var(--space-12) 0 var(--space-8);
  }

  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta {
    width: 100%;
  }
}

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .footer .cols { grid-template-columns: 1fr; }
  .hero h1 { font-size: var(--font-size-4xl); }
}

/* ================================================
   导航科技感增强
   ================================================ */

.topbar .nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width 0.3s var(--ease-out);
  box-shadow: 0 0 8px var(--color-primary-500);
}

.topbar .nav a:hover::after {
  width: 80%;
}

.topbar .nav a.active::after {
  width: 80%;
}