/* =========================
   基础重置与主体
   ========================= */

* { box-sizing: border-box; }

html,
body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: var(--fw-body);
  color: var(--text);
  overflow-x: hidden;
  transition: background .45s var(--ease), color .25s var(--ease);

  background:
    radial-gradient(1100px 700px at 12% 12%, color-mix(in srgb, var(--violet) 20%, transparent), transparent 60%),
    radial-gradient(900px 700px at 86% 16%, color-mix(in srgb, var(--cyan) 14%, transparent), transparent 62%),
    radial-gradient(700px 500px at 70% 86%, color-mix(in srgb, var(--pink) 10%, transparent), transparent 62%),
    radial-gradient(1200px 900px at 50% 0%, color-mix(in srgb, var(--text) 6%, transparent), transparent 68%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
img { max-width: 100%; display: block; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.container {
  width: min(var(--max), calc(100% - 2 * var(--pad)));
  margin: 0 auto;
}

main { padding-top: var(--nav-h); }

/* 标题/品牌统一跟随粗体变量 */
h1,
h2,
h3,
.name,
.theme-title,
summary,
.btn.primary b,
strong {
  font-weight: var(--fw-title);
}


/* =========================
   导航栏
   ========================= */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);

  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--bg0) 88%, transparent),
    color-mix(in srgb, var(--bg0) 52%, transparent)
  );

  border-bottom: 1px solid var(--stroke);
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
}

.logo {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--cyan) 95%, white),
    color-mix(in srgb, var(--violet) 95%, white)
  );
  box-shadow:
    0 10px 35px color-mix(in srgb, var(--cyan) 16%, transparent),
    0 10px 35px color-mix(in srgb, var(--violet) 14%, transparent);
  position: relative;
  overflow: hidden;
}

.logo::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: rotate(25deg);
  animation: sweep 2.6s var(--ease) infinite;
  opacity: .6;
}

@keyframes sweep {
  from { transform: translateX(-40%) rotate(25deg); }
  to { transform: translateX(40%) rotate(25deg); }
}

.name { letter-spacing: .6px; line-height: 1.1; }
.tag { font-size: 12px; color: var(--soft); margin-top: 2px; }

.navlinks {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: nowrap;
  justify-content: space-evenly;
  flex: 1 1 auto;
  min-width: 0;
}

.navlinks a {
  font-size: 13px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 14px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: all .2s var(--ease);
}

.navlinks a:hover {
  color: var(--text);
  border-color: var(--stroke);
  background: var(--panel);
}


/* =========================
   Hero 区
   ========================= */

.hero { padding: 36px 0 12px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
  align-items: stretch;
  perspective: 1100px;
  perspective-origin: 50% 40%;
}

.glass {
  border-radius: var(--radius2);
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  transition: background .35s var(--ease), border-color .25s var(--ease);
}

.glass::before {
  content: "";
  position: absolute;
  inset: -2px;
  background:
    radial-gradient(900px 360px at 20% 0%, color-mix(in srgb, var(--cyan) 16%, transparent), transparent 60%),
    radial-gradient(700px 360px at 90% 10%, color-mix(in srgb, var(--violet) 14%, transparent), transparent 60%);
  pointer-events: none;
  opacity: .9;
}

.glass::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--stroke) 85%, transparent) inset;
  pointer-events: none;
  opacity: .95;
}

.headline { padding: 22px; }

.h-top {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  position: relative;
}

h1 {
  margin: 12px 0 10px;
  position: relative;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.06;
  letter-spacing: .3px;
}

.sub {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: clamp(14px, 1.35vw, 16px);
  line-height: 1.65;
  position: relative;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 14px;
  position: relative;
}

.ipbox {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
}

/* Hero 进站分段动画：标签行 → 标题 → 副标题 → 按钮 → IP */
.hero .headline .h-top,
.hero .headline h1,
.hero .headline .sub,
.hero .headline .hero-actions,
.hero .headline .ipbox {
  opacity: 0;
  transform: translateY(10px) scale(.98);
  filter: blur(6px);
  transform-origin: 0 100%;
  transition:
    opacity .55s var(--ease),
    transform .55s var(--ease),
    filter .55s var(--ease);
}

.hero .headline.reveal.on .h-top {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: none;
  transition-delay: .03s;
}

.hero .headline.reveal.on h1 {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: none;
  transition-delay: .10s;
}

.hero .headline.reveal.on .sub {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: none;
  transition-delay: .17s;
}

.hero .headline.reveal.on .hero-actions {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: none;
  transition-delay: .24s;
}

.hero .headline.reveal.on .ipbox {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: none;
  transition-delay: .30s;
}

.ip {
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid var(--stroke);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: min(460px, 100%);
  box-shadow: 0 14px 40px rgba(0, 0, 0, .18);
  position: relative;
  overflow: hidden;
}

.ip::before {
  content: "";
  position: absolute;
  inset: -2px;
  background: radial-gradient(300px 120px at 20% 20%, color-mix(in srgb, var(--gold) 18%, transparent), transparent 60%);
  opacity: .55;
  pointer-events: none;
}

.kbd {
  font-size: 12px;
  color: color-mix(in srgb, var(--bg0) 20%, black);
  background: linear-gradient(135deg, color-mix(in srgb, var(--gold) 95%, white), rgba(255, 255, 255, .70));
  border-radius: 999px;
  padding: 4px 9px;
  font-weight: 900;
  letter-spacing: .2px;
  flex: 0 0 auto;
}

.ip code {
  font-size: 14px;
  color: color-mix(in srgb, var(--text) 92%, transparent);
}

.toast {
  font-size: 13px;
  color: color-mix(in srgb, var(--text) 88%, transparent);
  background: color-mix(in srgb, var(--cyan) 10%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--cyan) 22%, var(--stroke));
  padding: 8px 10px;
  border-radius: 14px;
  display: none;
  align-items: center;
  gap: 8px;
}

.toast.show {
  display: inline-flex;
  animation: pop .36s var(--ease) both;
}

@keyframes pop {
  from { transform: translateY(6px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.hero-media {
  margin-top: 14px;
  border-radius: 22px;
  border: 1px solid var(--stroke);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  overflow: hidden;
  box-shadow: 0 18px 55px rgba(0, 0, 0, .24);
  position: relative;
  transform-style: preserve-3d;
}

.hero-media .img {
  height: 0;
  padding-top: 56.25%; /* 16:9 */
  background:
    radial-gradient(320px 240px at 25% 40%, color-mix(in srgb, var(--cyan) 14%, transparent), transparent 65%),
    radial-gradient(280px 240px at 75% 35%, color-mix(in srgb, var(--violet) 12%, transparent), transparent 68%),
    linear-gradient(135deg, color-mix(in srgb, var(--text) 7%, transparent), transparent),
    url("../img/banners/main.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.hero-media .ph {
  color: var(--muted);
  font-size: 13px;
  border: 1px dashed color-mix(in srgb, var(--stroke2) 70%, transparent);
  padding: 10px 12px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel) 75%, transparent);
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: -2px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--text) 7%, transparent), transparent 40%);
  pointer-events: none;
  opacity: .65;
}


/* =========================
   区块布局
   ========================= */

section {
  padding: 26px 0;
  position: relative;
}

/* 区块间雾化过渡，避免边界过硬 */
section::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -30px;
  height: 60px;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0),
    color-mix(in srgb, var(--bg0) 22%, transparent),
    rgba(0, 0, 0, 0)
  );
  opacity: .55;
}

html[data-mode="light"] section::before {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0),
    color-mix(in srgb, var(--bg0) 12%, transparent),
    rgba(255, 255, 255, 0)
  );
  opacity: .45;
}

section:first-of-type::before { display: none; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

h2 { margin: 0; font-size: 20px; letter-spacing: .2px; }

.desc {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  max-width: 62ch;
}


/* =========================
   页脚
   ========================= */

footer {
  padding: 28px 0 36px;
  color: var(--soft);
  font-size: 12px;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--stroke);
  padding-top: 16px;
}

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

.links a {
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: var(--panel);
  color: var(--muted);
  transition: all .2s var(--ease);
}

.links a:hover {
  color: var(--text);
  border-color: var(--stroke2);
  background: var(--panel2);
}


/* =========================
   响应式
   ========================= */

.nav-toggle {
  display: none;
}

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; }
  .cards .card { grid-column: span 6; }
  .shots .shot { grid-column: span 6; }
  .stats .stat { grid-column: span 6; }
  .split { grid-template-columns: 1fr; }

  .brand .tag { display: none; }

  .brand {
    min-width: 0;
    flex: 1 1 auto;
  }

  #copyIP { display: none !important; }

  /* 手机端：标题/文案换行，角标放下面 */
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .section-head .pill {
    align-self: flex-start;
    max-width: 100%;
    white-space: normal;
  }

  /* 汉堡按钮（玻璃 + 主题描边） */
  .nav-toggle {
    display: flex;
    flex-direction: column;
    width: 38px;
    height: 38px;
    border-radius: 14px;
    padding: 0;
    gap: 4px;

    position: relative;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;

    background: linear-gradient(180deg, var(--panel2), var(--panel));
    border: 1px solid color-mix(in srgb, var(--cyan) 26%, var(--stroke2));

    box-shadow:
      0 16px 44px rgba(0, 0, 0, .22),
      0 0 0 1px color-mix(in srgb, var(--cyan) 10%, transparent) inset;

    transition:
      transform .18s var(--ease),
      border-color .18s var(--ease),
      box-shadow .18s var(--ease);
  }

  .nav-toggle:hover {
    border-color: color-mix(in srgb, var(--cyan) 36%, var(--stroke2));
    box-shadow:
      0 18px 52px rgba(0, 0, 0, .26),
      0 0 0 1px color-mix(in srgb, var(--cyan) 16%, transparent) inset;
  }

  .nav-toggle:active { transform: scale(.98); }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--text) 78%, transparent);
    will-change: transform, opacity;
    transition:
      transform .18s var(--ease),
      opacity .18s var(--ease),
      background .18s var(--ease);
  }

  .nav-toggle.is-open span { background: var(--text); }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(40deg); }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-40deg); }

  .nav-toggle::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(
      135deg,
      color-mix(in srgb, var(--cyan) 85%, white),
      color-mix(in srgb, var(--violet) 85%, white),
      color-mix(in srgb, var(--pink) 75%, white)
    );
    -webkit-mask:
      linear-gradient(#000 0 0) content-box,
      linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: .55;
    pointer-events: none;
  }

  .nav-toggle:hover::before { opacity: .78; }

  /* 手机端导航：右侧抽屉（.is-open 控制开关） */
  .navlinks {
    position: fixed;
    top: var(--nav-h);
    right: 0;
    left: auto;
    width: min(430px, 50vw);
    height: 40vh;
    padding: 12px 18px 14px;

    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;

    background: linear-gradient(
      180deg,
      color-mix(in srgb, var(--bg0) 90%, transparent),
      color-mix(in srgb, var(--bg1) 80%, transparent)
    );

    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);

    border-radius: 12px;
    border-left: 1px solid var(--stroke);
    box-shadow: none;
    z-index: 998;

    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;

    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;

    transition: transform .26s var(--ease), opacity .26s var(--ease);

    font-family: var(--font-body);
    font-weight: var(--fw-body);
  }

  .navlinks.is-open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  /* 手机端菜单项：紧凑列表 + 分隔线 */
  .navlinks a {
    display: block;
    padding: 10px 2px;
    text-align: left;

    border: none;
    border-radius: 0;
    background: transparent;

    color: var(--soft);
    font-size: 14px;
    line-height: 1.4;
    white-space: normal;
  }

  .navlinks a + a {
    border-top: 1px solid color-mix(in srgb, var(--stroke) 60%, transparent);
  }

  html[data-mode="light"] .navlinks a + a {
    border-top: 1px solid color-mix(in srgb, var(--stroke) 40%, transparent);
  }

  .navlinks a:hover {
    color: var(--text);
    background: color-mix(in srgb, var(--panel) 36%, transparent);
  }

  .float-panel { animation-duration: 7.5s; }
}

@media (max-width: 520px) {
  .cards .card,
  .shots .shot { grid-column: span 12; }

  .stats .stat { grid-column: span 12; }

  /* 只让 Hero 区按钮竖排（不影响导航 CTA） */
  .hero-actions .btn,
  .ipbox .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-actions { flex-direction: column; }
  .ipbox { flex-direction: column; align-items: stretch; }
  .toast { width: 100%; justify-content: center; }

  .footer-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .links {
    width: 100%;
    justify-content: space-between;
  }

  .links a {
    flex: 1 1 0;
    text-align: center;
  }

  /* 顶部导航：CTA 保持一行并缩紧尺寸 */
  .cta {
    width: auto;
    flex-wrap: nowrap;
    gap: 8px;
    align-items: center;
  }

  .cta .btn,
  .cta .theme-btn {
    width: auto;
    padding: 8px 10px;
    font-size: 12px;
    border-radius: 14px;
    white-space: nowrap;
    box-shadow: 0 10px 26px rgba(0, 0, 0, .18);
  }

  #copyIpTop {
    padding: 8px 10px;
    font-size: 12px;
  }

  .cta #copyIpTop span { display: none; }

  .nav .bar {
    gap: 10px;
    padding: 10px 0;
  }

  .nav .brand {
    min-width: 0;
    flex: 1 1 auto;
    gap: 8px;
  }

  .nav .logo {
    width: 30px;
    height: 30px;
    border-radius: 12px;
    flex: 0 0 auto;
  }

  .nav .brand > span { min-width: 0; }

  .nav .name {
    font-size: 14px;
    letter-spacing: .2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brand { gap: 8px; }

  .logo {
    width: 34px;
    height: 34px;
    border-radius: 12px;
  }

  .name {
    font-size: 16px;
    line-height: 1.1;
    white-space: nowrap;
  }
}
  #btnPlay svg {
    display: block;
}

  #btnPlay svg * {
    fill: currentColor;
}