/* =====================================================================
   星舰7 证据库 · 主样式
   暗色沉浸式 · 网格 + 光晕 + 逐层进场
   ===================================================================== */

:root {
  --bg: #050b15;
  --bg-2: #08111e;
  --bg-3: #0c1828;
  --line: rgba(130, 180, 255, 0.13);
  --line-2: rgba(140, 190, 255, 0.24);
  --fg: #eaf2ff;
  --fg-2: #9fb2cc;
  --fg-3: #66799a;
  --blue: #2f8bff;
  --blue-dim: rgba(47, 139, 255, 0.13);
  --cyan: #2ad4f5;
  --cyan-dim: rgba(42, 212, 245, 0.12);
  --red: #ff4a4a;
  --red-dim: rgba(255, 74, 74, 0.1);
  --amber: #f0b34c;

  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
    "MiSans", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Roboto Mono", ui-monospace, Menlo, monospace;

  --ease: cubic-bezier(0.22, 0.75, 0.3, 1);
  --max: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(1200px 620px at 50% -8%, rgba(30, 110, 255, 0.16), transparent 68%),
    radial-gradient(900px 520px at 92% 4%, rgba(42, 212, 245, 0.09), transparent 62%);
  color: var(--fg);
  font: 400 16px/1.75 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

h1, h2, h3, p, ul, ol, figure {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  background: none;
  border: 0;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

/* ------------------------------ 全局装饰 ------------------------------ */

.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 2px;
  z-index: 200;
  pointer-events: none;
}

.scroll-progress i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  box-shadow: 0 0 12px rgba(76, 125, 255, 0.7);
}

.cursor-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(76, 125, 255, 0.1) 0%, transparent 62%);
  transition: opacity 0.5s ease;
  will-change: transform;
}

/* ------------------------------ 导航 ------------------------------ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}

.nav.is-stuck {
  background: rgba(8, 9, 12, 0.72);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  backdrop-filter: saturate(160%) blur(18px);
  border-bottom-color: var(--line);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  flex: none;
}

.logo-mark {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 0 18px rgba(76, 125, 255, 0.5);
  position: relative;
}

.logo-mark::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 2px;
  background: var(--bg);
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--fg-2);
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--fg);
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
  flex: none;
  padding: 9px 18px;
  font-size: 13.5px;
  font-weight: 500;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  transition: all 0.24s ease;
}

.nav-cta:hover {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

/* ------------------------------ 首屏 ------------------------------ */

.hero {
  position: relative;
  min-height: 100vh;
  height: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 130px 28px 120px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: -20%;
  background-image:
    linear-gradient(rgba(120, 180, 255, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 180, 255, 0.11) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse 78% 68% at 50% 40%, #000 18%, transparent 82%);
  mask-image: radial-gradient(ellipse 78% 68% at 50% 40%, #000 18%, transparent 82%);
  transform: perspective(600px) rotateX(46deg) translateY(-8%);
  transform-origin: 50% 0;
  opacity: 0.75;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.85;
  will-change: transform;
}

.orb-1 {
  width: 780px;
  height: 780px;
  top: -26%;
  left: 50%;
  margin-left: -390px;
  background: radial-gradient(circle, rgba(40, 130, 255, 0.60), rgba(40, 130, 255, 0) 66%);
  animation: drift 16s ease-in-out infinite;
}

.orb-2 {
  width: 620px;
  height: 620px;
  bottom: -26%;
  right: -10%;
  background: radial-gradient(circle, rgba(32, 205, 240, 0.42), rgba(32, 205, 240, 0) 66%);
  animation: drift 21s ease-in-out infinite reverse;
}

@keyframes drift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(4%, -5%, 0) scale(1.09); }
}

.hero-noise {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px 7px 12px;
  font-size: 13px;
  color: var(--fg-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 0.15s forwards;
}

.hero-eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 12px var(--blue);
  animation: blink 2.6s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hero-title {
  margin: 34px 0 0;
  font-size: clamp(44px, 9.2vw, 112px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.hero-title .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.06em;
}

.hero-title .line-inner {
  display: block;
  transform: translateY(110%);
  animation: lineUp 1.15s var(--ease) forwards;
}

.hero-title .line:nth-child(1) .line-inner { animation-delay: 0.28s; }
.hero-title .line:nth-child(2) .line-inner { animation-delay: 0.42s; }

.hero-title .line:nth-child(2) .line-inner {
  background: linear-gradient(96deg, #ffffff 0%, #4da3ff 34%, #9fe4ff 62%, #ffffff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

@keyframes lineUp {
  to { transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

.hero-sub {
  max-width: 640px;
  margin: 30px auto 0;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--fg-2);
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 0.72s forwards;
}

.hero-sub b {
  color: var(--fg);
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: 0;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 0.88s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 999px;
  transition: all 0.26s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--fg);
  color: #0a0b0f;
  box-shadow: 0 8px 30px -10px rgba(255, 255, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px -12px rgba(255, 255, 255, 0.55);
}

.btn-arrow {
  transition: transform 0.26s var(--ease);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-ghost {
  border: 1px solid var(--line-2);
  color: var(--fg-2);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  color: var(--fg);
  border-color: var(--fg);
  background: rgba(255, 255, 255, 0.04);
}

.hero-foot {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 30px;
  z-index: 2;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 1.1s forwards;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--fg-3);
  flex-wrap: wrap;
}

.hero-meta .sep {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--fg-3);
}

.scroll-hint {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--fg-3);
  letter-spacing: 0.1em;
  flex: none;
}

.scroll-hint i {
  display: block;
  width: 1px;
  height: 34px;
  background: linear-gradient(180deg, var(--fg-3), transparent);
  position: relative;
  overflow: hidden;
}

.scroll-hint i::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 12px;
  background: var(--fg);
  animation: scrollLine 2.2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: translateY(-14px); opacity: 0; }
  40% { opacity: 1; }
  100% { transform: translateY(36px); opacity: 0; }
}

/* ------------------------------ 章节通用 ------------------------------ */

.sec {
  position: relative;
  padding: 130px 0;
  border-top: 1px solid var(--line);
}

.sec-kicker {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--blue);
  text-transform: uppercase;
}

.sec-title {
  margin-top: 18px;
  font-size: clamp(30px, 4.6vw, 54px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.038em;
  max-width: 20em;
}

.sec-lead {
  margin-top: 22px;
  max-width: 40em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--fg-2);
}

/* 进场 */
.js-anim [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.js-anim [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ------------------------------ 事实 ------------------------------ */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 70px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}

.stat-card {
  background: var(--bg);
  padding: 40px 28px 34px;
  transition: background 0.4s ease;
}

.stat-card:hover {
  background: var(--bg-2);
}

.stat-value {
  display: flex;
  align-items: baseline;
  gap: 5px;
  font-family: var(--mono);
  font-size: clamp(38px, 4.4vw, 60px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(180deg, #ffffff, #a9c6e6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-value em {
  font-size: 15px;
  font-style: normal;
  color: var(--fg-3);
  -webkit-text-fill-color: var(--fg-3);
  letter-spacing: 0;
}

.stat-label {
  margin-top: 16px;
  font-size: 14px;
  color: var(--fg-2);
}

.stat-note {
  margin-top: 3px;
  font-size: 12px;
  color: var(--fg-3);
}

/* ------------------------------ 型号对照 ------------------------------ */

.vs {
  display: grid;
  grid-template-columns: 1fr 88px 1fr;
  align-items: stretch;
  margin-top: 64px;
}

.vs-side {
  padding: 34px 32px 30px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.008));
}

.vs-side-warn {
  border-color: rgba(255, 74, 74, 0.28);
  background: linear-gradient(180deg, rgba(255, 74, 74, 0.07), rgba(255, 74, 74, 0.01));
}

.vs-tag {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--fg-3);
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.vs-tag-warn {
  color: var(--red);
  border-color: rgba(255, 74, 74, 0.35);
  background: rgba(255, 74, 74, 0.08);
}

.vs-name {
  margin-top: 20px;
  font-size: clamp(46px, 6vw, 76px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  font-family: var(--mono);
}

.vs-side-warn .vs-name {
  color: var(--red);
  text-shadow: 0 0 40px rgba(255, 74, 74, 0.3);
}

.vs-alias {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--fg-3);
}

.vs-list {
  margin-top: 26px;
  border-top: 1px solid var(--line);
}

.vs-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.vs-list span {
  color: var(--fg-3);
  flex: none;
}

.vs-list b {
  font-weight: 500;
  text-align: right;
  font-family: var(--mono);
  font-size: 13.5px;
  letter-spacing: -0.01em;
}

.vs-list b.warn {
  color: #ff8a8a;
}

.vs-divider {
  display: grid;
  place-items: center;
  position: relative;
}

.vs-divider::before {
  content: "";
  position: absolute;
  top: 8%;
  bottom: 8%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-2), transparent);
}

.vs-neq {
  position: relative;
  z-index: 1;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: var(--bg);
  font-size: 22px;
  color: var(--fg);
  font-family: var(--mono);
}

.chip-proof {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.proof-fig {
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-2);
}

.proof-fig img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  object-position: center 26%;
  transition: transform 0.7s var(--ease);
}

.proof-fig:hover img {
  transform: scale(1.03);
}

.proof-fig figcaption {
  padding: 14px 18px;
  font-size: 12.5px;
  color: var(--fg-3);
  border-top: 1px solid var(--line);
}

/* ------------------------------ 证据库 ------------------------------ */

.tabs {
  display: flex;
  gap: 8px;
  margin-top: 54px;
  flex-wrap: wrap;
}

.tab {
  padding: 10px 18px;
  font-size: 13.5px;
  color: var(--fg-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: all 0.24s var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.tab span {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--fg-3);
  padding: 1px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.tab:hover {
  color: var(--fg);
  border-color: var(--line-2);
}

.tab.is-on {
  background: var(--fg);
  color: #0a0b0f;
  border-color: var(--fg);
}

.tab.is-on span {
  background: rgba(0, 0, 0, 0.12);
  color: #0a0b0f;
}

.egrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 30px;
}

.ecard {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-2);
  transition: border-color 0.3s ease, transform 0.4s var(--ease), box-shadow 0.4s ease;
  opacity: 0;
  transform: translateY(18px);
  animation: cardIn 0.6s var(--ease) forwards;
}

@keyframes cardIn {
  to { opacity: 1; transform: none; }
}

.ecard:hover {
  border-color: rgba(76, 125, 255, 0.5);
  transform: translateY(-4px);
  box-shadow: 0 22px 50px -24px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(76, 125, 255, 0.18);
}

.ecard-img {
  display: block;
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #15181f;
}

.ecard-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.6s var(--ease);
}

.ecard:hover .ecard-img img {
  transform: scale(1.045);
}

.ecard-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 11px;
  padding: 4px 9px;
  border-radius: 3px;
  background: rgba(8, 9, 12, 0.78);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--fg-2);
  letter-spacing: 0.03em;
}

.ecard-cap {
  display: block;
  padding: 13px 15px 15px;
  font-size: 13px;
  color: var(--fg-2);
  border-top: 1px solid var(--line);
  line-height: 1.55;
}

.ecard-zoom {
  display: grid;
  position: absolute;
  right: 12px;
  bottom: 58px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: #0a0b0f;
  font-size: 14px;
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.28s var(--ease);
}

.ecard:hover .ecard-zoom {
  opacity: 1;
  transform: scale(1);
}

/* ------------------------------ 时间线 ------------------------------ */

.tl {
  margin-top: 66px;
  position: relative;
  padding-left: 34px;
}

.tl::before {
  content: "";
  position: absolute;
  left: 4.5px;
  top: 8px;
  bottom: 10px;
  width: 1.5px;
  border-radius: 1px;
  background: linear-gradient(180deg, rgba(47, 139, 255, 0.7), rgba(42, 212, 245, 0.32) 24%, rgba(255, 255, 255, 0.14) 88%, transparent);
}

.tl-item {
  position: relative;
  padding-bottom: 42px;
}

.tl-item:last-child {
  padding-bottom: 0;
}

.tl-dot {
  position: absolute;
  left: -34px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid rgba(255, 255, 255, 0.32);
  transition: all 0.3s ease;
}

.tl-item.is-in .tl-dot {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(76, 125, 255, 0.12);
}

.tl-hot .tl-dot {
  border-color: var(--red);
  background: var(--red);
  box-shadow: 0 0 16px rgba(255, 74, 74, 0.6);
}

.tl-item time {
  display: block;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--blue);
  letter-spacing: 0.08em;
}

.tl-item h3 {
  margin-top: 8px;
  font-size: clamp(18px, 2.1vw, 23px);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.tl-hot h3 {
  color: #ff9a9a;
}

.tl-item p {
  margin-top: 8px;
  max-width: 44em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--fg-2);
}

/* ------------------------------ 车主行动 ------------------------------ */

.action-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 60px;
}

.action-card {
  position: relative;
  padding: 34px 30px 30px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg-2);
  overflow: hidden;
  transition: all 0.4s var(--ease);
}

.action-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.action-card:hover {
  background: var(--bg-3);
  border-color: rgba(76, 125, 255, 0.3);
  transform: translateY(-4px);
}

.action-card:hover::before {
  opacity: 1;
}

.action-idx {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--blue);
  letter-spacing: 0.1em;
}

.action-card h3 {
  margin-top: 16px;
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.action-card p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fg-2);
}

.action-go {
  display: inline-block;
  margin-top: 22px;
  font-size: 13.5px;
  color: var(--fg);
  transition: transform 0.28s var(--ease);
}

.action-card:hover .action-go {
  transform: translateX(4px);
}

/* ------------------------------ 结尾 ------------------------------ */

.outro {
  padding: 140px 0 150px;
  border-top: 1px solid var(--line);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.outro::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 800px;
  height: 800px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(76, 125, 255, 0.14), transparent 62%);
  filter: blur(40px);
  pointer-events: none;
}

.outro .wrap {
  position: relative;
  z-index: 1;
}

.outro-title {
  font-size: clamp(30px, 4.4vw, 52px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.15;
}

.outro-text {
  margin: 20px auto 0;
  max-width: 32em;
  font-size: 16px;
  color: var(--fg-2);
}

.outro-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
}

/* ------------------------------ 页脚 ------------------------------ */

.foot {
  padding: 50px 0 60px;
  border-top: 1px solid var(--line);
  background: #06070a;
}

.foot p {
  font-size: 12px;
  line-height: 1.9;
  color: var(--fg-3);
  max-width: 62em;
}

.foot-meta {
  margin-top: 18px;
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

/* ------------------------------ 灯箱 ------------------------------ */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 70px;
  background: rgba(5, 6, 9, 0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lb-fig {
  max-width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.lb-fig img {
  max-width: 100%;
  max-height: calc(100vh - 190px);
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 40px 100px -40px rgba(0, 0, 0, 0.9);
}

.lb-fig figcaption {
  font-size: 13.5px;
  color: var(--fg-2);
  text-align: center;
}

.lb-close,
.lb-prev,
.lb-next {
  position: absolute;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.05);
  color: var(--fg);
  font-size: 20px;
  line-height: 1;
  transition: all 0.22s ease;
}

.lb-close:hover,
.lb-prev:hover,
.lb-next:hover {
  background: var(--fg);
  color: var(--bg);
}

.lb-close { top: 22px; right: 24px; font-size: 24px; }
.lb-prev { left: 20px; top: 50%; margin-top: -23px; }
.lb-next { right: 20px; top: 50%; margin-top: -23px; }

/* ------------------------------ Toast ------------------------------ */

.toast {
  position: fixed;
  left: 50%;
  bottom: 36px;
  transform: translate(-50%, 14px);
  z-index: 400;
  padding: 11px 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  color: #0a0b0f;
  font-size: 13.5px;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: all 0.28s var(--ease);
}

.toast.is-on {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ------------------------------ 响应式 ------------------------------ */

@media (max-width: 1000px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .vs {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .vs-divider {
    height: 64px;
  }

  .vs-divider::before {
    top: 0;
    bottom: 0;
    left: 50%;
    width: 1px;
    height: auto;
    background: linear-gradient(90deg, transparent, var(--line-2), transparent);
  }

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

  .egrid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .wrap,
  .nav-inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .nav-links {
    display: none;
  }

  .nav-cta {
    margin-left: auto;
  }

  .hero {
    padding-top: 110px;
    min-height: 92vh;
  }

  .hero-foot {
    position: static;
    flex-direction: column;
    align-items: flex-start;
    gap: 26px;
    padding: 0;
    margin-top: 44px;
  }

  .scroll-hint {
    display: none;
  }

  .sec {
    padding: 84px 0;
  }

  .stat-grid {
    grid-template-columns: 1fr;
    margin-top: 44px;
  }

  .stat-card {
    padding: 26px 22px;
    display: flex;
    align-items: baseline;
    gap: 16px;
    flex-wrap: wrap;
  }

  .stat-label {
    margin-top: 0;
  }

  .stat-note {
    width: 100%;
    margin-left: 0;
  }

  .vs-side {
    padding: 26px 22px;
  }

  .chip-proof {
    grid-template-columns: 1fr;
  }

  .proof-fig img {
    height: 220px;
  }

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

  .ecard-zoom {
    display: none;
  }

  .tabs {
    margin-top: 36px;
    gap: 6px;
  }

  .tab {
    padding: 8px 13px;
    font-size: 12.5px;
  }

  .tl {
    padding-left: 26px;
  }

  .tl-dot {
    left: -26px;
  }

  .lightbox {
    padding: 56px 16px;
  }

  .lb-prev, .lb-next {
    display: none;
  }

  .foot {
    padding: 38px 0 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .js-anim [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .hero-title .line-inner {
    transform: none;
  }
}