/* ENC / Li Auto 风格公开站设计系统 —— 有书营销站与登录页共用 */

:root {
  --enc-black: #0b0d10;
  --enc-ink: #16181d;
  --enc-white: #ffffff;
  --enc-gray-50: #fafafb;
  --enc-gray-100: #f3f4f7;
  --enc-gray-200: #e7e8eb;
  --enc-gray-400: #9aa0a8;
  --enc-gray-600: #5f6471;
  --enc-gray-800: #2a2d34;
  --enc-accent: #1eb8a8;
  --enc-accent-deep: #0f7d72;
  --enc-blue: #0052d9;
  --enc-header-h: 48px;
  --enc-font: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue',
    'Microsoft YaHei', 'Segoe UI', sans-serif;
  --enc-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --enc-radius: 6px;
  --enc-radius-lg: 16px;
}

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

.enc-body {
  margin: 0;
  padding: 0;
  font-family: var(--enc-font);
  background: var(--enc-white);
  color: var(--enc-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.enc-body a {
  color: inherit;
  text-decoration: none;
}

.enc-body button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

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

/* ── 顶栏 ── */
.enc-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--enc-header-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  column-gap: 0;
  padding: 0 clamp(20px, 4vw, 40px);
  transition: background 0.35s var(--enc-ease), color 0.35s var(--enc-ease),
    border-color 0.35s var(--enc-ease), box-shadow 0.35s var(--enc-ease);
  border-bottom: 1px solid transparent;
}

/* 透明（深色 Hero 之上，浅色文字） */
.enc-header[data-theme='dark'] {
  background: transparent;
  color: #fff;
}

.enc-header[data-theme='dark'] .enc-header-links a:hover {
  opacity: 0.65;
}

/* 滚动后 / 浅色区块：白底深色文字 */
.enc-header[data-theme='light'],
.enc-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  color: var(--enc-ink);
  border-bottom-color: rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.enc-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin-right: clamp(24px, 4vw, 40px);
}

.enc-logo .brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--enc-accent);
}

.enc-logo .brand-icon img {
  width: 18px;
  height: 18px;
  filter: brightness(0) invert(1);
}

.enc-logo .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.enc-logo .brand-text strong {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.enc-logo .brand-text span {
  font-size: 11px;
  opacity: 0.7;
}

.enc-header-links {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  min-width: 0;
}

.enc-header-links a {
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 400;
  white-space: nowrap;
  border-radius: 4px;
  opacity: 1;
  transition: opacity 0.2s;
}

.enc-header-links a:hover {
  opacity: 0.65;
}

.enc-header-links a.active {
  font-weight: 500;
  opacity: 1;
}

.enc-header[data-theme='light'] .enc-header-links a.active,
.enc-header.is-scrolled .enc-header-links a.active {
  font-weight: 500;
}

.enc-header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* ── 按钮 ── */
.enc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 96px;
  padding: 9px 22px;
  border-radius: 22px;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.25s var(--enc-ease), border-color 0.25s var(--enc-ease),
    color 0.25s, transform 0.15s;
}

.enc-btn:active {
  transform: translateY(1px);
}

.enc-btn--solid {
  background: var(--enc-accent);
  color: #fff;
}

.enc-btn--solid:hover {
  background: var(--enc-accent-deep);
}

.enc-btn--dark {
  background: var(--enc-ink);
  color: #fff;
}

.enc-btn--dark:hover {
  background: #000;
}

.enc-btn--outline {
  border: 1px solid currentColor;
  background: transparent;
}

.enc-btn--outline:hover {
  background: rgba(0, 0, 0, 0.06);
}

.enc-header[data-theme='dark'] .enc-btn--outline:hover {
  background: rgba(255, 255, 255, 0.14);
}

.enc-btn--ghost {
  padding: 9px 14px;
  min-width: 0;
  opacity: 0.9;
}

.enc-btn--ghost:hover {
  opacity: 1;
}

.enc-btn--lg {
  min-width: 150px;
  padding: 14px 34px;
  font-size: 15px;
  border-radius: 26px;
}

/* ── 首页全屏容器 ── */
.enc-home {
  scroll-snap-type: y proximity;
}

.enc-section {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  scroll-snap-align: start;
  padding: calc(var(--enc-header-h) + 32px) clamp(20px, 5vw, 64px) 56px;
  overflow: hidden;
}

.enc-section--auto {
  min-height: auto;
  scroll-snap-align: none;
}

.enc-section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 40px;
}

.enc-eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.65;
  margin: 0 0 14px;
}

.enc-section-head h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 16px;
}

.enc-section-head p {
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--enc-gray-600);
  margin: 0;
  line-height: 1.65;
}

.enc-section--dark {
  background: var(--enc-black);
  color: #fff;
}

.enc-section--dark .enc-section-head p {
  color: rgba(255, 255, 255, 0.72);
}

.enc-section--gray {
  background: var(--enc-gray-100);
}

.enc-section--soft {
  background: var(--enc-gray-50);
}

/* ── Hero 视差 ── */
.enc-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  color: #fff;
  overflow: hidden;
  scroll-snap-align: start;
  background: var(--enc-black);
}

.enc-hero__layers {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.enc-hero__layer {
  position: absolute;
  inset: -8%;
  will-change: transform, filter;
  transition: filter 0.15s ease-out;
}

.enc-hero__layer--bg {
  background-size: cover;
  background-position: center 52%;
  background-repeat: no-repeat;
  background-image:
    radial-gradient(ellipse 80% 60% at 50% 30%, #1a3550 0%, transparent 60%),
    linear-gradient(180deg, #0b1522 0%, #0b0d10 100%);
}

.enc-hero__layer--glow {
  inset: 0;
  background: radial-gradient(
    ellipse 70% 50% at 50% 68%,
    rgba(30, 184, 168, 0.28) 0%,
    transparent 70%
  );
  opacity: 0.4;
}

.enc-hero__vignette {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.5) 0%,
    rgba(0, 0, 0, 0.12) 34%,
    rgba(0, 0, 0, 0.05) 55%,
    rgba(0, 0, 0, 0.55) 100%
  );
}

/* 明亮暖光首屏（对齐灵栖官网有书产品页） */
.enc-hero--bright {
  background: #f4efe8;
}

.enc-hero--bright .enc-hero__layer--glow {
  background: radial-gradient(
    ellipse 72% 48% at 50% 26%,
    rgba(120, 90, 160, 0.12) 0%,
    transparent 70%
  );
  opacity: 1;
}

.enc-hero--bright .enc-hero__vignette {
  background:
    linear-gradient(180deg, rgba(28, 18, 32, 0.42) 0%, rgba(28, 18, 32, 0.18) 38%, rgba(28, 18, 32, 0.08) 62%, rgba(28, 18, 32, 0.26) 100%),
    radial-gradient(ellipse 72% 48% at 50% 26%, rgba(0, 0, 0, 0.26), transparent 72%);
}

.enc-hero--bright .enc-hero__content {
  text-shadow: 0 2px 22px rgba(0, 0, 0, 0.32), 0 1px 2px rgba(0, 0, 0, 0.24);
}

.enc-hero--bright .enc-hero__subtitle {
  letter-spacing: 0.08em;
  opacity: 0.95;
}

.enc-hero--bright .enc-hero__title em {
  background: none;
  -webkit-text-fill-color: #fff;
  color: #fff;
}

.enc-hero__grain {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.enc-hero__content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding: calc(var(--enc-header-h) + 84px) 24px 0;
}

.enc-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.8;
  margin: 0 0 22px;
}

.enc-hero__pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--enc-accent);
  box-shadow: 0 0 0 0 rgba(30, 184, 168, 0.6);
  animation: encPulse 2s infinite;
}

@keyframes encPulse {
  0% { box-shadow: 0 0 0 0 rgba(30, 184, 168, 0.5); }
  70% { box-shadow: 0 0 0 10px rgba(30, 184, 168, 0); }
  100% { box-shadow: 0 0 0 0 rgba(30, 184, 168, 0); }
}

.enc-hero__title {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.08;
  margin: 0 0 18px;
}

.enc-hero__title em {
  font-style: normal;
  background: linear-gradient(120deg, var(--enc-accent), #6fe3d4);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.enc-hero__subtitle {
  font-size: clamp(14px, 2vw, 19px);
  font-weight: 400;
  letter-spacing: 0.3em;
  opacity: 0.9;
  margin: 0 0 14px;
}

.enc-hero__tagline {
  font-size: 15px;
  opacity: 0.7;
  margin: 0 0 36px;
}

.enc-hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.enc-hero__note {
  margin: 22px 0 0;
  font-size: 13px;
  opacity: 0.6;
}

.enc-hero__scenes {
  position: absolute;
  bottom: 40px;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  gap: clamp(16px, 4vw, 48px);
  justify-content: center;
  flex-wrap: wrap;
  font-size: 13px;
  letter-spacing: 0.1em;
  opacity: 0.7;
}

.enc-hero__scenes span {
  position: relative;
  padding-left: 18px;
}

.enc-hero__scenes span::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--enc-accent);
}

.enc-hero .enc-hero__content .btn {
  border-radius: 26px;
}

/* Hero CTA 用平台 btn 时的适配（marketing 注入 btn-primary/secondary） */
.enc-hero__actions .btn,
.enc-hero__actions .enc-btn {
  min-width: 150px;
  padding: 14px 34px;
  font-size: 15px;
  border-radius: 26px;
}

/* ── 能力网格（ENC ProductGrid 简化：4 等分大图） ── */
.enc-grid {
  width: 100%;
  max-width: 1400px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  height: min(70vh, 620px);
}

.enc-grid__cell {
  position: relative;
  overflow: hidden;
  background: #111;
  border-radius: 4px;
  color: #fff;
  display: flex;
}

.enc-grid__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--enc-ease);
}

.enc-grid__cell:hover .enc-grid__img {
  transform: scale(1.05);
}

.enc-grid__cell::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.25) 0%,
    rgba(0, 0, 0, 0.05) 40%,
    rgba(0, 0, 0, 0.68) 100%
  );
}

.enc-grid__cell--placeholder .enc-grid__img {
  background: linear-gradient(160deg, #16323f, #0b0d10);
}

.enc-grid__body {
  position: relative;
  z-index: 2;
  margin-top: auto;
  padding: 24px 22px;
}

.enc-grid__body h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 8px;
}

.enc-grid__body p {
  font-size: 13px;
  line-height: 1.55;
  opacity: 0.82;
  margin: 0;
}

/* ── 流程横滑 ── */
.enc-strip {
  width: 100%;
  max-width: 1180px;
}

.enc-strip__viewport {
  overflow: hidden;
}

.enc-strip__track {
  display: flex;
  transition: transform 0.5s var(--enc-ease);
}

.enc-strip__slide {
  flex: 0 0 100%;
  min-width: 100%;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
}

.enc-strip__media {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--enc-radius-lg);
  overflow: hidden;
  background: linear-gradient(160deg, #16323f, #0b0d10);
}

.enc-strip__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: encKenBurns 12s ease-in-out infinite alternate;
}

@keyframes encKenBurns {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

.enc-strip__step {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--enc-accent-deep);
  margin: 0 0 12px;
}

.enc-strip__copy h3 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  margin: 0 0 14px;
}

.enc-strip__copy p {
  font-size: 16px;
  color: var(--enc-gray-600);
  line-height: 1.7;
  margin: 0;
}

.enc-strip__dots {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 32px;
}

.enc-strip__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--enc-gray-400);
  opacity: 0.5;
  transition: opacity 0.2s, transform 0.2s, background 0.2s;
}

.enc-strip__dot.is-active {
  opacity: 1;
  background: var(--enc-accent);
  transform: scale(1.3);
}

/* ── 双卡 Promo ── */
.enc-dual {
  width: 100%;
  max-width: 1180px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.enc-dual__card {
  position: relative;
  min-height: 340px;
  border-radius: var(--enc-radius-lg);
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  color: #fff;
}

.enc-dual__card--accent {
  background: linear-gradient(150deg, #0f7d72, #16323f);
}

.enc-dual__card--ink {
  background: linear-gradient(150deg, #23272f, #0b0d10);
}

.enc-dual__card h3 {
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 12px;
}

.enc-dual__card p {
  font-size: 15px;
  opacity: 0.85;
  line-height: 1.6;
  margin: 0 0 22px;
  max-width: 34ch;
}

/* ── 品牌宣言 ── */
.enc-statement {
  text-align: center;
  max-width: 760px;
}

.enc-statement h2 {
  font-size: clamp(30px, 4.5vw, 52px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0 0 22px;
}

.enc-statement p {
  font-size: clamp(15px, 1.8vw, 19px);
  color: var(--enc-gray-600);
  line-height: 1.7;
  margin: 0;
}

/* ── 数据条 ── */
.enc-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px 72px;
}

.enc-stats__item {
  text-align: center;
  min-width: 120px;
}

.enc-stats__value {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--enc-ink);
}

.enc-stats__label {
  font-size: 13px;
  color: var(--enc-gray-600);
  margin-top: 8px;
}

/* ── 案例 peek ── */
.enc-peek {
  width: 100%;
  max-width: 1180px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.enc-peek__card {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--enc-radius-lg);
  overflow: hidden;
  background: #111;
  color: #fff;
  display: flex;
  align-items: flex-end;
}

.enc-peek__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--enc-ease);
}

.enc-peek__card:hover .enc-peek__img {
  transform: scale(1.05);
}

.enc-peek__card--placeholder .enc-peek__img {
  background: linear-gradient(160deg, #2a3550, #0b0d10);
}

.enc-peek__card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 30%, rgba(0, 0, 0, 0.78) 100%);
}

.enc-peek__body {
  position: relative;
  z-index: 2;
  padding: 24px 22px;
}

.enc-peek__tag {
  display: inline-block;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  margin-bottom: 10px;
}

.enc-peek__body h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 6px;
}

.enc-peek__body p {
  font-size: 13px;
  opacity: 0.82;
  line-height: 1.5;
  margin: 0;
}

/* ── 定价 ── */
.enc-pricing {
  width: 100%;
  max-width: 1080px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.enc-price-card {
  position: relative;
  border: 1px solid var(--enc-gray-200);
  border-radius: var(--enc-radius-lg);
  padding: 32px 28px;
  background: #fff;
  display: flex;
  flex-direction: column;
}

.enc-price-card--popular {
  border-color: var(--enc-accent);
  box-shadow: 0 12px 40px rgba(15, 125, 114, 0.12);
}

.enc-price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--enc-accent);
  color: #fff;
  font-size: 12px;
  padding: 4px 14px;
  border-radius: 999px;
}

.enc-price-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 12px;
}

.enc-price-original {
  font-size: 15px;
  color: var(--enc-gray-400);
  text-decoration: line-through;
}

.enc-price-amount {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.enc-price-period {
  font-size: 13px;
  color: var(--enc-gray-600);
  margin: 0 0 20px;
}

.enc-price-features {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
  flex: 1;
}

.enc-price-features li {
  font-size: 14px;
  color: var(--enc-gray-800);
  padding-left: 22px;
  position: relative;
}

.enc-price-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--enc-accent);
  font-weight: 700;
}

.enc-price-card .enc-btn {
  width: 100%;
}

.enc-pack-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}

.enc-pack-strip span {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--enc-gray-200);
  font-size: 14px;
  color: var(--enc-gray-800);
}

/* ── FAQ ── */
.enc-faq {
  width: 100%;
  max-width: 760px;
  display: grid;
  gap: 12px;
}

.enc-faq__item {
  border: 1px solid var(--enc-gray-200);
  border-radius: 12px;
  padding: 16px 20px;
  background: #fff;
}

.enc-faq__item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
}

.enc-faq__item summary::-webkit-details-marker {
  display: none;
}

.enc-faq__item summary::after {
  content: '+';
  float: right;
  color: var(--enc-gray-400);
  font-weight: 400;
}

.enc-faq__item[open] summary::after {
  content: '−';
}

.enc-faq__item p {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--enc-gray-600);
  line-height: 1.65;
}

.enc-section-more {
  margin-top: 28px;
  text-align: center;
}

.enc-section-more a {
  font-size: 14px;
  font-weight: 600;
  color: var(--enc-accent-deep);
}

.enc-section--dark .enc-section-more a {
  color: #6fe3d4;
}

/* ── 页脚 ── */
.enc-footer {
  background: var(--enc-black);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px clamp(20px, 5vw, 64px) 32px;
}

.enc-footer__inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.enc-footer__brand h3 {
  font-size: 17px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 12px;
}

.enc-footer__brand p {
  font-size: 13px;
  line-height: 1.6;
  margin: 0 0 6px;
  max-width: 40ch;
}

.enc-footer__col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 16px;
}

.enc-footer__col a {
  display: block;
  font-size: 13px;
  padding: 4px 0;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s;
}

.enc-footer__col a:hover {
  color: #fff;
}

.enc-footer__bottom {
  max-width: 1180px;
  margin: 32px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

/* ── 登录 / 注册 ── */
.enc-auth {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--enc-header-h) + 32px) 20px 48px;
  background: var(--enc-gray-100);
}

.enc-auth__card {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border: 1px solid var(--enc-gray-200);
  border-radius: var(--enc-radius-lg);
  padding: 40px 36px;
  box-shadow: 0 20px 60px rgba(11, 13, 16, 0.08);
}

.enc-auth__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.enc-auth__brand .brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--enc-accent);
}

.enc-auth__brand .brand-icon img {
  width: 20px;
  height: 20px;
  filter: brightness(0) invert(1);
}

.enc-auth__brand strong {
  font-size: 17px;
  font-weight: 600;
}

.enc-auth__title {
  font-size: 22px;
  font-weight: 600;
  margin: 18px 0 6px;
}

.enc-auth__subtitle {
  font-size: 14px;
  color: var(--enc-gray-600);
  margin: 0 0 26px;
}

/* 表单控件在白底卡片上的适配 */
.enc-auth .form-label {
  color: var(--enc-gray-800);
}

.enc-auth .form-input {
  background: #fff;
  border: 1px solid var(--enc-gray-200);
  color: var(--enc-ink);
  border-radius: 10px;
}

.enc-auth .form-input:focus {
  border-color: var(--enc-accent);
  box-shadow: 0 0 0 3px rgba(30, 184, 168, 0.15);
}

.enc-auth .auth-tabs {
  display: flex;
  gap: 6px;
  background: var(--enc-gray-100);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 22px;
}

.enc-auth .auth-tab {
  flex: 1;
  text-align: center;
  padding: 9px 0;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 500;
  color: var(--enc-gray-600);
  background: transparent;
}

.enc-auth .auth-tab.active {
  background: #fff;
  color: var(--enc-ink);
  box-shadow: 0 2px 8px rgba(11, 13, 16, 0.06);
}

.enc-auth .btn-primary {
  background: var(--enc-accent);
  color: #fff;
  border: none;
  border-radius: 22px;
  padding: 12px;
  font-size: 15px;
  font-weight: 500;
}

.enc-auth .btn-primary:hover {
  background: var(--enc-accent-deep);
}

/* ── 营销子页 ── */
.enc-subpage {
  padding: calc(var(--enc-header-h) + 56px) clamp(20px, 5vw, 48px) 40px;
  max-width: 960px;
  margin: 0 auto;
  min-height: 60vh;
}

.enc-subpage__head {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--enc-gray-200);
}

.enc-subpage__head h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}

.enc-subpage__head p {
  font-size: 16px;
  color: var(--enc-gray-600);
  margin: 12px 0 0;
  line-height: 1.6;
}

.enc-cta-bar {
  margin-top: 48px;
  padding: 40px;
  border-radius: var(--enc-radius-lg);
  background: linear-gradient(150deg, #0f7d72, #16323f);
  color: #fff;
  text-align: center;
}

.enc-cta-bar h2 {
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 10px;
}

.enc-cta-bar p {
  font-size: 15px;
  opacity: 0.85;
  margin: 0 0 22px;
}

.enc-cta-bar__actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── 响应式 ── */
@media (max-width: 960px) {
  .enc-grid {
    grid-template-columns: repeat(2, 1fr);
    height: auto;
  }
  .enc-grid__cell {
    aspect-ratio: 4 / 3;
  }
  .enc-footer__inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  :root {
    --enc-header-h: 52px;
  }
  .enc-header-links {
    display: none;
  }
  .enc-section {
    min-height: auto;
    padding: calc(var(--enc-header-h) + 40px) 20px 48px;
    scroll-snap-align: none;
  }
  .enc-home {
    scroll-snap-type: none;
  }
  .enc-grid {
    grid-template-columns: 1fr;
  }
  .enc-strip__slide {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .enc-dual,
  .enc-peek,
  .enc-pricing {
    grid-template-columns: 1fr;
  }
  .enc-footer__inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .enc-hero__scenes {
    position: static;
    margin-top: 32px;
  }
  .enc-hero {
    min-height: auto;
    padding-bottom: 48px;
  }
}