/* ============================================================================
   远程绿幕 · 首页（深色科技风产品站）
   ----------------------------------------------------------------------------
   作用域：body.lp-body（只影响首页与 /login，不污染后台工作台的浅色 VI）。
   设计基调：深夜蓝底 #05070d + 主色 #2563eb + 青色渐变点缀 + 玻璃拟态卡片。
   动效克制：只做滚动淡入 / 悬浮位移 / 跑马灯，尊重 prefers-reduced-motion。
   ========================================================================== */

/* ------------------------------ 基底变量 ------------------------------ */
.lp-body {
  --lp-bg: #05070d;
  --lp-bg-2: #0a101e;
  --lp-panel: rgba(255, 255, 255, 0.04);
  --lp-panel-line: rgba(255, 255, 255, 0.09);
  --lp-text: #e8edf7;
  --lp-muted: #93a0b8;
  --lp-blue: #2563eb;
  --lp-blue-2: #3b82f6;
  --lp-cyan: #22d3ee;
  --lp-green: #34d399;
  --lp-grad: linear-gradient(92deg, #4f8bff 0%, #22d3ee 100%);
  --lp-radius: 16px;
  color-scheme: dark;
  background: var(--lp-bg);
  color: var(--lp-text);
  /* 装饰性光晕（.lp-orb-b 等）在窄屏会撑出横向滚动条 → 整页可左右拖。
     首页的 orb 被 .lp-hero{overflow:hidden} 包住，login 页没有，这里统一兜住
     （2026-10-12 手机端审计 C/M1）。 */
  overflow-x: hidden;
}

.lp-body .lp {
  max-width: var(--tk-container);
  margin: 0 auto;
  padding: 0 24px;
}
.lp-body .lp-in {
  max-width: var(--tk-container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ------------------------------ 顶部导航 ------------------------------ */
.lp-body .lp-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  height: calc(64px + var(--sat));
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 32px;
  /* 背景铺到刘海下，内容推回安全区（首页/登录/帮助三页共用这条导航） */
  padding-top: var(--sat);
  padding-left: calc(32px + var(--sal));
  padding-right: calc(32px + var(--sar));
  background: rgba(5, 7, 13, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.lp-body .lp-nav .brand-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--lp-text);
  letter-spacing: 0.5px;
}
.lp-body .lp-nav .brand-logo { max-height: 30px; }
.lp-body .topbar-divider,
.lp-body .lp-nav .topbar-title { display: none; }

.lp-nav-links {
  display: flex;
  gap: 26px;
}
.lp-nav-links a {
  font-size: 14px;
  color: var(--lp-muted);
  text-decoration: none;
  transition: color 0.18s;
}
.lp-nav-links a:hover { color: var(--lp-text); }

.lp-nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.lp-nav-login {
  font-size: 14px;
  color: var(--lp-text);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--tk-r-sm);
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: border-color 0.18s, background 0.18s;
}
.lp-nav-login:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.06);
}
.lp-nav-reg {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  padding: 9px 18px;
  border-radius: var(--tk-r-sm);
  background: var(--lp-grad);
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.45);
  transition: transform 0.18s, box-shadow 0.18s;
}
.lp-nav-reg:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(34, 211, 238, 0.4);
}

/* ------------------------------ Hero ------------------------------ */
.lp-hero {
  position: relative;
  overflow: hidden;
  padding: 150px 0 0;
}
.lp-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.lp-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
}
.lp-orb-a {
  width: 560px; height: 560px;
  left: -160px; top: -140px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.55), transparent 70%);
}
.lp-orb-b {
  width: 640px; height: 640px;
  right: -180px; top: 40px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.28), transparent 70%);
}
.lp-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 75%);
}

.lp-hero-in {
  position: relative;
  max-width: var(--tk-container);
  margin: 0 auto;
  padding: 0 24px 84px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.lp-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #9fc0ff;
  padding: 7px 14px;
  border-radius: var(--tk-r-pill);
  border: 1px solid rgba(79, 139, 255, 0.35);
  background: rgba(37, 99, 235, 0.14);
}
.lp-eyebrow i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--lp-cyan);
  box-shadow: 0 0 8px var(--lp-cyan);
}

.lp-h1 {
  margin: 22px 0 20px;
  font-size: clamp(32px, 4.4vw, 50px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: 1px;
}
.lp-grad {
  background: var(--lp-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lp-lead {
  max-width: 540px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--lp-muted);
}
.lp-lead strong { color: var(--lp-text); }

.lp-actions {
  display: flex;
  gap: 14px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.lp-btn-lg {
  min-width: 172px;
  height: var(--tk-btn-h-lg);
  font-size: 16px;
  border-radius: var(--tk-r-md);
}
.lp-body .lp-btn-lg.btn-primary {
  background: var(--lp-grad);
  border: none;
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.5);
}
.lp-body .lp-btn-lg.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(34, 211, 238, 0.45);
}
.lp-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--lp-text);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  transition: border-color 0.18s, background 0.18s;
}
.lp-btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.06);
}

.lp-trust {
  display: flex;
  gap: 22px;
  margin-top: 26px;
  padding: 0;
  list-style: none;
  flex-wrap: wrap;
}
.lp-trust li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--lp-muted);
}
.lp-trust svg {
  width: 15px; height: 15px;
  color: var(--lp-green);
}

/* ---- Hero 右侧产品画面 ---- */
.lp-hero-visual {
  position: relative;
}
.lp-wall {
  border-radius: var(--tk-r-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(160deg, #0d1526 0%, #0a0f1c 60%);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(37, 99, 235, 0.12),
    0 0 60px rgba(37, 99, 235, 0.18);
  padding: 16px;
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
}
.lp-wall-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.lp-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 700;
  color: #fda4af;
}
.lp-live i {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #f43f5e;
  box-shadow: 0 0 10px #f43f5e;
  animation: lp-blink 1.6s infinite;
}
@keyframes lp-blink { 50% { opacity: 0.35; } }
.lp-wall-name { font-size: 12px; color: var(--lp-muted); }

.lp-wall-hd {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--tk-r-md);
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 78% at 50% 62%, #123524 0%, #0b2418 45%, #071510 100%);
  display: flex;
  align-items: flex-end;
  padding: 12px 14px;
  gap: 10px;
}
.lp-wall-fig {
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: 34%;
  aspect-ratio: 1 / 2.1;
  border-radius: 46% 46% 0 0;
  background: linear-gradient(180deg, #1c4a33 0%, #143626 100%);
}
.lp-wall-tag {
  position: relative;
  font-size: 11px;
  font-weight: 600;
  color: #a7f3d0;
  padding: 5px 10px;
  border-radius: var(--tk-r-sm);
  background: rgba(6, 26, 17, 0.75);
  border: 1px solid rgba(52, 211, 153, 0.3);
}
.lp-wall-res {
  position: relative;
  margin-left: auto;
  font-size: 11px;
  color: #7da190;
  font-variant-numeric: tabular-nums;
}
.lp-wall-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 12px;
}
.lp-thumb {
  aspect-ratio: 16 / 9;
  border-radius: var(--tk-r-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #0d1322;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: #5b6b8c;
}
.lp-thumb.is-on {
  border-color: rgba(79, 139, 255, 0.5);
  color: #9fc0ff;
  background: rgba(37, 99, 235, 0.12);
}

.lp-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--lp-text);
  padding: 9px 14px;
  border-radius: var(--tk-r-md);
  background: rgba(13, 21, 38, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.lp-chip i {
  display: inline-flex;
  width: 20px; height: 20px;
  align-items: center;
  justify-content: center;
  border-radius: var(--tk-r-xs);
  background: rgba(37, 99, 235, 0.25);
  color: #9fc0ff;
}
.lp-chip i svg { width: 13px; height: 13px; }
.lp-chip b { color: var(--lp-cyan); }
.lp-chip-a { left: -26px; top: 38%; animation: lp-float 5s ease-in-out infinite; }
.lp-chip-b { right: -18px; bottom: 8%; animation: lp-float 6s 0.8s ease-in-out infinite; }
@keyframes lp-float { 50% { transform: translateY(-8px); } }

/* ---- 关键词跑马灯 ---- */
.lp-ticker {
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.015);
  overflow: hidden;
  padding: 13px 0;
}
.lp-ticker-track {
  display: flex;
  align-items: center;
  gap: 18px;
  width: max-content;
  animation: lp-marquee 36s linear infinite;
}
.lp-ticker-track span {
  font-size: 13px;
  color: #67779a;
  white-space: nowrap;
  letter-spacing: 1px;
}
.lp-ticker-track b {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: rgba(79, 139, 255, 0.5);
}
@keyframes lp-marquee { to { transform: translateX(-50%); } }

/* ------------------------------ 数据带 ------------------------------ */
.lp-stats-band {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.05), transparent);
}
.lp-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 44px;
  padding-bottom: 44px;
}
.lp-stat b {
  display: block;
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 900;
  background: var(--lp-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.lp-stat span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--lp-muted);
}

/* ------------------------------ 分区通用 ------------------------------ */
.lp-sec { padding: 92px 0 20px; }
.lp-sec-alt {
  margin-top: 72px;
  padding: 80px 0 60px;
  background:
    radial-gradient(ellipse 70% 60% at 50% 0%, rgba(37, 99, 235, 0.07), transparent 70%),
    var(--lp-bg-2);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.lp-sec-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.lp-eyebrow-sm {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  color: #6d9bff;
  text-transform: uppercase;
}
.lp-h2 {
  margin: 14px 0 14px;
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: 1px;
}
.lp-sub { font-size: 15px; line-height: 1.9; color: var(--lp-muted); }

/* ------------------------------ 能力卡片 ------------------------------ */
/* ⚠️ 类名必须是 lp-cards：lp-grid 已被 Hero 背景网格占用（position:absolute; inset:0），
   曾经因为共用类名导致整片卡片绝对定位铺满全屏、盖住 Hero 按钮（点击失效） */
.lp-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.lp-card {
  position: relative;
  padding: 28px 26px 24px;
  border-radius: var(--lp-radius);
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel);
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  overflow: hidden;
}
.lp-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(420px 160px at 20% 0%, rgba(37, 99, 235, 0.14), transparent 70%);
  opacity: 0;
  transition: opacity 0.25s;
}
.lp-card:hover {
  transform: translateY(-4px);
  border-color: rgba(79, 139, 255, 0.45);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.45);
}
.lp-card:hover::before { opacity: 1; }
.lp-ic {
  position: relative;
  width: 46px; height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--tk-r-md);
  color: #8fb2ff;
  background: rgba(37, 99, 235, 0.16);
  border: 1px solid rgba(79, 139, 255, 0.3);
}
.lp-ic svg { width: 22px; height: 22px; }
.lp-ic-green {
  color: #6ee7b7;
  background: rgba(52, 211, 153, 0.13);
  border-color: rgba(52, 211, 153, 0.3);
}
.lp-card h3 {
  position: relative;
  margin: 18px 0 10px;
  font-size: 17px;
  font-weight: 800;
}
.lp-card p {
  position: relative;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--lp-muted);
  min-height: 76px;
}
.lp-kv {
  position: relative;
  font-size: 12px;
  font-weight: 600;
  color: #6d9bff;
  letter-spacing: 0.5px;
}

/* ------------------------------ 三步流程 ------------------------------ */
.lp-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.lp-step {
  position: relative;
  padding: 30px 26px;
  border-radius: var(--lp-radius);
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel);
}
.lp-step-n {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--tk-r-md);
  font-size: 17px;
  font-weight: 900;
  color: #fff;
  background: var(--lp-grad);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.45);
}
.lp-step h3 { margin: 16px 0 10px; font-size: 17px; font-weight: 800; }
.lp-step p { font-size: 13.5px; line-height: 1.85; color: var(--lp-muted); }
.lp-step-tag {
  display: inline-block;
  margin-top: 16px;
  font-size: 12px;
  font-weight: 600;
  color: #6ee7b7;
  padding: 4px 10px;
  border-radius: var(--tk-r-pill);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

/* ---- 链路架构图 ---- */
.lp-arch {
  margin-top: 56px;
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.lp-arch-node {
  min-width: 128px;
  padding: 16px 18px;
  border-radius: var(--tk-r-md);
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel);
  text-align: center;
}
.lp-arch-node b {
  display: block;
  font-size: 15px;
  font-weight: 800;
}
.lp-arch-node span {
  display: block;
  margin-top: 6px;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--lp-muted);
}
.lp-arch-node.is-hub {
  border-color: rgba(79, 139, 255, 0.5);
  background: rgba(37, 99, 235, 0.12);
  box-shadow: 0 0 30px rgba(37, 99, 235, 0.2);
}
.lp-arch-node.is-end {
  border-color: rgba(52, 211, 153, 0.4);
  background: rgba(52, 211, 153, 0.08);
}
.lp-arch-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 86px;
  padding: 0 8px;
}
.lp-arch-link span {
  font-size: 11px;
  font-weight: 600;
  color: #6d9bff;
  white-space: nowrap;
}
.lp-arch-link i {
  width: 100%;
  height: 2px;
  margin-top: 6px;
  background: linear-gradient(90deg, rgba(79, 139, 255, 0.1), rgba(79, 139, 255, 0.7), rgba(79, 139, 255, 0.1));
  position: relative;
}
.lp-arch-link i::after {
  content: '';
  position: absolute;
  right: 0; top: -3px;
  border: 4px solid transparent;
  border-left-color: rgba(79, 139, 255, 0.7);
}
.lp-arch-note {
  margin-top: 22px;
  text-align: center;
  font-size: 13px;
  color: var(--lp-muted);
}
.lp-arch-note b { color: #6ee7b7; }

/* ------------------------------ 身份体系 ------------------------------ */
.lp-roles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  max-width: 880px;
  margin: 0 auto;
}
.lp-role {
  padding: 30px 28px;
  border-radius: var(--lp-radius);
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel);
  transition: transform 0.25s, border-color 0.25s;
}
.lp-role:hover { transform: translateY(-4px); border-color: rgba(79, 139, 255, 0.45); }
.lp-role.is-hot {
  border-color: rgba(79, 139, 255, 0.5);
  background:
    radial-gradient(400px 180px at 80% 0%, rgba(34, 211, 238, 0.12), transparent 70%),
    var(--lp-panel);
  box-shadow: 0 0 40px rgba(37, 99, 235, 0.15);
}
.lp-role-head {
  display: flex;
  align-items: center;
  gap: 14px;
}
.lp-role-ic {
  width: 46px; height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--tk-r-md);
  color: #9fc0ff;
  background: rgba(37, 99, 235, 0.16);
  border: 1px solid rgba(79, 139, 255, 0.3);
}
.lp-role-ic svg { width: 22px; height: 22px; }
.lp-role-head h3 { font-size: 18px; font-weight: 800; }
.lp-role-head span { font-size: 12.5px; color: var(--lp-muted); }
.lp-role > p {
  margin: 16px 0 14px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--lp-muted);
}
.lp-role ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.lp-role li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #c0cbdf;
  padding: 5px 0;
}
.lp-role li::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--lp-cyan);
  flex: none;
}

.lp-jobs {
  max-width: 880px;
  margin: 26px auto 0;
  padding: 24px 28px;
  border-radius: var(--lp-radius);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.02);
  text-align: center;
}
.lp-jobs-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #6d9bff;
}
.lp-jobs-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 14px 0 12px;
  flex-wrap: wrap;
}
.lp-job {
  font-size: 13px;
  font-weight: 600;
  color: var(--lp-text);
  padding: 8px 16px;
  border-radius: var(--tk-r-pill);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}
.lp-jobs p { font-size: 12.5px; color: var(--lp-muted); }

/* ------------------------------ 应用场景 ------------------------------ */
.lp-scenes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.lp-scene {
  border-radius: var(--lp-radius);
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel);
  overflow: hidden;
  transition: transform 0.25s, border-color 0.25s;
}
.lp-scene:hover { transform: translateY(-4px); border-color: rgba(79, 139, 255, 0.45); }
.lp-scene-cover {
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
}
.lp-scene-cover i {
  position: absolute;
  inset: 0;
  opacity: 0.85;
}
.lp-sc-c1 i { background: linear-gradient(135deg, #0ea5e9 0%, #2563eb 60%, #1e1b4b 100%); }
.lp-sc-c2 i { background: linear-gradient(135deg, #6366f1 0%, #7c3aed 55%, #1e1b4b 100%); }
.lp-sc-c3 i { background: linear-gradient(135deg, #10b981 0%, #0d9488 55%, #064e3b 100%); }
.lp-sc-c4 i { background: linear-gradient(135deg, #f43f5e 0%, #a21caf 55%, #312e81 100%); }
.lp-scene-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(5, 7, 13, 0.9) 100%);
}
.lp-scene h3 {
  margin: 16px 18px 8px;
  font-size: 16px;
  font-weight: 800;
}
.lp-scene p {
  margin: 0 18px 20px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--lp-muted);
}

/* ------------------------------ FAQ ------------------------------ */
.lp-faq-wrap {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 48px;
  align-items: start;
}
.lp-faq-head { text-align: left; margin: 0; }
.lp-faq { display: grid; gap: 12px; }
.lp-faq-item {
  border: 1px solid var(--lp-panel-line);
  border-radius: var(--tk-r-md);
  background: var(--lp-panel);
  overflow: hidden;
}
.lp-faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 17px 20px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  -webkit-user-select: none;
  user-select: none;
}
.lp-faq-item summary::-webkit-details-marker { display: none; }
.lp-faq-item summary i {
  flex: none;
  width: 18px; height: 18px;
  position: relative;
}
.lp-faq-item summary i::before,
.lp-faq-item summary i::after {
  content: '';
  position: absolute;
  background: #6d9bff;
  transition: transform 0.2s;
}
.lp-faq-item summary i::before {
  left: 3px; right: 3px; top: 8px; height: 2px;
}
.lp-faq-item summary i::after {
  top: 3px; bottom: 3px; left: 8px; width: 2px;
}
.lp-faq-item[open] summary i::after { transform: scaleY(0); }
.lp-faq-item > p {
  margin: 0;
  padding: 0 20px 18px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--lp-muted);
}
.lp-faq-link {
  color: #6d9bff;
  font-weight: 700;
  text-decoration: none;
}
.lp-faq-link:hover { text-decoration: underline; }

/* ------------------------------ 服务方案 ------------------------------ */
.lp-plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}
.lp-plan {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 34px 30px 28px;
  border-radius: var(--tk-r-lg);
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel);
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.lp-plan:hover {
  transform: translateY(-4px);
  border-color: rgba(79, 139, 255, 0.45);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.45);
}
.lp-plan.is-hot {
  border-color: rgba(79, 139, 255, 0.55);
  background:
    radial-gradient(420px 200px at 80% 0%, rgba(34, 211, 238, 0.14), transparent 70%),
    var(--lp-panel);
  box-shadow: 0 0 46px rgba(37, 99, 235, 0.18);
}
.lp-plan-badge {
  position: absolute;
  top: -12px; left: 26px;
  font-size: 11.5px;
  font-weight: 700;
  color: #9fc0ff;
  padding: 4px 12px;
  border-radius: var(--tk-r-pill);
  background: #0d1526;
  border: 1px solid rgba(79, 139, 255, 0.4);
}
.lp-plan-badge-hot {
  color: #062033;
  background: var(--lp-grad);
  border-color: transparent;
  font-weight: 800;
}
.lp-plan h3 { margin: 8px 0 8px; font-size: 21px; font-weight: 900; }
.lp-plan-desc { font-size: 13px; line-height: 1.8; color: var(--lp-muted); min-height: 46px; }
.lp-plan ul {
  margin: 18px 0 22px;
  padding: 0;
  list-style: none;
  flex: 1;
}
.lp-plan li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: #c0cbdf;
  padding: 6px 0;
}
.lp-plan li::before {
  content: '';
  flex: none;
  width: 14px; height: 14px;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2334d399' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / contain no-repeat;
}
.lp-plan-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  border-radius: var(--tk-r-md);
  font-size: 14.5px;
  font-weight: 700;
}
.lp-plan-btn-hot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  border-radius: var(--tk-r-md);
  font-size: 14.5px;
  font-weight: 800;
  color: #fff !important;
  text-decoration: none;
  background: var(--lp-grad) !important;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.45);
  transition: transform 0.18s, box-shadow 0.18s;
}
.lp-plan-btn-hot:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(34, 211, 238, 0.4); }
.lp-plans-note {
  margin-top: 26px;
  text-align: center;
  font-size: 12.5px;
  line-height: 1.9;
  color: #5f6f8f;
}

/* ------------------------------ 适配平台 ------------------------------ */
.lp-plats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  max-width: 980px;
  margin: 0 auto;
}
.lp-plat {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  padding: 14px 10px;
  border-radius: var(--tk-r-md);
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel);
  font-size: 14.5px;
  font-weight: 700;
  color: #aebbd6;
  letter-spacing: 1px;
  text-align: center;
  transition: color 0.2s, border-color 0.2s, transform 0.2s, background 0.2s;
}
.lp-plat:hover {
  color: #fff;
  border-color: rgba(79, 139, 255, 0.5);
  background: rgba(37, 99, 235, 0.12);
  transform: translateY(-3px);
}
.lp-plats-note {
  margin-top: 26px;
  text-align: center;
  font-size: 12.5px;
  line-height: 1.9;
  color: #5f6f8f;
}

/* ------------------------------ 资讯与帮助 ------------------------------ */
.lp-news {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.lp-news-item {
  display: flex;
  flex-direction: column;
  padding: 26px 24px 22px;
  border-radius: var(--lp-radius);
  border: 1px solid var(--lp-panel-line);
  background: var(--lp-panel);
  transition: transform 0.25s, border-color 0.25s;
}
.lp-news-item:hover { transform: translateY(-4px); border-color: rgba(79, 139, 255, 0.45); }
.lp-news-cat {
  align-self: flex-start;
  font-size: 11.5px;
  font-weight: 700;
  color: #6ee7b7;
  padding: 4px 10px;
  border-radius: var(--tk-r-pill);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.25);
}
.lp-news-item h3 { margin: 14px 0 8px; font-size: 15.5px; font-weight: 800; }
.lp-news-item p {
  flex: 1;
  font-size: 13px;
  line-height: 1.8;
  color: var(--lp-muted);
}
.lp-news-item a {
  margin-top: 14px;
  font-size: 13px;
  font-weight: 700;
  color: #6d9bff;
  text-decoration: none;
}
.lp-news-item a:hover { text-decoration: underline; }
.lp-news-more { margin-top: 30px; text-align: center; }

/* ------------------------------ CTA ------------------------------ */
.lp-cta {
  position: relative;
  margin: 40px 0 72px;
  padding: 46px 48px;
  border-radius: var(--tk-r-lg);
  border: 1px solid rgba(79, 139, 255, 0.35);
  background: linear-gradient(120deg, rgba(37, 99, 235, 0.22), rgba(34, 211, 238, 0.1));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  overflow: hidden;
}
.lp-cta-glow {
  position: absolute;
  width: 420px; height: 420px;
  right: -80px; top: -220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.25), transparent 70%);
  pointer-events: none;
}
.lp-cta h2 { margin: 0 0 10px; font-size: 26px; font-weight: 900; }
.lp-cta p { margin: 0; max-width: 560px; font-size: 14px; line-height: 1.9; color: #a9b7d0; }
.lp-cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; }
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  height: 50px;
  padding: 0 28px;
  border: none;
  border-radius: var(--tk-r-md);
  font-size: 15px;
  font-weight: 800;
  color: #fff !important;
  text-decoration: none;
  background: var(--lp-grad) !important;
  box-shadow: 0 8px 26px rgba(37, 99, 235, 0.5);
  transition: transform 0.18s, box-shadow 0.18s;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(34, 211, 238, 0.45); }
.btn-cta-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
  height: 50px;
  padding: 0 24px;
  border-radius: var(--tk-r-md);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--lp-text) !important;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}
.btn-cta-ghost:hover { border-color: rgba(255, 255, 255, 0.5); background: rgba(255, 255, 255, 0.06); }

/* ------------------------------ 页脚 ------------------------------ */
.lp-foot {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: #04060b;
  padding: 52px 0 40px;
  margin-top: 20px;
}
.lp-foot .lp-foot {
  border: none;
  background: none;
  padding: 0;
  margin: 0;
}
.lp-body footer .lp-foot {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.lp-foot-brand { max-width: 420px; }
.lp-foot-brand b { font-size: 17px; font-weight: 900; }
.lp-foot-brand span {
  display: block;
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.9;
  color: #5f6f8f;
}
.lp-foot-links { display: flex; gap: 64px; }
.lp-foot-col b {
  display: block;
  font-size: 13px;
  color: var(--lp-text);
  margin-bottom: 14px;
}
.lp-foot-col a {
  display: block;
  font-size: 13px;
  color: #5f6f8f;
  text-decoration: none;
  padding: 4px 0;
  transition: color 0.18s;
}
.lp-foot-col a:hover { color: #9fc0ff; }

/* ------------------------------ 滚动淡入 ------------------------------ */
.lp-reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.lp-anim .lp-reveal.is-in {
  opacity: 1;
  transform: none;
}
/* JS 挂了也能看：未启用动画引擎时全部直接可见 */
html:not(.lp-anim) .lp-reveal { opacity: 1; transform: none; }

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width: 1024px) {
  /* ⚠️ 必须是 minmax(0, 1fr)：写成 1fr 时网格轨道的下限是内容的 min-content，
     而 .lp-hero-visual 下的 .lp-wall 有 560px 的固有宽度 → 轨道被撑到 560px，
     再叠加 .lp-hero{overflow:hidden} 就成了「Hero 右半被静默裁掉且滑不出来」
     （2026-10-12 手机端审计 C1，CDP 实测 computed 560px / 容器 342px）。 */
  .lp-hero-in { grid-template-columns: minmax(0, 1fr); gap: 44px; }
  .lp-hero-copy, .lp-hero-visual { min-width: 0; }
  .lp-wall { max-width: 100%; }
  .lp-hero-visual { max-width: 560px; }
  .lp-cards { grid-template-columns: repeat(2, 1fr); }
  .lp-scenes { grid-template-columns: repeat(2, 1fr); }
  .lp-plans { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .lp-plats { grid-template-columns: repeat(3, 1fr); }
  .lp-news { grid-template-columns: repeat(2, 1fr); }
  .lp-faq-wrap { grid-template-columns: 1fr; gap: 32px; }
  .lp-arch { gap: 10px; }
  .lp-nav-links { display: none; }
}
@media (max-width: 640px) {
  /* ⚠️ 110px 是「固定导航 64px + 46px 间距」。导航高度会随 --sat 变高，
     不加 inset 的话：iPhone 14 Pro Max（inset 59px）算下来只剩 -13px，
     主标题会钻到导航底下。 */
  .lp-hero { padding-top: calc(110px + var(--sat)); }
  /* 顶栏在 390px 下三个按钮把主 CTA 挤成一竖列还贴边被裁；
     .lp-nav 是 fixed，溢出不产生滚动条 → 只能主动收窄（手机端审计 C2）。 */
  .lp-body .lp-nav { padding: 0 14px; gap: 10px;
    padding-top: var(--sat); padding-left: calc(14px + var(--sal)); padding-right: calc(14px + var(--sar)); }
  .lp-nav-actions { gap: 8px; }
  .lp-nav-actions a { white-space: nowrap; }
  .lp-nav-login { font-size: 13px; padding: 7px 11px; }
  .lp-nav-reg { font-size: 13px; padding: 8px 13px; }
  .lp-nav-hide-sm { display: none !important; }
  /* 登录页的装饰光晕原本挂到视口外（.lp-orb-b right:-180px → 390 视口实测 scrollWidth=570；
     收掉它之后左锚的 .lp-orb-a（宽 560）右边缘 560 又顶上来）。两个一起收进视口：
     右边缘必须 ≤ 视口宽，否则绝对定位元素会给页面造成横向滚动。
     模糊光斑本来就是虚的，缩到 420px 视觉上几乎无差别。 */
  .lg-body .lp-orb-a { left: -160px; width: 420px; height: 420px; }
  .lg-body .lp-orb-b { right: 0; width: 420px; height: 420px; }
  .lp-cards, .lp-scenes, .lp-flow, .lp-roles { grid-template-columns: 1fr; }
  .lp-stats { grid-template-columns: repeat(2, 1fr); }
  .lp-plats { grid-template-columns: repeat(2, 1fr); }
  .lp-news { grid-template-columns: 1fr; }
  .lp-cta { flex-direction: column; align-items: flex-start; padding: 32px 26px; }
  .lp-chip-a { left: 6px; }
  .lp-chip-b { right: 6px; }
  .lp-wall { transform: none; }
  .lp-arch { flex-direction: column; align-items: center; }
  .lp-arch-link { min-width: 0; flex-direction: row; gap: 10px; width: 200px; }
  .lp-arch-link i { width: auto; flex: 1; height: 2px; margin-top: 0; background: linear-gradient(90deg, rgba(79,139,255,0.1), rgba(79,139,255,0.7)); }
  .lp-arch-link i::after { right: auto; left: auto; }
}

/* ------------------------------ 动效克制 ------------------------------ */
@media (prefers-reduced-motion: reduce) {
  .lp-ticker-track { animation: none; }
  .lp-chip-a, .lp-chip-b { animation: none; }
  .lp-live i { animation: none; }
  .lp-reveal { transition: none; opacity: 1; transform: none; }
}