/**
 * premium.css — 「Aurora Glass」高端化增强层
 *
 * 依赖：tokens.css / base.css / components.css / front.css / home-v2.css / auth-v2.css / admin.css
 * 原则：
 *   1) 全部颜色/阴影/圆角走 var(--lh-*) 变量，暗色模式自动适配
 *   2) 只做视觉与微交互增强，不破坏既有组件类
 *   3) 尊重 prefers-reduced-motion
 */

/* ============================================================
   1. 全局氛围：噪点颗粒 + 极光底层
   ============================================================ */
html::after{
  content:'';position:fixed;inset:0;z-index:1;pointer-events:none;
  opacity:.5;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.05'/%3E%3C/svg%3E");
}
[data-theme="dark"] html::after{opacity:.7}

/* ============================================================
   2. 排版精修
   ============================================================ */
h1,h2,h3{letter-spacing:-.02em}
.front-section__title{
  font-size:clamp(1.625rem,3vw,2.25rem);
  font-weight:800;letter-spacing:-.03em;text-align:center;
  background:linear-gradient(180deg,var(--lh-text) 30%,var(--lh-text-soft) 130%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.front-section__title::after{
  content:'';display:block;width:56px;height:4px;margin:.875rem auto 0;
  border-radius:var(--lh-r-full);
  background:var(--lh-gradient-primary);
  box-shadow:0 2px 10px var(--lh-primary-soft);
}
.front-section__desc{text-align:center;max-width:38rem;margin:.625rem auto 0;font-size:.9375rem}
.dash-page-header h1,.admin-page-head h1{letter-spacing:-.02em}

/* ============================================================
   3. 滚动进度条
   ============================================================ */
.premium-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:calc(var(--lh-z-header,100) + 10);
  background:var(--lh-gradient-primary);
  border-radius:0 var(--lh-r-full) var(--lh-r-full) 0;
  box-shadow:0 0 12px rgba(255,63,159,.55);
  transition:width .08s linear;pointer-events:none;
}

/* ============================================================
   4. Header 高端化
   ============================================================ */
.lh-header{border-bottom-color:transparent;transition:border-color var(--lh-dur) var(--lh-ease),box-shadow var(--lh-dur) var(--lh-ease)}
.lh-header.is-scrolled{
  border-bottom-color:var(--lh-border);
  box-shadow:0 8px 32px rgba(15,23,42,.08);
}
.lh-header__logo .lh-logo-icon{transition:transform var(--lh-dur) var(--lh-ease-spring)}
.lh-header__logo:hover .lh-logo-icon{transform:rotate(-6deg) scale(1.06)}
.lh-header__title{background:linear-gradient(120deg,var(--lh-text) 20%,var(--lh-text-soft) 120%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* 导航：滑入下划线 */
.lh-nav-link{position:relative;overflow:hidden}
.lh-nav-link::after{
  content:'';position:absolute;left:50%;bottom:2px;width:0;height:2px;
  border-radius:var(--lh-r-full);background:var(--lh-gradient-primary);
  transform:translateX(-50%);transition:width var(--lh-dur) var(--lh-ease-out);
}
.lh-nav-link:hover::after,.lh-nav-link--active::after{width:60%}

/* VIP CTA：鎏金渐变 + 流光 */
.lh-btn--vip{
  position:relative;overflow:hidden;
  background:var(--lh-gradient-warm);
  border:1px solid rgba(255,255,255,.25);
  box-shadow:0 4px 16px rgba(217,154,43,.35),inset 0 1px 0 rgba(255,255,255,.35);
}
.lh-btn--vip::before{
  content:'';position:absolute;top:0;left:-80%;width:50%;height:100%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-20deg);animation:lh-btn-shine 3.2s var(--lh-ease) infinite;
}
@keyframes lh-btn-shine{0%{left:-80%}55%{left:130%}100%{left:130%}}

/* ============================================================
   5. 按钮光泽扫过（通用，::before 空闲）
   ============================================================ */
.lh-btn{isolation:isolate}
.lh-btn::before{
  content:'';position:absolute;top:0;left:0;width:100%;height:100%;
  background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,.22) 50%,transparent 65%);
  transform:translateX(-120%) skewX(-15deg);
  transition:transform .6s var(--lh-ease-out);z-index:0;
}
.lh-btn:hover::before{transform:translateX(120%) skewX(-15deg)}
.lh-btn--ghost::before,.lh-btn--outline::before{background:linear-gradient(105deg,transparent 35%,rgba(255,63,159,.14) 50%,transparent 65%)}
.lh-btn>*{position:relative;z-index:1}

/* ============================================================
   6. 玻璃卡片高级化：悬停高光描边 + 浮起
   ============================================================ */
.home-v2-feature-card,.home-v2-price-card,.front-testimonials__card,.home-v2-lookup{
  position:relative;transition:transform var(--lh-dur) var(--lh-ease-out),box-shadow var(--lh-dur) var(--lh-ease-out),border-color var(--lh-dur) var(--lh-ease);
}
.home-v2-feature-card::after,.home-v2-price-card::after,.front-testimonials__card::after{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  padding:1px;background:linear-gradient(135deg,rgba(255,63,159,.45),rgba(255,159,67,.25) 40%,transparent 60%);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity var(--lh-dur) var(--lh-ease);
}
.home-v2-feature-card:hover::after,.home-v2-price-card:hover::after,.front-testimonials__card:hover::after{opacity:1}
.home-v2-feature-card:hover{transform:translateY(-6px);box-shadow:var(--lh-sh-3)}
.home-v2-price-card:hover{transform:translateY(-8px);box-shadow:var(--lh-sh-3),var(--lh-sh-glow)}
.home-v2-price-card--featured{
  border-color:transparent;
  box-shadow:0 0 0 1.5px rgba(255,63,159,.35),var(--lh-sh-2),var(--lh-sh-glow);
}
.home-v2-price-card--featured::before{
  content:'';position:absolute;inset:-1.5px;border-radius:inherit;z-index:-1;
  background:conic-gradient(from var(--lh-border-angle,0deg),#ff3f9f,#ff9f43,#ff7a45,#ff3f9f);
  animation:lh-border-rotate 6s linear infinite;opacity:.9;
}
@property --lh-border-angle{syntax:'<angle>';initial-value:0deg;inherits:false}
@keyframes lh-border-rotate{to{--lh-border-angle:360deg}}

/* 推荐徽章流光 */
.home-v2-price-card__badge,.front-price-card__badge{
  background:var(--lh-gradient-primary);color:#fff;
  box-shadow:0 4px 14px rgba(255,63,159,.4);letter-spacing:.05em;
}

/* ============================================================
   7. Hero 极光增强
   ============================================================ */
.home-v2-hero{position:relative;overflow:hidden}
.home-v2-hero::before{
  content:'';position:absolute;top:-40%;left:50%;width:120%;height:90%;
  transform:translateX(-50%);
  background:conic-gradient(from 180deg at 50% 0%,transparent 0deg,rgba(255,63,159,.14) 70deg,rgba(255,159,67,.16) 130deg,transparent 200deg,rgba(255,63,159,.10) 280deg,transparent 360deg);
  filter:blur(40px);pointer-events:none;
  animation:lh-aurora 14s ease-in-out infinite alternate;
}
.home-v2-hero::after{
  content:'';position:absolute;inset:auto 0 0 0;height:38%;
  background:linear-gradient(180deg,transparent,var(--lh-bg));
  pointer-events:none;
}
@keyframes lh-aurora{
  0%{transform:translateX(-50%) rotate(-2deg) scale(1)}
  100%{transform:translateX(-46%) rotate(3deg) scale(1.08)}
}
.home-v2-hero__title{letter-spacing:-.035em;line-height:1.12}
.home-v2-hero__title-gradient{
  background:var(--lh-gradient-text);background-size:200% auto;
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:lh-gradient-flow 6s linear infinite;
}
@keyframes lh-gradient-flow{to{background-position:200% center}}
.home-v2-hero__eyebrow{
  border:1px solid rgba(255,63,159,.28);
  box-shadow:0 4px 18px rgba(255,63,159,.15);
  letter-spacing:.08em;text-transform:uppercase;font-weight:600;
}
.home-v2-hero__eyebrow::before{
  content:'';display:inline-block;width:7px;height:7px;margin-right:.5rem;
  border-radius:var(--lh-r-full);background:var(--lh-primary);
  box-shadow:0 0 0 0 rgba(255,63,159,.5);animation:lh-pulse-dot 2.2s ease-out infinite;
}
@keyframes lh-pulse-dot{
  0%{box-shadow:0 0 0 0 rgba(255,63,159,.5)}
  70%{box-shadow:0 0 0 9px rgba(255,63,159,0)}
  100%{box-shadow:0 0 0 0 rgba(255,63,159,0)}
}
.home-v2-hero__cta-primary{
  background:var(--lh-gradient-primary);border:none;
  box-shadow:0 8px 24px rgba(255,63,159,.35);
}
.home-v2-hero__cta-primary:hover{box-shadow:0 12px 32px rgba(255,63,159,.5);transform:translateY(-2px)}
.home-v2-hero__cta-ghost{
  border:1px solid var(--lh-border-strong);background:var(--lh-surface);
  backdrop-filter:var(--lh-glass-blur);-webkit-backdrop-filter:var(--lh-glass-blur);
}

/* ============================================================
   8. FAQ 手风琴（Aurora 风格）
   ============================================================ */
.premium-faq{max-width:52rem;margin:0 auto}
.premium-faq__item{
  margin-bottom:var(--lh-sp-3);border-radius:var(--lh-r-md);
  border:1px solid var(--lh-border);background:var(--lh-surface);
  backdrop-filter:var(--lh-glass-blur);-webkit-backdrop-filter:var(--lh-glass-blur);
  box-shadow:var(--lh-sh-1);overflow:hidden;
  transition:border-color var(--lh-dur) var(--lh-ease),box-shadow var(--lh-dur) var(--lh-ease);
}
.premium-faq__item.is-open{border-color:rgba(255,63,159,.35);box-shadow:var(--lh-sh-2)}
.premium-faq__q{
  display:flex;align-items:center;justify-content:space-between;gap:var(--lh-sp-4);
  width:100%;padding:1.125rem 1.375rem;text-align:left;cursor:pointer;
  font-size:.9375rem;font-weight:var(--lh-fw-semibold);color:var(--lh-text);
  transition:color var(--lh-dur) var(--lh-ease);
}
.premium-faq__q:hover{color:var(--lh-primary)}
.premium-faq__chevron{
  flex-shrink:0;display:grid;place-items:center;width:28px;height:28px;
  border-radius:var(--lh-r-full);background:var(--lh-primary-soft);color:var(--lh-primary);
  transition:transform var(--lh-dur) var(--lh-ease-spring),background var(--lh-dur) var(--lh-ease);
}
.premium-faq__item.is-open .premium-faq__chevron{transform:rotate(180deg);background:var(--lh-primary);color:var(--lh-text-inv)}
.premium-faq__a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows var(--lh-dur) var(--lh-ease-out);
}
.premium-faq__item.is-open .premium-faq__a{grid-template-rows:1fr}
.premium-faq__a-inner{overflow:hidden}
.premium-faq__a-inner p{
  margin:0;padding:0 1.375rem 1.25rem;font-size:.875rem;
  color:var(--lh-text-soft);line-height:1.8;
}

/* ============================================================
   9. 保障条（定价页/信任背书）
   ============================================================ */
.premium-trust{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--lh-sp-4);
  margin:0 0 var(--lh-sp-7);
}
.premium-trust__item{
  display:flex;align-items:center;gap:var(--lh-sp-3);
  padding:var(--lh-sp-4) var(--lh-sp-5);border-radius:var(--lh-r-md);
  border:1px solid var(--lh-border);background:var(--lh-surface);
  backdrop-filter:var(--lh-glass-blur);-webkit-backdrop-filter:var(--lh-glass-blur);
  box-shadow:var(--lh-sh-1);transition:transform var(--lh-dur) var(--lh-ease-out),box-shadow var(--lh-dur) var(--lh-ease-out);
}
.premium-trust__item:hover{transform:translateY(-4px);box-shadow:var(--lh-sh-2)}
.premium-trust__icon{
  flex-shrink:0;display:grid;place-items:center;width:44px;height:44px;
  border-radius:var(--lh-r-sm);color:#fff;
  background:var(--lh-gradient-primary);
  box-shadow:0 6px 16px rgba(255,63,159,.3);
}
.premium-trust__item:nth-child(2) .premium-trust__icon{background:var(--lh-gradient-warm);box-shadow:0 6px 16px rgba(217,154,43,.3)}
.premium-trust__item:nth-child(3) .premium-trust__icon{background:linear-gradient(135deg,var(--lh-info),var(--lh-success));box-shadow:0 6px 16px rgba(14,165,233,.3)}
.premium-trust__title{font-size:.9375rem;font-weight:var(--lh-fw-semibold);color:var(--lh-text);display:block}
.premium-trust__desc{font-size:.8125rem;color:var(--lh-text-mute);display:block;margin-top:2px}

/* ============================================================
   10. 结账步骤指示条
   ============================================================ */
.premium-steps{
  display:flex;align-items:center;justify-content:center;gap:0;
  max-width:30rem;margin:0 auto var(--lh-sp-6);padding:var(--lh-sp-4) var(--lh-sp-5);
  border-radius:var(--lh-r-full);
  border:1px solid var(--lh-border);background:var(--lh-surface);
  backdrop-filter:var(--lh-glass-blur);-webkit-backdrop-filter:var(--lh-glass-blur);
  box-shadow:var(--lh-sh-1);
}
.premium-steps__item{display:flex;align-items:center;gap:.5rem;flex-shrink:0}
.premium-steps__dot{
  display:grid;place-items:center;width:26px;height:26px;border-radius:var(--lh-r-full);
  font-size:var(--lh-fs-xs);font-weight:var(--lh-fw-bold);
  background:var(--lh-bg-soft);color:var(--lh-text-mute);
  border:1.5px solid var(--lh-border-strong);
  transition:all var(--lh-dur) var(--lh-ease);
}
.premium-steps__label{font-size:var(--lh-fs-sm);color:var(--lh-text-mute);white-space:nowrap;transition:color var(--lh-dur) var(--lh-ease)}
.premium-steps__line{flex:1 1 auto;min-width:24px;height:2px;margin:0 .625rem;background:var(--lh-border-strong);border-radius:var(--lh-r-full);position:relative;overflow:hidden}
.premium-steps__item.is-active .premium-steps__dot{
  background:var(--lh-gradient-primary);color:#fff;border-color:transparent;
  box-shadow:0 4px 12px rgba(255,63,159,.35);
}
.premium-steps__item.is-active .premium-steps__label{color:var(--lh-text);font-weight:var(--lh-fw-semibold)}
.premium-steps__item.is-done .premium-steps__dot{background:var(--lh-success-soft);color:var(--lh-success);border-color:transparent}
.premium-steps__item.is-done .premium-steps__label{color:var(--lh-text-soft)}
.premium-steps__line.is-done{background:var(--lh-success)}
@media(max-width:576px){
  .premium-steps{border-radius:var(--lh-r-md)}
  .premium-steps__label{display:none}
}

/* ============================================================
   11. Footer 品牌化（多列 + 社交圆钮）
   ============================================================ */
.lh-footer--premium{
  margin-top:var(--lh-sp-8);padding:0;
  border-top:none;
  background:
    radial-gradient(ellipse 60% 90% at 8% 0%,rgba(255,63,159,.07),transparent 60%),
    radial-gradient(ellipse 55% 80% at 95% 10%,rgba(255,122,69,.07),transparent 60%),
    var(--lh-bg-soft);
}
[data-theme="dark"] .lh-footer--premium{
  background:
    radial-gradient(ellipse 60% 90% at 8% 0%,rgba(255,107,181,.08),transparent 60%),
    radial-gradient(ellipse 55% 80% at 95% 10%,rgba(255,159,107,.06),transparent 60%),
    #0c111f;
}
.lh-footer--premium::before{
  content:'';display:block;height:3px;width:100%;
  background:var(--lh-gradient);opacity:.85;
}
.lh-footer--premium .lh-footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:var(--lh-sp-6);
  padding:var(--lh-sp-7) 0 var(--lh-sp-6);
}
.lh-footer--premium .lh-footer__brand .lh-header__logo{margin-bottom:var(--lh-sp-3)}
.lh-footer--premium .lh-footer__tagline{
  font-size:.875rem;color:var(--lh-text-soft);line-height:1.8;
  max-width:20rem;margin:0 0 var(--lh-sp-4);
}
.lh-footer__col-title{
  font-size:var(--lh-fs-sm);font-weight:var(--lh-fw-bold);
  color:var(--lh-text);letter-spacing:.06em;margin-bottom:var(--lh-sp-4);
  display:flex;align-items:center;gap:.5rem;
}
.lh-footer__col-title::before{content:'';width:14px;height:2px;border-radius:var(--lh-r-full);background:var(--lh-gradient-primary)}
.lh-footer__col ul{display:flex;flex-direction:column;gap:.625rem}
.lh-footer__col a{
  display:inline-flex;align-items:center;gap:.375rem;
  font-size:.875rem;color:var(--lh-text-soft);text-decoration:none;
  transition:color var(--lh-dur) var(--lh-ease),transform var(--lh-dur) var(--lh-ease);
}
.lh-footer__col a::before{
  content:'';width:0;height:1.5px;border-radius:var(--lh-r-full);
  background:var(--lh-primary);transition:width var(--lh-dur) var(--lh-ease);
}
.lh-footer__col a:hover{color:var(--lh-primary);transform:translateX(2px)}
.lh-footer__col a:hover::before{width:10px}
.lh-footer__social{display:flex;gap:var(--lh-sp-2)}
.lh-footer__social a{
  display:grid;place-items:center;width:38px;height:38px;border-radius:var(--lh-r-sm);
  color:var(--lh-text-soft);background:var(--lh-surface-2);
  border:1px solid var(--lh-border);
  transition:all var(--lh-dur) var(--lh-ease);
}
.lh-footer__social a:hover{
  color:#fff;background:var(--lh-gradient-primary);border-color:transparent;
  transform:translateY(-3px);box-shadow:0 8px 18px rgba(255,63,159,.35);
}
.lh-footer--premium .lh-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--lh-sp-3);
  padding:var(--lh-sp-4) 0;border-top:1px solid var(--lh-border);
  font-size:var(--lh-fs-sm);color:var(--lh-text-mute);
}
.lh-footer--premium .lh-footer__bottom-links{display:flex;gap:var(--lh-sp-4)}
.lh-footer--premium .lh-footer__bottom-links a{color:var(--lh-text-mute);transition:color var(--lh-dur) var(--lh-ease)}
.lh-footer--premium .lh-footer__bottom-links a:hover{color:var(--lh-primary)}
@media(max-width:900px){.lh-footer--premium .lh-footer__grid{grid-template-columns:1fr 1fr}}
@media(max-width:576px){.lh-footer--premium .lh-footer__grid{grid-template-columns:1fr;gap:var(--lh-sp-5)}}

/* ============================================================
   12. 用户控制台：侧边栏用户卡 + 渐变欢迎横幅
   ============================================================ */
.dash-usercard{
  display:flex;align-items:center;gap:var(--lh-sp-3);
  margin-bottom:var(--lh-sp-5);padding:var(--lh-sp-4);
  border-radius:var(--lh-r-md);
  background:linear-gradient(135deg,rgba(255,63,159,.08),rgba(255,122,69,.06));
  border:1px solid rgba(255,63,159,.18);
  position:relative;overflow:hidden;
}
.dash-usercard::before{
  content:'';position:absolute;top:-60%;right:-30%;width:120px;height:120px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,63,159,.18),transparent 70%);
  pointer-events:none;
}
.dash-usercard__avatar{
  flex-shrink:0;display:grid;place-items:center;width:46px;height:46px;
  border-radius:var(--lh-r-full);color:#fff;font-weight:var(--lh-fw-bold);font-size:1.125rem;
  background:var(--lh-gradient-primary);
  box-shadow:0 6px 16px rgba(255,63,159,.35);
}
.dash-usercard__name{
  display:block;font-size:.9375rem;font-weight:var(--lh-fw-semibold);
  color:var(--lh-text);line-height:1.3;
  max-width:10rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.dash-usercard__mail{
  display:block;font-size:var(--lh-fs-xs);color:var(--lh-text-mute);
  max-width:10rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.dash-hero{
  position:relative;overflow:hidden;
  padding:var(--lh-sp-6) !important;border-radius:var(--lh-r-lg);
  background:linear-gradient(120deg,rgba(255,63,159,.10) 0%,rgba(255,159,67,.08) 55%,rgba(255,122,69,.06) 100%);
  border:1px solid rgba(255,63,159,.16) !important;margin-bottom:var(--lh-sp-5);
}
.dash-hero::before{
  content:'';position:absolute;top:-80%;right:-5%;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,63,159,.14),transparent 65%);pointer-events:none;
}
.dash-hero h1{position:relative}
.dash-hero p{position:relative;margin:0}

/* ============================================================
   13. 后台：深色渐变侧边栏 + 顶栏精修
   ============================================================ */
body.lh-admin-body .lh-admin-sidebar{
  background:linear-gradient(180deg,#12172b 0%,#0d1122 55%,#0a0e1c 100%);
  border-right:1px solid rgba(255,255,255,.06);
  box-shadow:8px 0 32px rgba(5,8,18,.35);
}
body.lh-admin-body .lh-admin-sidebar::before{
  content:'';position:absolute;top:-10%;left:-30%;width:70%;height:45%;
  background:radial-gradient(ellipse,rgba(255,63,159,.16),transparent 70%);
  pointer-events:none;
}
body.lh-admin-body .lh-sidebar-logo{border-bottom:1px solid rgba(255,255,255,.07)}
body.lh-admin-body .lh-sidebar-logo__text{
  background:linear-gradient(120deg,#fff 30%,#ffd9ec 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
body.lh-admin-body .lh-sidebar-group__title{
  color:#5b6b8c;font-size:.6875rem;letter-spacing:.14em;text-transform:uppercase;
}
body.lh-admin-body .lh-sidebar-item{color:#9fb0cd;border-radius:var(--lh-r-sm);transition:color var(--lh-dur) var(--lh-ease),background var(--lh-dur) var(--lh-ease)}
body.lh-admin-body .lh-sidebar-item i{opacity:.75}
body.lh-admin-body .lh-sidebar-item:hover{color:#fff;background:rgba(255,255,255,.06)}
body.lh-admin-body .lh-sidebar-item--active{
  color:#fff;
  background:linear-gradient(120deg,rgba(255,63,159,.22),rgba(255,122,69,.10));
  box-shadow:inset 0 0 0 1px rgba(255,63,159,.28);
  position:relative;
}
body.lh-admin-body .lh-sidebar-item--active::before{
  content:'';position:absolute;left:0;top:20%;bottom:20%;width:3px;
  border-radius:var(--lh-r-full);background:var(--lh-gradient-primary);
  box-shadow:0 0 10px rgba(255,63,159,.6);
}
body.lh-admin-body .lh-admin-header{border-bottom:1px solid var(--lh-border)}
body.lh-admin-body .lh-selfcheck-dot{animation:lh-status-breathe 2.4s ease-in-out infinite}
@keyframes lh-status-breathe{0%,100%{box-shadow:0 0 0 0 rgba(22,163,74,.45)}50%{box-shadow:0 0 0 5px rgba(22,163,74,0)}}

/* 侧边栏底部版本卡 */
.admin-sidecard{
  margin:var(--lh-sp-4);padding:var(--lh-sp-4);
  border-radius:var(--lh-r-md);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
.admin-sidecard__row{display:flex;align-items:center;justify-content:space-between;gap:var(--lh-sp-2);margin-bottom:var(--lh-sp-2)}
.admin-sidecard__label{font-size:var(--lh-fs-xs);color:#8195b8}
.admin-sidecard__badge{
  padding:2px 8px;border-radius:var(--lh-r-full);font-size:.6875rem;font-weight:var(--lh-fw-semibold);
  color:#7ef0b2;background:rgba(22,163,74,.16);border:1px solid rgba(22,163,74,.3);
}
.admin-sidecard__link{
  display:flex;align-items:center;justify-content:center;gap:.375rem;
  padding:.5rem;border-radius:var(--lh-r-xs);
  font-size:var(--lh-fs-sm);color:#b9c7e2;text-decoration:none;
  border:1px solid rgba(255,255,255,.10);
  transition:all var(--lh-dur) var(--lh-ease);
}
.admin-sidecard__link:hover{color:#fff;border-color:rgba(255,63,159,.45);background:rgba(255,63,159,.14)}

/* ============================================================
   14. 授权页（auth）品牌面板极光增强
   ============================================================ */
.auth-v2__brand::after{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:
    radial-gradient(ellipse 45% 30% at 15% 8%,rgba(255,63,159,.22),transparent 65%),
    radial-gradient(ellipse 40% 28% at 88% 92%,rgba(255,122,69,.18),transparent 65%);
  animation:lh-aurora-shift 12s ease-in-out infinite alternate;
}
@keyframes lh-aurora-shift{
  0%{transform:translate(0,0);opacity:.45}
  100%{transform:translate(-3%,2%);opacity:.65}
}
.auth-v2__brand-title{letter-spacing:-.02em}
.auth-v2__brand-feature:hover .auth-v2__brand-feature-icon{transform:scale(1.12) rotate(-4deg)}
.auth-v2__brand-feature-icon{transition:transform var(--lh-dur) var(--lh-ease-spring)}

/* ============================================================
   15. 通用 Reveal（滚动进入）+ 磁吸/倾斜辅助
   ============================================================ */
[data-premium-reveal]{
  opacity:0;transform:translateY(26px);
  transition:opacity .7s var(--lh-ease-out),transform .7s var(--lh-ease-out);
  transition-delay:var(--reveal-delay,0ms);
  will-change:opacity,transform;
}
[data-premium-reveal].is-visible{opacity:1;transform:none}
[data-magnetic]{transition:transform .18s var(--lh-ease-out)}
[data-tilt]{transform-style:preserve-3d;will-change:transform}

/* ============================================================
   16. 杂项精修
   ============================================================ */
/* FAQ 区块间距 */
.premium-faq-section{padding:var(--lh-sp-8) 0 var(--lh-sp-7)}
.premium-faq-section .premium-faq{margin-top:var(--lh-sp-6)}
/* 页脚信任列表 */
.lh-footer__trust li{display:flex;align-items:center;gap:.5rem;font-size:.8125rem;color:var(--lh-text-soft)}
.lh-footer__trust li svg{flex-shrink:0}
/* 控制台用户卡文字容器 */
.dash-usercard__meta{flex:1;min-width:0}
/* 后台侧边栏折叠态隐藏版本卡 */
body.lh-admin-body.lh-sidebar-collapsed .admin-sidecard{display:none}
/* 代码块等宽数字 */
.front-stats-bar__num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.dash-stat-card__num,.admin-stat-card__num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}
/* 表格行 hover 品牌色渲染 */
.dash-table tbody tr,.lh-table tbody tr{transition:background var(--lh-dur-fast) var(--lh-ease)}
.dash-table tbody tr:hover,.lh-table tbody tr:hover{background:rgba(255,63,159,.035)}
/* 输入框聚焦品牌光环 */
.lh-input:focus,.lh-textarea:focus,.lh-select:focus{
  border-color:var(--lh-primary);
  box-shadow:0 0 0 4px var(--lh-primary-soft);
}
/* Toast 入场更顺滑 */
.lh-toast{animation:lh-toast-in .45s var(--lh-ease-spring)}
@keyframes lh-toast-in{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}

/* ============================================================
   17. 响应式 & 可访问性
   ============================================================ */
@media(max-width:768px){
  .home-v2-hero::before{width:160%;opacity:.8}
  .lh-footer--premium .lh-footer__grid{padding:var(--lh-sp-6) 0 var(--lh-sp-5)}
}
@media(prefers-reduced-motion:reduce){
  html::after,.lh-btn--vip::before,.home-v2-hero::before,
  .home-v2-hero__title-gradient,.home-v2-price-card--featured::before,
  .auth-v2__brand::after,body.lh-admin-body .lh-selfcheck-dot,
  .lh-btn::before{animation:none !important}
  [data-premium-reveal]{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto !important}
}