/* =========================================================
   CLAY · 高保真 Claymorphism 设计系统 — miao 个人博客
   糖果店调色板 + 4 层阴影 + 超圆角 + 有机微动画
   ========================================================= */

/* ---------- Design Tokens ---------- */
:root{
  --canvas:#F4F1FA;            /* 极浅薰衣草白画布 */
  --foreground:#332F3A;        /* 柔和炭灰主文字 */
  --muted:#635F69;             /* 深薰衣草灰次文字 (不低于此值) */
  --accent:#7C3AED;            /* 鲜艳紫 */
  --accent-soft:#A78BFA;
  --accent-alt:#DB2777;        /* 热粉 */
  --sky:#0EA5E9;               /* 天蓝 */
  --success:#10B981;           /* 翡翠绿 */
  --warn:#F59E0B;              /* 琥珀 */
  --card-bg:rgba(255,255,255,.62);
  --deep:#cdc6d9;
  --soft:#EFEBF5;

  /* 字体 */
  --font-display:'Nunito','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:'DM Sans','PingFang SC','Microsoft YaHei',sans-serif;

  /* 圆角层级 */
  --r-xl:60px;   --r-lg:48px;  --r-md:32px;  --r-sm:24px;  --r-xs:20px;
}

/* ---------- Reset ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--canvas);
  color:var(--foreground);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
main{position:relative;z-index:1}
section{padding:96px 22px;max-width:1200px;margin:0 auto}
a{color:inherit;text-decoration:none}
button{font-family:var(--font-body);cursor:pointer;border:none;background:none;color:inherit}
img{max-width:100%;display:block}

/* ---------- 动画光斑背景 ---------- */
.blob-scene{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.7}
.blob-purple{width:52vw;height:52vw;left:-14vw;top:-12vh;background:rgba(139,92,246,.16)}
.blob-pink{width:46vw;height:46vw;right:-14vw;top:6vh;background:rgba(236,72,153,.14)}
.blob-sky{width:42vw;height:42vw;left:10vw;bottom:-16vh;background:rgba(14,165,233,.13)}
.blob-green{width:34vw;height:34vw;right:4vw;bottom:6vh;background:rgba(16,185,129,.11)}

/* =========================================================
   Clay 阴影系统（每元素 4 层阴影）
   ========================================================= */
.clay-orb,
.clay-btn,
.bento-card,.post-card,.price-card,.note-card,
.faq-item,.how-step,.stat-orb,.social-btn,.hero-badge,.chip,.tag-pill{
  background:var(--card-bg);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:
    16px 16px 32px rgba(160,150,180,.22),    /* 柔和投影 */
    -10px -10px 24px rgba(255,255,255,.92),  /* 左上强高光 */
    inset 6px 6px 12px rgba(139,92,246,.04), /* 内彩色反弹光 */
    inset -6px -6px 12px rgba(255,255,255,1);/* 内边缘光 */
}
.clay-btn-primary{
  background:linear-gradient(135deg,#A78BFA,#7C3AED);
  color:#fff;
  box-shadow:
    12px 12px 24px rgba(139,92,246,.32),
    -8px -8px 16px rgba(255,255,255,.5),
    inset 4px 4px 8px rgba(255,255,255,.35),
    inset -4px -4px 8px rgba(0,0,0,.12);
}
.clay-btn-secondary{
  background:#fff;color:var(--foreground);
  box-shadow:
    12px 12px 24px rgba(160,150,180,.28),
    -8px -8px 16px rgba(255,255,255,.9),
    inset 4px 4px 8px rgba(255,255,255,.7),
    inset -4px -4px 8px rgba(0,0,0,.05);
}

/* =========================================================
   按钮 / 输入框
   ========================================================= */
.clay-btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;letter-spacing:.02em;text-align:center;
  border-radius:var(--r-xs);height:56px;padding:0 28px;
  font-size:1.05rem;line-height:1;
  transition:transform .2s cubic-bezier(.34,1.56,.64,1),box-shadow .2s;
}
.clay-btn:hover{transform:translateY(-4px);box-shadow:0 20px 34px rgba(139,92,246,.35),-8px -8px 16px rgba(255,255,255,.9)}
.clay-btn:active{transform:scale(.92);box-shadow:inset 10px 10px 20px rgba(0,0,0,.18),inset -10px -10px 20px rgba(255,255,255,.6)}
.clay-btn:focus-visible{outline:4px solid rgba(124,58,237,.3);outline-offset:2px}
.clay-btn-sm{height:44px;padding:0 22px;font-size:.98rem;border-radius:20px}
.clay-btn-lg{height:64px;padding:0 36px;font-size:1.12rem}
.clay-btn-block{width:100%}

/* 输入框：内嵌凹陷 */
.clay-input{
  flex:1;min-width:0;height:56px;border:none;border-radius:var(--r-xs);
  background:var(--soft);padding:0 24px;font-size:1.02rem;color:var(--foreground);
  font-family:var(--font-body);
  box-shadow:inset 10px 10px 20px #ddd7e4,inset -10px -10px 20px #fff;
  transition:all .2s;
}
.clay-input::placeholder{color:var(--muted)}
.clay-input:focus{outline:none;background:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.18),12px 12px 24px rgba(160,150,180,.2)}

/* =========================================================
   导航
   ========================================================= */
.nav-wrap{position:fixed;top:18px;left:0;right:0;z-index:100;display:flex;justify-content:center;padding:0 20px}
.nav{
  width:min(1080px,100%);display:flex;align-items:center;gap:14px;
  padding:10px 14px 10px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.6);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:12px 12px 30px rgba(160,150,180,.25),-8px -8px 18px rgba(255,255,255,.9),
             inset 4px 4px 10px rgba(255,255,255,.7),inset -4px -4px 10px rgba(0,0,0,.03);
}
.nav-brand{display:flex;align-items:center;gap:10px}
.brand-orb{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  font-weight:900;color:#fff;font-size:1.3rem;font-family:var(--font-display);
  background:linear-gradient(135deg,#A78BFA,#7C3AED);
  box-shadow:4px 6px 12px rgba(124,58,237,.4),inset 2px 2px 6px rgba(255,255,255,.5);
}
.brand-name{font-size:1.4rem;font-weight:900;color:var(--foreground);letter-spacing:-.02em}
.brand-dot{color:var(--accent)}
.nav-links{list-style:none;display:flex;gap:4px;margin:0 auto}
.nav-links a{display:block;padding:10px 16px;border-radius:16px;font-weight:500;color:var(--foreground);transition:all .2s}
.nav-links a:hover{background:rgba(124,58,237,.1);color:var(--accent);transform:translateY(-2px)}
.nav-cta{margin-left:auto}
.nav-toggle{display:none}

/* ---- 液态玻璃导航（LiquidGlass 覆盖） ---- */
.nav{ /* 导航容器套液态玻璃质感 */
  background: rgba(255,255,255,.14);
  border: 1px double rgba(255,255,255,.45);
  backdrop-filter: blur(18px) saturate(170%);
  -webkit-backdrop-filter: blur(18px) saturate(170%);
  box-shadow:
    inset 1.5px -1.5px 1px -1px rgba(255,255,255,.9),
    inset -1.5px 1.5px 1px -1px rgba(255,255,255,.8),
    inset 0 0 3px rgba(15,23,42,.18),
    0 16px 32px rgba(15,23,42,.12);
}
.nav-links a{ /* 内联元素不套 pill，由子项 li 承载 */
  display:block;padding:8px 10px;font-weight:700;color:var(--foreground);
  transition:all .2s;
}
.nav-links li .liquid{
  --liquid-padding:.55rem .9rem;
  --liquid-radius:18px;
  --liquid-bg: rgba(255,255,255,.10);
  --liquid-border: rgba(51,51,51,.06);
  --liquid-blur:6px;
  min-width:0;min-height:0;
  background: rgba(255,255,255,.12);
  border: 1px double rgba(255,255,255,.35);
  border-radius:18px;
  backdrop-filter: blur(10px) saturate(150%);
  -webkit-backdrop-filter: blur(10px) saturate(150%);
  box-shadow:
    inset 1px -1px 1px rgba(255,255,255,.85),
    inset -1px 1px 1px rgba(255,255,255,.7),
    0 6px 14px rgba(15,23,42,.10);
  transition: transform .2s, background .2s, box-shadow .2s;
}
.nav-links li .liquid:hover{ transform:translateY(-2px); background:rgba(255,255,255,.24); }
.nav-links a:hover{color:var(--accent);background:transparent}

/* =========================================================
   Hero
   ========================================================= */
.hero{position:relative;padding-top:180px;padding-bottom:120px;text-align:center}
.hero-inner{position:relative;max-width:900px;margin:0 auto;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;padding:10px 22px;border-radius:60px;
  font-size:.95rem;font-weight:600;color:var(--muted);margin-bottom:30px;
}
.pulse-dot{width:10px;height:10px;border-radius:50%;background:var(--success);position:relative}
.pulse-dot::after{content:'';position:absolute;inset:-6px;border-radius:50%;background:rgba(16,185,129,.4);animation:pulse 2s infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:.8}70%{transform:scale(1.4);opacity:0}100%{opacity:0}}

.hero-title{
  font-size:clamp(2.7rem,7vw,5.4rem);line-height:1.12;font-weight:900;
  letter-spacing:-.02em;margin-bottom:28px;
}
.clay-text-gradient{
  background:linear-gradient(90deg,#332F3A 15%,#7C3AED 45%,#DB2777 70%,#0EA5E9 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.grad-accent{color:inherit}
.hero-sub{max-width:620px;margin:0 auto 40px;font-size:1.18rem;color:var(--muted);font-weight:500}
.hero-actions{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.hero-trust{list-style:none;display:flex;gap:28px;justify-content:center;flex-wrap:wrap;margin-top:44px}
.hero-trust li{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.95rem;font-weight:600}
.check-orb{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#34D399,#10B981);color:#fff;display:grid;place-items:center;font-size:.8rem;box-shadow:3px 4px 8px rgba(16,185,129,.35)}

/* Hero 漂浮形状 */
.hero-shapes{position:absolute;inset:0;z-index:-1;pointer-events:none}
.float-shape{position:absolute;border-radius:50%;opacity:.5}
.fs-1{width:70px;height:70px;left:6%;top:24%;background:linear-gradient(135deg,#C4B5FD,#8B5CF6)}
.fs-2{width:46px;height:46px;right:12%;top:30%;border-radius:22px;background:linear-gradient(135deg,#F9A8D4,#EC4899)}
.fs-3{width:60px;height:60px;left:14%;bottom:16%;border-radius:30px;background:linear-gradient(135deg,#7DD3FC,#0EA5E9)}
.fs-4{width:40px;height:40px;right:8%;bottom:28%;border-radius:50%;background:linear-gradient(135deg,#6EE7B7,#10B981)}
.fs-5{width:30px;height:30px;left:46%;top:8%;border-radius:50%;background:linear-gradient(135deg,#FCD34D,#F59E0B)}

/* =========================================================
   Stats 呼吸球
   ========================================================= */
.stats{padding-top:40px;padding-bottom:40px}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;max-width:960px;margin:0 auto}
.stat-orb{
  aspect-ratio:1;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:radial-gradient(circle at 32% 28%,rgba(255,255,255,.95),color-mix(in srgb,var(--c,#8B5CF6) 18%,#fff));
  transition:transform .3s;
}
.stat-orb:hover{transform:scale(1.08)}
.stat-num{font-size:clamp(2.4rem,7vw,3.6rem);font-weight:900;color:var(--c,#8B5CF6);line-height:1}
.stat-label{font-size:1.02rem;color:var(--muted);font-weight:600;margin-top:8px}

/* =========================================================
   通用 Section 头部
   ========================================================= */
.sec-head{text-align:center;margin-bottom:56px}
.eyebrow{display:inline-block;color:var(--accent);font-weight:800;letter-spacing:.16em;font-size:.8rem;text-transform:uppercase;margin-bottom:12px;font-family:var(--font-display)}
.sec-title{font-size:clamp(1.9rem,4.5vw,3rem);font-weight:900;line-height:1.2;letter-spacing:-.01em;margin-bottom:16px}
.sec-sub{max-width:560px;margin:0 auto;color:var(--muted);font-size:1.1rem}
.card-eyebrow{color:var(--accent-alt);font-weight:800;letter-spacing:.14em;font-size:.72rem;text-transform:uppercase;margin-bottom:8px;font-family:var(--font-display)}

/* =========================================================
   Columns / Bento
   ========================================================= */
.bento{display:grid;gap:24px;grid-template-columns:1fr}
.bento-card{
  position:relative;overflow:hidden;border-radius:var(--r-md);padding:28px;
  transition:transform .5s,box-shadow .5s;
}
.bento-card:hover{transform:translateY(-8px)}
.bento-inner{position:relative;z-index:2;display:flex;flex-direction:column;height:100%}
.card-title{font-size:1.5rem;font-weight:800;line-height:1.25;margin-bottom:10px}
.bento-hero .card-title{font-size:clamp(1.5rem,3vw,2.1rem)}
.card-text{color:var(--muted);font-weight:500;margin-bottom:18px;flex:1}
.chip{display:inline-block;align-self:flex-start;padding:6px 16px;border-radius:60px;font-size:.85rem;font-weight:700;color:var(--muted)}
.feat-ic{width:58px;height:58px;border-radius:20px;display:grid;place-items:center;color:#fff;margin-bottom:18px;box-shadow:0 8px 16px rgba(0,0,0,.12),inset 2px 2px 6px rgba(255,255,255,.4)}
.feat-ic svg{width:28px;height:28px;fill:none}
.ic-purple{background:linear-gradient(135deg,#A78BFA,#7C3AED)}
.ic-pink{background:linear-gradient(135deg,#F472B6,#DB2777)}
.ic-sky{background:linear-gradient(135deg,#38BDF8,#0EA5E9)}
.ic-green{background:linear-gradient(135deg,#34D399,#10B981)}
.ic-amber{background:linear-gradient(135deg,#FBBF24,#F59E0B)}
.peek-panel{position:absolute;bottom:-26px;left:0;right:0;height:80px;border-radius:0 0 var(--r-md) var(--r-md);opacity:0;background:linear-gradient(135deg,rgba(167,139,250,.25),rgba(124,58,237,.35));transform:translateY(40px);transition:all .5s}
.bento-hero:hover .peek-panel{transform:translateY(0);opacity:1}
.bento-hero{min-height:320px;background:rgba(255,255,255,.75)}
@media(min-width:720px){
  .bento{grid-template-columns:1fr 1fr;grid-auto-rows:minmax(200px,auto)}
  .bento-hero{grid-column:span 2;min-height:280px}
}

/* =========================================================
   About 50-50
   ========================================================= */
.about-grid{display:grid;gap:56px;align-items:center}
.about-visual{position:relative;display:grid;place-items:center}
.clay-stack{position:relative;width:min(380px,90%);aspect-ratio:1}
.stack-shape{position:absolute;border-radius:50%}
.ss-1{width:120px;height:120px;top:2%;left:0;background:linear-gradient(135deg,#C4B5FD,#8B5CF6);opacity:.8}
.ss-2{width:90px;height:90px;bottom:8%;right:2%;border-radius:38px;background:linear-gradient(135deg,#F9A8D4,#EC4899);opacity:.8}
.ss-3{width:150px;height:60px;bottom:2%;left:10%;border-radius:60px;background:linear-gradient(135deg,#7DD3FC,#0EA5E9);opacity:.7}
.avatar-clay{
  position:absolute;inset:18%;border-radius:50%;
  background:linear-gradient(160deg,#ffffff,#dcd3ec);
  box-shadow:20px 24px 44px rgba(160,150,180,.35),-14px -14px 28px #fff,
             inset 10px 10px 24px rgba(255,255,255,.9),inset -10px -10px 20px rgba(124,58,246,.08);
  display:grid;place-items:center;
}
.avatar-face{font-size:clamp(2.4rem,6vw,4rem);line-height:1}
.benefit-list{list-style:none;display:grid;gap:16px;margin:34px 0}
.benefit-row{
  display:flex;gap:18px;align-items:flex-start;padding:18px;border-radius:var(--r-sm);
  background:var(--card-bg);backdrop-filter:blur(16px);transition:all .3s;
  box-shadow:10px 12px 24px rgba(160,150,180,.2),-8px -8px 16px rgba(255,255,255,.9);
}
.benefit-row:hover{transform:translateY(-4px)}
.benefit-ic{flex:none;width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,#34D399,#10B981);display:grid;place-items:center;color:#fff;box-shadow:3px 4px 8px rgba(16,185,129,.3)}
.benefit-ic svg{width:22px;height:22px}
.benefit-title{font-size:1.2rem;font-weight:800;margin-bottom:2px}
.benefit-row p{color:var(--muted);font-size:.98rem}

/* =========================================================
   How it works
   ========================================================= */
.how-grid{display:grid;gap:30px;position:relative}
.how-step{text-align:center;padding:40px 28px;border-radius:var(--r-md);position:relative;transition:transform .3s}
.how-step:hover{transform:translateY(-6px)}
.how-num{
  width:clamp(96px,16vw,112px);height:clamp(96px,16vw,112px);margin:0 auto 22px;border-radius:50%;
  display:grid;place-items:center;font-size:2.3rem;font-weight:900;color:#fff;
  background:linear-gradient(135deg,#A78BFA,#7C3AED);
  box-shadow:0 14px 24px rgba(124,58,237,.35),inset 3px 3px 8px rgba(255,255,255,.4);
  transition:transform .3s;
}
.how-step:hover .how-num{transform:scale(1.1)}
.how-pipe{display:none}
@media(min-width:860px){
  .how-grid{grid-template-columns:1fr auto 1fr auto 1fr;align-items:start}
  .how-pipe{display:block;width:60px;height:26px;margin-top:52px;border-radius:60px;background:var(--soft);
    box-shadow:inset 4px 4px 8px #ddd7e4,inset -4px -4px 8px #fff;position:relative}
  .how-pipe::after{content:'';position:absolute;top:50%;right:8px;width:8px;height:8px;border-radius:50%;background:var(--accent);transform:translateY(-50%)}
}

/* =========================================================
   Blog 拍立得
   ========================================================= */
.blog{padding-top:60px}
.blog-grid{display:grid;gap:28px}
.post-card{
  overflow:hidden;border-radius:var(--r-md);padding:14px 14px 26px;transition:transform .45s,box-shadow .45s;
}
.post-card:hover{transform:translateY(-12px);box-shadow:0 30px 44px rgba(160,150,180,.3),-10px -10px 24px #fff}
.post-media{
  height:210px;border-radius:var(--r-sm);display:grid;place-items:center;overflow:hidden;margin-bottom:18px;
  box-shadow:inset 0 0 30px rgba(0,0,0,.08);
}
.post-glyph{font-size:4rem;color:rgba(255,255,255,.9);text-shadow:0 4px 10px rgba(0,0,0,.2)}
.post-body{padding:0 14px}
.post-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tag-pill{padding:4px 14px;border-radius:60px;background:rgba(124,58,237,.12);color:var(--accent);font-weight:800;font-size:.78rem;letter-spacing:.05em}
.post-date{color:var(--muted);font-size:.86rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.post-title{font-size:1.45rem;font-weight:800;line-height:1.3;margin-bottom:8px}
.post-card .card-text{font-size:.98rem;margin-bottom:16px}
.post-more{color:var(--accent);font-weight:800;font-size:1rem;display:inline-flex;align-items:center;gap:6px;transition:gap .2s,transform .2s}
.post-more:hover{gap:12px;transform:translateY(-2px)}
.bento-card .post-more{margin-top:auto;padding-top:16px}
.blog-cta{text-align:center;margin-top:52px}
@media(min-width:820px){.blog-grid{grid-template-columns:repeat(3,1fr)}}

/* =========================================================
   Support / Pricing  (已移除 SUPPORT 区块，保留样式无害)
   ========================================================= */
.price-grid{display:grid;gap:28px;align-items:start}
.price-card{
  position:relative;border-radius:var(--r-md);padding:36px 30px;text-align:center;
  display:flex;flex-direction:column;transition:transform .4s,box-shadow .4s;
}
.price-card:hover{transform:translateY(-8px)}
.price-name{font-size:1.35rem;font-weight:800;margin-bottom:14px}
.price-amt{font-size:3.2rem;font-weight:900;color:var(--accent);font-family:var(--font-display);margin-bottom:22px}
.price-amt span{font-size:1rem;color:var(--muted);font-weight:600}
.price-list{list-style:none;text-align:left;display:grid;gap:14px;margin-bottom:30px;flex:1}
.price-list li{display:flex;align-items:center;gap:12px;color:var(--foreground);font-weight:600;font-size:1.02rem}
.check-ic{flex:none;width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,#34D399,#10B981);color:#fff;display:grid;place-items:center;font-size:.9rem;font-weight:900}
.hot-badge{
  position:absolute;top:-16px;left:50%;transform:translateX(-50%);
  padding:8px 22px;border-radius:60px;font-size:.85rem;font-weight:800;color:#fff;white-space:nowrap;
  background:linear-gradient(135deg,#F472B6,#DB2777);box-shadow:0 10px 18px rgba(219,39,119,.4);
}
@media(min-width:860px){
  .price-grid{grid-template-columns:repeat(3,1fr)}
  .price-hot{transform:scale(1.06);z-index:2}
  .price-hot:hover{transform:translateY(-8px) scale(1.06)}
}

/* =========================================================
   Notes / Testimonials
   ========================================================= */
.notes-grid{display:grid;gap:28px}
.note-card{border-radius:var(--r-md);padding:34px 30px;transition:transform .4s,box-shadow .4s}
.note-card:hover{transform:translateY(-8px)}
.note-stars{color:var(--warn);font-size:1.25rem;letter-spacing:.15em;margin-bottom:18px}
.note-text{font-size:1.1rem;font-weight:500;color:var(--foreground);font-style:italic;margin-bottom:24px}
.note-who{display:flex;align-items:center;gap:14px}
.note-avatar{width:52px;height:52px;border-radius:50%;flex:none;position:relative;
  box-shadow:6px 8px 16px rgba(160,150,180,.35),-4px -4px 8px rgba(255,255,255,.9),inset 0 0 0 4px rgba(255,255,255,.8)}
.av1{background:linear-gradient(135deg,#C4B5FD,#8B5CF6)}
.av2{background:linear-gradient(135deg,#F9A8D4,#EC4899)}
.av3{background:linear-gradient(135deg,#7DD3FC,#0EA5E9)}
.note-who div{display:flex;flex-direction:column;line-height:1.35}
.note-who strong{font-size:1.05rem;font-weight:800}
.note-who span{color:var(--muted);font-size:.86rem}
@media(min-width:820px){.notes-grid{grid-template-columns:repeat(3,1fr)}}

/* =========================================================
   FAQ
   ========================================================= */
.faq{padding-top:40px}
.faq-wrap{max-width:760px;margin:0 auto;text-align:center}
.faq-wrap .sec-title{margin-bottom:40px}
.faq-list{text-align:left;display:grid;gap:16px}
.faq-item{border-radius:var(--r-sm);overflow:hidden;padding:0;transition:box-shadow .3s}
.faq-item[open]{box-shadow:inset 8px 8px 16px #ddd7e4,inset -8px -8px 16px #fff,12px 12px 24px rgba(160,150,180,.15)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px;font-weight:800;font-size:1.08rem}
.faq-item summary::-webkit-details-marker{display:none}
.faq-q{font-weight:800}
.faq-chev{transition:transform .3s;color:var(--accent);font-size:1.1rem;flex:none}
.faq-item[open] .faq-chev{transform:rotate(180deg)}
.faq-a{padding:0 26px 24px;color:var(--muted);font-weight:500;line-height:1.8}
.faq-item[open] summary{box-shadow:inset 0 -2px 0 rgba(124,58,237,.08)}

/* =========================================================
   Footer
   ========================================================= */
.footer{
  position:relative;z-index:1;margin-top:40px;padding:70px 22px 30px;border-radius:var(--r-lg) var(--r-lg) 0 0;
  background:rgba(255,255,255,.5);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);
  box-shadow:0 -20px 60px rgba(160,150,180,.15),inset 0 2px 0 rgba(255,255,255,.8);
}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;gap:40px;grid-template-columns:1fr}
.footer-brand .footer-desc{color:var(--muted);font-size:.98rem;margin:16px 0 22px;max-width:280px}
.socials{display:flex;gap:12px}
.social-btn{
  width:46px;height:46px;border-radius:16px;font-weight:800;color:var(--foreground);
  background:var(--card-bg);display:grid;place-items:center;font-size:.85rem;transition:all .25s;
  box-shadow:8px 8px 16px rgba(160,150,180,.25),-5px -5px 10px rgba(255,255,255,.9);
}
.social-btn:hover{transform:translateY(-4px);color:var(--accent)}
.foot-title{font-size:1.1rem;font-weight:800;margin-bottom:18px}
.footer-col ul{list-style:none;display:grid;gap:12px}
.foot-link{color:var(--muted);font-size:.98rem;font-weight:600;transition:color .2s,transform .2s;text-align:left}
.foot-link:hover{color:var(--accent);transform:translateX(4px)}
.foot-note{color:var(--muted);font-size:.92rem;margin-bottom:14px}
.sub-form{display:flex;gap:10px;max-width:340px}
.footer-bottom{max-width:1200px;margin:60px auto 0;padding-top:26px;border-top:2px dashed rgba(124,58,237,.15);display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;font-weight:500}
.icp a{color:var(--muted);font-weight:700;transition:color .2s}
.icp a:hover{color:var(--accent)}
@media(min-width:760px){.footer-grid{grid-template-columns:1.6fr 1fr 1.4fr}}
@media(max-width:640px){.footer-bottom{flex-direction:column;text-align:center}}

/* =========================================================
   Modal 施工弹窗
   ========================================================= */
.modal{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(51,47,58,.35);backdrop-filter:blur(4px);animation:fadeIn .25s}
.modal-card{
  position:relative;max-width:440px;width:100%;text-align:center;padding:52px 40px 40px;border-radius:var(--r-md);
  background:rgba(255,255,255,.92);backdrop-filter:blur(24px);
  box-shadow:24px 24px 60px rgba(160,150,180,.4),-12px -12px 28px rgba(255,255,255,.9),
             inset 6px 6px 14px rgba(255,255,255,.9),inset -6px -6px 14px rgba(0,0,0,.04);
  animation:pop .45s cubic-bezier(.34,1.56,.64,1);
}
.modal-orb{width:86px;height:86px;margin:0 auto 22px;border-radius:50%;background:var(--soft);display:grid;place-items:center;font-size:2.6rem;box-shadow:inset 8px 8px 16px #ddd7e4,inset -8px -8px 16px #fff}
.modal-title{font-size:1.7rem;font-weight:900;margin-bottom:14px}
.modal-text{color:var(--muted);font-size:1.05rem;line-height:1.8;margin-bottom:30px}
.modal-close{position:absolute;top:16px;right:20px;width:40px;height:40px;border-radius:50%;font-size:1.5rem;color:var(--muted);background:var(--soft);line-height:1;box-shadow:4px 4px 8px rgba(160,150,180,.2)}
.modal-close:hover{color:var(--accent-alt)}
@keyframes pop{from{transform:scale(.7) translateY(20px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* =========================================================
   Clay 动画系统
   ========================================================= */
@keyframes clay-float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-20px) rotate(2deg)}}
@keyframes clay-float-delayed{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-15px) rotate(-2deg)}}
@keyframes clay-float-slow{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-30px) rotate(5deg)}}
@keyframes clay-breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.04)}}
@keyframes clay-blob{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(30px,-40px) scale(1.08)}66%{transform:translate(-20px,20px) scale(.95)}}

.clay-float{animation:clay-float 8s ease-in-out infinite}
.clay-float-delayed{animation:clay-float-delayed 10s ease-in-out infinite}
.clay-float-slow{animation:clay-float-slow 12s ease-in-out infinite}
.clay-breathe{animation:clay-breathe 6s ease-in-out infinite}
.clay-blob{animation:clay-blob 14s ease-in-out infinite}
.clay-blob-alt{animation:clay-blob 18s ease-in-out infinite reverse}
.anim-delay-1000{animation-delay:1s}
.anim-delay-2000{animation-delay:2s}
.anim-delay-3000{animation-delay:3s}
.anim-delay-4000{animation-delay:4s}
.anim-delay-4500{animation-delay:4.5s}
.anim-delay-1500{animation-delay:1.5s}

/* =========================================================
   移动端导航
   ========================================================= */
@media(max-width:860px){
  .nav-links{
    position:fixed;top:80px;left:20px;right:20px;flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(255,255,255,.95);backdrop-filter:blur(20px);border-radius:var(--r-sm);padding:14px;
    box-shadow:16px 16px 40px rgba(160,150,180,.3),-8px -8px 16px rgba(255,255,255,.9);
    transform:translateY(-14px);opacity:0;pointer-events:none;transition:all .25s;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-cta{display:none}
  .nav-toggle{display:flex;flex-direction:column;gap:5px;margin-left:auto;width:46px;height:46px;align-items:center;justify-content:center;border-radius:16px;background:var(--soft);box-shadow:inset 3px 3px 6px #ddd7e4,inset -3px -3px 6px #fff}
  .nav-toggle span{width:22px;height:3px;border-radius:3px;background:var(--foreground);transition:all .3s}
  .nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .nav{margin:0}
}
@media(min-width:600px){.stats-grid{grid-template-columns:repeat(4,1fr)}}

/* =========================================================
   Reduced motion
   ========================================================= */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important;scroll-behavior:auto!important}
}

/* =========================================================
   互动与 UI 增强 (Interactive / UI polish)
   ========================================================= */
/* ---- 滚动显现 ----
   页面元素默认透明上移，进入视口后 .reveal-in 显现 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1);will-change:opacity,transform}
.reveal.reveal-in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---- Hero 入场动画 ---- */
.hero-inner > *{animation:fadeUp .8s cubic-bezier(.22,.61,.36,1) both}
.hero-inner > *:nth-child(1){animation-delay:.05s}
.hero-inner > *:nth-child(2){animation-delay:.15s}
.hero-inner > *:nth-child(3){animation-delay:.25s}
.hero-inner > *:nth-child(4){animation-delay:.35s}
.hero-inner > *:nth-child(5){animation-delay:.45s}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}

/* ---- 卡片悬浮微交互动效（视差亮度跟随指针） ---- */
.card-glow{position:relative;overflow:hidden}
.card-glow::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .35s;
  background:radial-gradient(360px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.5),transparent 45%)}
.card-glow:hover::before{opacity:1}

/* ---- 按钮光晕涟漪（点击） ---- */
.ripple-btn{position:relative;overflow:hidden}
.ripple-btn .ripple{position:absolute;border-radius:50%;transform:scale(0);animation:rip .6s ease-out;background:rgba(255,255,255,.6);pointer-events:none}
@keyframes rip{to{transform:scale(4);opacity:0}}

/* ---- 返回顶部 ---- */
.to-top{position:fixed;right:22px;bottom:24px;z-index:200;width:52px;height:52px;border-radius:50%;cursor:pointer;
  display:grid;place-items:center;color:var(--fg);opacity:0;pointer-events:none;transform:translateY(10px);transition:all .3s;
  background:rgba(255,255,255,.7);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:10px 12px 22px rgba(160,150,180,.35),-6px -6px 12px rgba(255,255,255,.9),inset 2px 2px 6px rgba(255,255,255,.8)}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{transform:translateY(-4px);color:var(--accent)}
@media(max-width:640px){.to-top{right:14px;bottom:18px;width:46px;height:46px}}

/* ---- 阅读进度条 ---- */
.read-progress{position:fixed;top:0;left:0;height:4px;width:0;z-index:300;background:linear-gradient(90deg,#A78BFA,#DB2777,#0EA5E9);border-radius:0 4px 4px 0}

/* ---- 图片/卡片图标轻微动态（hover 摇晃动画） ---- */
@keyframes wiggle{0%,100%{transform:rotate(0)}25%{transform:rotate(-6deg)}75%{transform:rotate(6deg)}}
.feat-ic:hover svg,.check-ic:hover{animation:wiggle .4s ease}

/* ---- 文字下划线魔法(hover) ---- */
.magic-link{position:relative;display:inline-block}
.magic-link::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;border-radius:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .3s}
.magic-link:hover::after{transform:scaleX(1)}

/* ---- 数字滚动(统计) 由 JS 更新,仅样式占位 ---- */

/* ---- 文章封面图 & 来源标注 ---- */
.post-media{position:relative;overflow:hidden}
.post-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.post-media .post-glyph{position:relative}
.post-src{display:inline-block;margin-top:4px;font-size:.8rem;color:var(--muted);font-weight:600}
.post-src:hover{color:var(--accent)}
.article-banner{overflow:hidden}
.article-banner img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.article-banner{position:relative}
.article-banner>span{position:relative}
.source-line{margin-top:14px;padding-top:14px;border-top:2px dashed rgba(124,58,237,.15);font-size:.92rem;color:var(--muted);display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.source-line a{color:var(--accent);font-weight:700;word-break:break-all}

/* =========================================================
   主题切换按钮
   ========================================================= */
.theme-toggle{
  width:44px;height:44px;flex:none;cursor:pointer;display:flex;align-items:center;justify-content:center;
  border-radius:16px;padding:0;
  color:var(--foreground);background:#fff;border:1px solid rgba(124,58,237,.2);
  backdrop-filter:blur(10px) saturate(150%);-webkit-backdrop-filter:blur(10px) saturate(150%);
  box-shadow:6px 8px 14px rgba(160,150,180,.3),-4px -4px 8px rgba(255,255,255,.9),inset 1px 1px 3px rgba(255,255,255,.8);
  transition:transform .3s,background .3s,color .3s;
}
.theme-toggle:hover{transform:translateY(-2px) rotate(12deg)}
.theme-toggle svg{width:20px;height:20px;display:block}
.icon-sun{color:#B45309}
.icon-moon{color:#7C3AED;display:none}

/* =========================================================
   过渡（主题切换时全局平滑）
   ========================================================= */
html.theme-anim *, html.theme-anim *::before, html.theme-anim *::after{
  transition: background-color .45s ease, color .35s ease, border-color .45s ease, box-shadow .45s ease !important;
}

/* =========================================================
   黑夜模式（默认白天，html[data-theme=dark] 触发）
   ========================================================= */
html[data-theme="dark"]{
  color-scheme: dark;
}
html[data-theme="dark"] body{
  --canvas:#1c1a24;
  --foreground:#ECECF2;
  --muted:#A9A5B8;
  --deep:#2a2636;
  --soft:#2a2636;
  --card-bg:rgba(42,38,54,.55);
  background:#1c1a24;
  color:#ECECF2;
}
html[data-theme="dark"] .nav{
  background:rgba(30,28,40,.5);
  border-color:rgba(255,255,255,.12);
  box-shadow:inset 1px -1px 1px rgba(255,255,255,.06),0 16px 32px rgba(0,0,0,.5);
}
html[data-theme="dark"] .nav-links a{color:#ECECF2}
html[data-theme="dark"] .nav-links li .liquid{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12)}
html[data-theme="dark"] .theme-toggle{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#ECECF2}
html[data-theme="dark"] .icon-sun{display:none}
html[data-theme="dark"] .icon-moon{display:block}
/* 卡片类统一深色玻璃 */
html[data-theme="dark"] .bento-card,
html[data-theme="dark"] .post-card,
html[data-theme="dark"] .price-card,
html[data-theme="dark"] .note-card,
html[data-theme="dark"] .faq-item,
html[data-theme="dark"] .how-step,
html[data-theme="dark"] .stat-orb,
html[data-theme="dark"] .social-btn,
html[data-theme="dark"] .chip,
html[data-theme="dark"] .tag-pill,
html[data-theme="dark"] .hero-badge,
html[data-theme="dark"] .benefit-row,
html[data-theme="dark"] .article-card,
html[data-theme="dark"] .arc-item,
html[data-theme="dark"] .post-media{
  background:rgba(42,38,54,.6);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:14px 14px 32px rgba(0,0,0,.4),inset 1px 1px 1px rgba(255,255,255,.08);
}
html[data-theme="dark"] .bento-hero{background:rgba(42,38,54,.72)}
html[data-theme="dark"] .card-text, html[data-theme="dark"] .arc-summary, html[data-theme="dark"] .post-date,
html[data-theme="dark"] .footer-desc, html[data-theme="dark"] .foot-link, html[data-theme="dark"] .foot-note,
html[data-theme="dark"] .article-body, html[data-theme="dark"] .sec-sub, html[data-theme="dark"] .note-text{color:#B6B2C6}
html[data-theme="dark"] .post-title, html[data-theme="dark"] .card-title, html[data-theme="dark"] .arc-title,
html[data-theme="dark"] .article-title, html[data-theme="dark"] .price-name, html[data-theme="dark"] .faq-q{color:#ECECF2}
html[data-theme="dark"] .clay-btn-secondary{background:rgba(255,255,255,.08);color:#ECECF2;box-shadow:8px 10px 18px rgba(0,0,0,.3)}
html[data-theme="dark"] .clay-btn-ghost{background:rgba(255,255,255,.08);color:#ECECF2}
html[data-theme="dark"] .footer{
  background:rgba(28,26,36,.6);
  box-shadow:0 -20px 60px rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.06);
}
html[data-theme="dark"] .footer-bottom{border-top-color:rgba(124,58,237,.25)}
html[data-theme="dark"] .footer-bottom, html[data-theme="dark"] .icp a{color:#A9A5B8}
html[data-theme="dark"] .to-top{background:rgba(42,38,54,.8);color:#ECECF2;box-shadow:8px 10px 20px rgba(0,0,0,.4)}
html[data-theme="dark"] .read-progress{background:linear-gradient(90deg,#7C3AED,#DB2777,#0EA5E9)}
html[data-theme="dark"] .article-body blockquote{background:rgba(124,58,237,.15)}
html[data-theme="dark"] .article-body pre{background:#2a2636;box-shadow:inset 4px 4px 10px rgba(0,0,0,.4)}
html[data-theme="dark"] .article-body code{background:rgba(124,58,237,.25);color:#C4B5FD}
html[data-theme="dark"] .peek-panel{background:linear-gradient(135deg,rgba(124,58,237,.3),rgba(124,58,237,.4))}
html[data-theme="dark"] .post-media img, html[data-theme="dark"] .post-img{filter:brightness(.9)}
html[data-theme="dark"] .clay-input{background:#2a2636;color:#ECECF2;box-shadow:inset 6px 6px 12px rgba(0,0,0,.4),inset -6px -6px 12px rgba(255,255,255,.03)}
html[data-theme="dark"] .clay-input::placeholder{color:#8a8698}
html[data-theme="dark"] .blob{opacity:.4}
/* 玻璃浮动装饰在深色下更亮 */
html[data-theme="dark"] .hero-badge, html[data-theme="dark"] .check-orb{box-shadow:none}
@media (prefers-reduced-motion: reduce){
  html.theme-anim *{transition:none !important}
}

/* =========================================================
   主题切换过渡遮罩（浅色 -> 黑夜页面跳转）
   ========================================================= */
#theme-veil{position:fixed;inset:0;z-index:9999;pointer-events:none;opacity:0;transition:opacity .42s ease;
  background:radial-gradient(120% 100% at 50% 40%,#1a1428,#08080c 70%)}
#theme-veil.on{opacity:1}