/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --primary: #0B1B2A;
  --primary-deep: #081420;
  --primary-light: #0F263A;
  --amber: #C9874F;
  --brown: #A8693C;
  --bamboo: #5E7D62;
  --slate: #5B7A9A;
  --teagold: #E8B07A;
  --cyan: #7FD1E8;
  --text-primary: rgba(255,255,255,0.94);
  --text-muted: rgba(255,255,255,0.65);
  --text-faint: rgba(255,255,255,0.42);
  --card-bg: rgba(255,255,255,0.06);
  --card-bg-strong: rgba(255,255,255,0.09);
  --card-border: rgba(255,255,255,0.12);
  --card-border-hover: rgba(232,176,122,0.45);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 20px 40px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 32px rgba(232,176,122,0.28);
  --container-max: 1200px;
  --nav-height: 74px;
  --space-section: 110px;
  --space-section-sm: 68px;
  --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC","Inter",system-ui,-apple-system,sans-serif;
  --transition: all .3s cubic-bezier(.4,0,.2,1);
}

/* ============ Reset与基础 ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-sans);
  background:var(--primary-deep);
  color:var(--text-primary);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--teagold);text-decoration:none;transition:var(--transition)}
a:hover{color:#f0c89a}
button{font-family:inherit;border:none;background:none;cursor:pointer}
ul,ol{list-style:none}
input,textarea{font-family:inherit;font-size:inherit}
::selection{background:rgba(232,176,122,.3)}

/* ============ 容器 ============ */
.container{
  max-width:var(--container-max);
  margin:0 auto;
  padding:0 20px;
}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:var(--nav-height);
  background:rgba(8,20,32,.72);
  backdrop-filter:blur(22px);
  -webkit-backdrop-filter:blur(22px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:var(--transition);
}
.site-header.scrolled{
  background:rgba(8,20,32,.92);
  box-shadow:0 8px 32px rgba(0,0,0,.4);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:100%;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--text-primary);
  font-weight:600;
  font-size:1.18rem;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand-icon{
  width:44px;height:44px;
  border-radius:12px;
  background:linear-gradient(135deg,rgba(232,176,122,.25),rgba(201,135,79,.12));
  border:1px solid rgba(232,176,122,.3);
  display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;
  color:var(--teagold);
  box-shadow:0 0 18px rgba(232,176,122,.15);
  flex-shrink:0;
}
.brand-text .brand-sub{
  display:block;
  font-size:.68rem;
  color:var(--text-muted);
  font-weight:400;
  letter-spacing:.06em;
  margin-top:-2px;
}
.main-nav ul{
  display:flex;
  align-items:center;
  gap:6px;
}
.main-nav a{
  display:block;
  padding:8px 18px;
  color:var(--text-muted);
  font-size:.95rem;
  border-radius:999px;
  transition:var(--transition);
  position:relative;
  font-weight:400;
}
.main-nav a:hover{
  color:#fff;
  background:rgba(255,255,255,.06);
}
.main-nav a.active{
  color:var(--teagold);
  background:rgba(232,176,122,.1);
  box-shadow:inset 0 0 0 1px rgba(232,176,122,.18);
}
.main-nav a.active::after{
  content:"";
  position:absolute;
  bottom:2px;left:50%;
  transform:translateX(-50%);
  width:18px;height:2px;
  background:var(--teagold);
  border-radius:2px;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.14);
  color:var(--text-primary);
  font-size:1.2rem;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.04);
}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  padding:calc(var(--nav-height) + 40px) 0 80px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  z-index:0;
}
.hero-bg::before{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(135deg,rgba(8,20,32,.72) 0%,rgba(11,27,42,.82) 50%,rgba(11,27,42,.94) 100%);
}
.hero-bg img{
  width:100%;height:100%;
  object-fit:cover;
  position:absolute;inset:0;
}
.hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at 60% 50%,transparent 0%,black 70%);
  -webkit-mask-image:radial-gradient(ellipse at 60% 50%,transparent 0%,black 70%);
}
.hero-path{
  position:absolute;
  right:-80px;bottom:8%;
  width:520px;height:520px;
  opacity:.55;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.05fr .8fr;
  gap:64px;
  align-items:center;
  width:100%;
}
.hero-content{
  max-width:640px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 18px;
  border-radius:999px;
  background:rgba(232,176,122,.1);
  border:1px solid rgba(232,176,122,.25);
  color:var(--teagold);
  font-size:.85rem;
  margin-bottom:28px;
  letter-spacing:.04em;
}
.hero-badge i{
  font-size:.75rem;
  color:var(--teagold);
}
.hero h1{
  font-size:clamp(2rem,5vw,3.3rem);
  line-height:1.18;
  font-weight:700;
  letter-spacing:.01em;
  color:#fff;
  margin-bottom:20px;
  text-shadow:0 4px 30px rgba(0,0,0,.4);
}
.hero h1 .highlight{
  color:var(--teagold);
  font-weight:700;
}
.hero-desc{
  font-size:1.06rem;
  color:var(--text-muted);
  max-width:560px;
  margin-bottom:36px;
  line-height:1.8;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:44px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 32px;
  border-radius:999px;
  font-size:1rem;
  font-weight:500;
  transition:var(--transition);
  letter-spacing:.01em;
  border:1px solid transparent;
}
.btn:focus-visible{
  outline:2px solid var(--teagold);
  outline-offset:3px;
}
.btn:active{
  transform:translateY(1px);
}
.btn-primary{
  background:linear-gradient(135deg,var(--teagold),#D99A62);
  color:#271a0e;
  box-shadow:0 4px 24px rgba(232,176,122,.35);
}
.btn-primary:hover{
  box-shadow:0 8px 34px rgba(232,176,122,.5);
  transform:translateY(-2px);
  color:#271a0e;
}
.btn-primary:active{
  transform:translateY(0);
}
.btn-outline{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.22);
  color:var(--text-primary);
  backdrop-filter:blur(10px);
}
.btn-outline:hover{
  background:rgba(255,255,255,.12);
  border-color:rgba(232,176,122,.4);
  color:var(--teagold);
  transform:translateY(-2px);
}
.hero-metrics{
  display:flex;
  gap:36px;
  flex-wrap:wrap;
}
.metric-item{
  padding-left:16px;
  border-left:2px solid rgba(232,176,122,.5);
}
.metric-item .num{
  font-size:1.5rem;
  font-weight:700;
  color:#fff;
}
.metric-item .label{
  font-size:.82rem;
  color:var(--text-muted);
  display:block;
  margin-top:2px;
}

/* 茶券 */
.hero-coupon{
  position:relative;
  z-index:3;
}
.coupon-card{
  background:rgba(255,255,255,.08);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-card);
  padding:30px;
  position:relative;
  overflow:hidden;
  max-width:420px;
  margin-left:auto;
}
.coupon-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--teagold),rgba(232,176,122,.2));
}
.coupon-card::after{
  content:"";
  position:absolute;
  top:100px;right:-60px;
  width:180px;height:180px;
  border-radius:50%;
  background:rgba(232,176,122,.16);
  filter:blur(50px);
  pointer-events:none;
  z-index:0;
}
.coupon-top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:22px;
  position:relative;
  z-index:1;
}
.coupon-brand{
  font-weight:600;
  color:#fff;
  font-size:.95rem;
}
.coupon-badge{
  display:inline-flex;
  align-items:center;
  padding:4px 14px;
  border-radius:999px;
  background:rgba(232,176,122,.18);
  border:1px solid rgba(232,176,122,.4);
  color:var(--teagold);
  font-size:.75rem;
  letter-spacing:.05em;
}
.coupon-main{
  text-align:center;
  padding:18px 0 20px;
  position:relative;
  z-index:1;
}
.coupon-label{
  font-size:.85rem;
  color:var(--text-muted);
  margin-bottom:6px;
}
.coupon-value{
  font-size:2.4rem;
  font-weight:800;
  color:var(--teagold);
  line-height:1.2;
  letter-spacing:.03em;
  text-shadow:0 0 30px rgba(232,176,122,.4);
  margin-bottom:10px;
}
.coupon-desc{
  font-size:.88rem;
  color:var(--text-muted);
  max-width:300px;
  margin:0 auto;
  line-height:1.7;
}
.coupon-meta{
  display:flex;
  justify-content:center;
  gap:24px;
  padding:16px 0 20px;
  font-size:.78rem;
  color:var(--text-faint);
  border-top:1px dashed rgba(255,255,255,.15);
  border-bottom:1px dashed rgba(255,255,255,.15);
  margin-bottom:22px;
  position:relative;
  z-index:1;
}
.coupon-meta span{
  display:flex;
  align-items:center;
  gap:6px;
}
.coupon-btn{
  width:100%;
  padding:15px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--teagold),#e0a16a);
  color:#271a0e;
  font-size:1rem;
  font-weight:600;
  box-shadow:0 4px 24px rgba(232,176,122,.35);
  transition:var(--transition);
  position:relative;
  z-index:1;
}
.coupon-btn:hover{
  box-shadow:0 8px 34px rgba(232,176,122,.5);
  transform:translateY(-2px);
}
.coupon-btn:active{
  transform:translateY(0);
}
.coupon-btn.copied{
  background:linear-gradient(135deg,#5E7D62,#7a9a7e);
  color:#fff;
}

/* ============ 通用板块 ============ */
.section{
  padding:var(--space-section) 0;
  position:relative;
}
.section-alt{
  background:linear-gradient(180deg,var(--primary-deep),rgba(11,27,42,.92));
}
.section-head{
  text-align:center;
  max-width:720px;
  margin:0 auto 70px;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 18px;
  border-radius:999px;
  background:rgba(232,176,122,.08);
  border:1px solid rgba(232,176,122,.22);
  color:var(--teagold);
  font-size:.8rem;
  letter-spacing:.08em;
  margin-bottom:20px;
}
.section-tag i{
  font-size:.7rem;
}
.section-head h2{
  font-size:clamp(1.5rem,3vw,2.2rem);
  font-weight:700;
  line-height:1.3;
  color:#fff;
  margin-bottom:16px;
}
.section-head p{
  font-size:1rem;
  color:var(--text-muted);
  line-height:1.75;
}

/* ============ 茶品轨道 ============ */
.tea-track{
  padding:80px 0 var(--space-section);
  position:relative;
  overflow:hidden;
}
.tea-track::before{
  content:"";
  position:absolute;
  top:120px;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(232,176,122,.15),transparent);
}
.track-scroller{
  display:flex;
  gap:24px;
  overflow-x:auto;
  padding:20px 20px 30px;
  margin:0 -20px;
  scrollbar-width:thin;
  scrollbar-color:rgba(232,176,122,.3) rgba(255,255,255,.04);
}
.track-scroller::-webkit-scrollbar{
  height:6px;
}
.track-scroller::-webkit-scrollbar-track{
  background:rgba(255,255,255,.04);
  border-radius:10px;
}
.track-scroller::-webkit-scrollbar-thumb{
  background:rgba(232,176,122,.3);
  border-radius:10px;
}
.track-item{
  flex:0 0 280px;
  background:var(--card-bg);
  backdrop-filter:blur(16px);
  border:1px solid var(--card-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:var(--transition);
  position:relative;
}
.track-item:hover{
  transform:translateY(-6px);
  border-color:var(--card-border-hover);
  box-shadow:0 16px 40px rgba(0,0,0,.4),0 0 24px rgba(232,176,122,.12);
}
.track-img{
  position:relative;
  height:190px;
  overflow:hidden;
}
.track-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.track-item:hover .track-img img{
  transform:scale(1.06);
}
.track-img::after{
  content:"";
  position:absolute;
  bottom:0;left:0;right:0;
  height:80px;
  background:linear-gradient(to top,rgba(8,20,32,.8),transparent);
}
.track-badge{
  position:absolute;
  top:14px;left:14px;
  z-index:2;
  padding:4px 14px;
  border-radius:999px;
  background:rgba(8,20,32,.65);
  backdrop-filter:blur(8px);
  border:1px solid rgba(232,176,122,.3);
  color:var(--teagold);
  font-size:.75rem;
  letter-spacing:.04em;
}
.track-body{
  padding:20px 20px 22px;
}
.track-body h3{
  font-size:1.12rem;
  color:#fff;
  margin-bottom:6px;
  font-weight:600;
}
.track-body p{
  font-size:.85rem;
  color:var(--text-muted);
  line-height:1.65;
  margin-bottom:14px;
}
.track-link{
  font-size:.82rem;
  color:var(--teagold);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
}
.track-link:hover{
  gap:10px;
  color:#f0c89a;
}
.track-link i{
  font-size:.7rem;
}

/* ============ 功能分组 ============ */
.feature-group{
  display:grid;
  grid-template-columns:1fr;
  gap:96px;
}
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:72px;
  align-items:center;
  position:relative;
}
.feature-row:nth-child(even) .feature-media{
  order:1;
}
.feature-row:nth-child(even) .feature-info{
  order:2;
}
.feature-info{
  position:relative;
}
.feature-icon{
  width:56px;height:56px;
  border-radius:16px;
  background:linear-gradient(135deg,rgba(232,176,122,.2),rgba(201,135,79,.08));
  border:1px solid rgba(232,176,122,.25);
  display:flex;align-items:center;justify-content:center;
  color:var(--teagold);
  font-size:1.4rem;
  margin-bottom:22px;
  box-shadow:0 0 20px rgba(232,176,122,.12);
}
.feature-info h3{
  font-size:clamp(1.3rem,2.2vw,1.7rem);
  color:#fff;
  font-weight:700;
  margin-bottom:14px;
}
.feature-info .feature-desc{
  color:var(--text-muted);
  font-size:.98rem;
  line-height:1.75;
  margin-bottom:24px;
}
.feature-list{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.feature-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:.92rem;
  color:var(--text-primary);
}
.feature-list li i{
  color:var(--teagold);
  font-size:.8rem;
  margin-top:5px;
  flex-shrink:0;
}
.feature-path{
  position:absolute;
  width:120px;height:120px;
  pointer-events:none;
  opacity:.4;
  z-index:0;
}
.feature-media{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  min-height:340px;
}
.feature-media img{
  width:100%;height:100%;
  object-fit:cover;
  min-height:340px;
}
.feature-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(8,20,32,.15),rgba(8,20,32,.4));
}
.feature-media .tag{
  position:absolute;
  bottom:20px;left:20px;
  z-index:2;
  padding:6px 16px;
  border-radius:999px;
  background:rgba(8,20,32,.55);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;
  font-size:.85rem;
}

/* ============ 使用场景 ============ */
.scenarios{
  padding:var(--space-section) 0;
  background:
    radial-gradient(ellipse at 80% 30%,rgba(232,176,122,.06),transparent 50%),
    var(--primary-deep);
  position:relative;
}
.scenario-map{
  position:relative;
  margin:0 auto;
  max-width:980px;
}
.scenario-svg{
  position:absolute;
  top:0;left:0;
  width:100%;height:100%;
  pointer-events:none;
  z-index:0;
}
.scenario-grid-node{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px 60px;
  position:relative;
  z-index:1;
}
.scenario-node{
  background:rgba(255,255,255,.07);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-xl);
  padding:30px 28px;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
  box-shadow:0 12px 32px rgba(0,0,0,.2);
}
.scenario-node:hover{
  transform:translateY(-6px);
  border-color:rgba(232,176,122,.38);
  box-shadow:var(--shadow-card),0 0 24px rgba(232,176,122,.1);
}
.scenario-node:nth-child(2){
  margin-top:60px;
}
.scenario-node:nth-child(3){
  margin-top:18px;
}
.scenario-node:nth-child(4){
  margin-top:78px;
}
.scenario-node .dot{
  position:absolute;
  top:18px;left:18px;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--teagold);
  box-shadow:0 0 14px rgba(232,176,122,.7);
}
.scenario-node .dot::after{
  content:"";
  position:absolute;
  inset:-4px;
  border-radius:50%;
  border:1px solid rgba(232,176,122,.4);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{transform:scale(.8);opacity:.8}
  100%{transform:scale(1.6);opacity:0}
}
.scenario-node .icon{
  width:46px;height:46px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(232,176,122,.1);
  border:1px solid rgba(232,176,122,.2);
  color:var(--teagold);
  font-size:1.2rem;
  margin-bottom:18px;
}
.scenario-node h3{
  font-size:1.12rem;
  color:#fff;
  font-weight:600;
  margin-bottom:8px;
}
.scenario-node p{
  font-size:.88rem;
  color:var(--text-muted);
  line-height:1.7;
}
.scenario-node .tea-tip{
  display:inline-block;
  margin-top:14px;
  padding:4px 14px;
  border-radius:999px;
  background:rgba(94,125,98,.16);
  border:1px solid rgba(94,125,98,.35);
  color:#9dc2a3;
  font-size:.78rem;
}

/* ============ 成功案例 ============ */
.cases{
  padding:var(--space-section) 0;
}
.case-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.case-card{
  grid-column:span 4;
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-xl);
  overflow:hidden;
  transition:var(--transition);
  display:flex;
  flex-direction:column;
}
.case-card:hover{
  transform:translateY(-6px);
  border-color:rgba(232,176,122,.4);
  box-shadow:var(--shadow-card),0 0 28px rgba(232,176,122,.1);
}
.case-card:nth-child(1){grid-column:span 5}
.case-card:nth-child(2){grid-column:span 4}
.case-card:nth-child(3){grid-column:span 3}
.case-card .case-img{
  height:200px;
  overflow:hidden;
  position:relative;
}
.case-card .case-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.case-card:hover .case-img img{
  transform:scale(1.05);
}
.case-card .case-img::after{
  content:"";
  position:absolute;
  bottom:0;left:0;right:0;
  height:70px;
  background:linear-gradient(to top,rgba(8,20,32,.75),transparent);
}
.case-type{
  position:absolute;
  top:14px;right:14px;
  z-index:2;
  padding:4px 14px;
  border-radius:999px;
  background:rgba(8,20,32,.6);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.16);
  color:var(--teagold);
  font-size:.74rem;
  letter-spacing:.04em;
}
.case-body{
  padding:24px 24px 26px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.case-body h3{
  font-size:1.06rem;
  color:#fff;
  font-weight:600;
  margin-bottom:10px;
}
.case-body .group-label{
  font-size:.74rem;
  color:var(--text-faint);
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:6px;
}
.case-body p{
  font-size:.88rem;
  color:var(--text-muted);
  line-height:1.7;
  flex:1;
}
.case-body .case-footer{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.08);
}
.case-body .case-footer span{
  font-size:.8rem;
  color:var(--text-faint);
}
.case-body .case-footer a{
  font-size:.82rem;
  color:var(--teagold);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.case-body .case-footer a:hover{
  gap:10px;
}

/* ============ 价格 ============ */
.pricing{
  position:relative;
  padding:var(--space-section) 0;
  background:
    linear-gradient(180deg,rgba(11,27,42,.4),rgba(8,20,32,.9)),
    radial-gradient(circle at 30% 60%,rgba(232,176,122,.08),transparent 45%);
}
.pricing-grid{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:24px;
  align-items:stretch;
  margin-bottom:60px;
}
.price-card{
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-xl);
  padding:36px 32px;
  display:flex;
  flex-direction:column;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.price-card::before{
  content:"";
  position:absolute;
  bottom:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.12),transparent);
}
.price-card:hover{
  transform:translateY(-6px);
  border-color:rgba(232,176,122,.35);
  box-shadow:var(--shadow-card),0 0 24px rgba(232,176,122,.08);
}
.price-card.featured{
  background:linear-gradient(180deg,rgba(232,176,122,.1),rgba(255,255,255,.05));
  border-color:rgba(232,176,122,.4);
  box-shadow:var(--shadow-card),0 0 34px rgba(232,176,122,.18);
}
.price-card.featured::after{
  content:"最受欢迎";
  position:absolute;
  top:16px;right:-36px;
  background:linear-gradient(135deg,var(--teagold),#D99A62);
  color:#271a0e;
  font-size:.72rem;
  font-weight:600;
  padding:5px 42px;
  transform:rotate(45deg);
  letter-spacing:.04em;
  box-shadow:0 2px 10px rgba(232,176,122,.3);
}
.price-name{
  font-size:1.15rem;
  font-weight:700;
  color:#fff;
  margin-bottom:6px;
}
.price-desc{
  font-size:.85rem;
  color:var(--text-muted);
  margin-bottom:20px;
  line-height:1.6;
}
.price-amount{
  font-size:2.3rem;
  font-weight:800;
  color:var(--teagold);
  letter-spacing:-.02em;
  margin-bottom:6px;
}
.price-amount small{
  font-size:1rem;
  font-weight:400;
  color:var(--text-muted);
}
.price-unit{
  font-size:.78rem;
  color:var(--text-faint);
  margin-bottom:24px;
}
.price-features{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin-bottom:30px;
  flex:1;
}
.price-features li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:.9rem;
  color:var(--text-primary);
  line-height:1.6;
}
.price-features li i{
  color:var(--teagold);
  font-size:.78rem;
  margin-top:5px;
  flex-shrink:0;
}
.price-btn{
  width:100%;
  padding:14px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.2);
  color:var(--text-primary);
  font-size:.95rem;
  font-weight:500;
  text-align:center;
  transition:var(--transition);
}
.price-btn:hover{
  background:rgba(232,176,122,.15);
  border-color:rgba(232,176,122,.4);
  color:var(--teagold);
}
.price-btn.warm{
  background:linear-gradient(135deg,var(--teagold),#D99A62);
  color:#271a0e;
  border-color:transparent;
  box-shadow:0 4px 20px rgba(232,176,122,.3);
}
.price-btn.warm:hover{
  box-shadow:0 8px 30px rgba(232,176,122,.45);
  transform:translateY(-2px);
  color:#271a0e;
}

/* 课程列表 */
.course-list{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-xl);
  overflow:hidden;
}
.course-list-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 28px;
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:var(--transition);
}
.course-list-row:last-child{
  border-bottom:none;
}
.course-list-row:hover{
  background:rgba(232,176,122,.04);
}
.course-list-row .info h4{
  font-size:1rem;
  color:#fff;
  font-weight:600;
  margin-bottom:4px;
}
.course-list-row .info p{
  font-size:.84rem;
  color:var(--text-muted);
}
.course-list-row .right{
  display:flex;
  align-items:center;
  gap:20px;
}
.course-list-row .price-tag{
  font-size:1.1rem;
  font-weight:700;
  color:var(--teagold);
  white-space:nowrap;
}
.course-list-row .course-btn{
  padding:8px 20px;
  border-radius:999px;
  border:1px solid rgba(232,176,122,.35);
  color:var(--teagold);
  font-size:.84rem;
  transition:var(--transition);
}
.course-list-row .course-btn:hover{
  background:rgba(232,176,122,.15);
  box-shadow:0 0 20px rgba(232,176,122,.15);
}

/* ============ 资讯 ============ */
.news{
  padding:var(--space-section) 0;
  background:
    radial-gradient(ellipse at 15% 40%,rgba(94,125,98,.08),transparent 55%),
    var(--primary-deep);
  margin-top:60px;
}
.news-layout{
  display:grid;
  grid-template-columns:1.4fr .7fr;
  gap:48px;
}
.news-list{
  display:flex;
  flex-direction:column;
}
.news-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:var(--transition);
  gap:20px;
}
.news-item:first-child{
  padding-top:0;
}
.news-item:hover{
  padding-left:14px;
}
.news-item .date{
  color:var(--text-faint);
  font-size:.8rem;
  white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
.news-item .title{
  color:var(--text-primary);
  font-size:.98rem;
  transition:var(--transition);
  margin-right:auto;
}
.news-item:hover .title{
  color:var(--teagold);
}
.news-item .arrow{
  color:var(--text-faint);
  font-size:.8rem;
  transition:var(--transition);
  flex-shrink:0;
}
.news-item:hover .arrow{
  color:var(--teagold);
  transform:translateX(4px);
}
.news-sidebar{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-xl);
  padding:28px;
}
.news-sidebar h4{
  font-size:1.02rem;
  color:#fff;
  font-weight:600;
  margin-bottom:22px;
  padding-bottom:14px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.hot-tag{
  display:inline-block;
  margin-top:6px;
  margin-bottom:4px;
}
.hot-list{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.hot-list li a{
  font-size:.88rem;
  color:var(--text-muted);
  display:flex;
  align-items:center;
  gap:8px;
  line-height:1.6;
  transition:var(--transition);
}
.hot-list li a:hover{
  color:var(--teagold);
  transform:translateX(3px);
}
.hot-list li a i{
  color:var(--teagold);
  font-size:.6rem;
}

/* ============ FAQ ============ */
.faq{
  padding:var(--space-section) 0;
}
.faq-wrap{
  max-width:860px;
  margin:0 auto;
}
.faq-item{
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-lg);
  margin-bottom:14px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(232,176,122,.25);
}
.faq-item.active{
  border-color:rgba(232,176,122,.35);
  background:rgba(255,255,255,.07);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 26px;
  font-size:1rem;
  color:var(--text-primary);
  text-align:left;
  font-weight:500;
  transition:var(--transition);
}
.faq-q:hover{
  color:var(--teagold);
}
.faq-q .icon{
  width:32px;height:32px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;
  font-size:.7rem;
  color:var(--text-muted);
  transition:var(--transition);
  flex-shrink:0;
}
.faq-item.active .faq-q .icon{
  transform:rotate(180deg);
  border-color:rgba(232,176,122,.4);
  color:var(--teagold);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-a-inner{
  padding:0 26px 24px;
  font-size:.92rem;
  color:var(--text-muted);
  line-height:1.75;
}

/* ============ CTA ============ */
.cta-section{
  padding:var(--space-section) 0;
  position:relative;
  overflow:hidden;
}
.cta-block{
  position:relative;
  border-radius:var(--radius-xl);
  padding:76px 64px;
  text-align:center;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(15,38,58,.92),rgba(11,27,42,.96));
  border:1px solid rgba(232,176,122,.18);
  box-shadow:var(--shadow-card);
}
.cta-block::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 30% 0%,rgba(232,176,122,.14),transparent 50%),
    radial-gradient(ellipse at 80% 100%,rgba(127,209,232,.08),transparent 50%);
}
.cta-block .cta-inner{
  position:relative;
  z-index:1;
  max-width:640px;
  margin:0 auto;
}
.cta-block h2{
  font-size:clamp(1.5rem,3vw,2.2rem);
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.cta-block p{
  font-size:1.02rem;
  color:var(--text-muted);
  line-height:1.75;
  margin-bottom:36px;
}
.cta-actions{
  display:flex;
  gap:14px;
  justify-content:center;
  flex-wrap:wrap;
}
.cta-contact{
  margin-top:28px;
  font-size:.85rem;
  color:var(--text-faint);
}
.cta-contact a{
  color:var(--teagold);
}
.cta-contact a:hover{
  color:#f0c89a;
}

/* ============ 页脚 ============ */
.site-footer{
  background:rgba(4,10,18,.92);
  border-top:1px solid rgba(255,255,255,.06);
  padding:64px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(232,176,122,.2),transparent);
}
.footer-inner{
  display:grid;
  grid-template-columns:1.2fr .8fr 1fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .brand{
  font-size:1.1rem;
  margin-bottom:14px;
}
.footer-about{
  font-size:.88rem;
  color:var(--text-muted);
  line-height:1.75;
  max-width:320px;
  margin-top:14px;
}
.footer-title{
  font-size:.95rem;
  color:#fff;
  font-weight:600;
  margin-bottom:20px;
  letter-spacing:.02em;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.footer-links a{
  font-size:.88rem;
  color:var(--text-muted);
  transition:var(--transition);
  width:fit-content;
}
.footer-links a:hover{
  color:var(--teagold);
  transform:translateX(4px);
}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:.88rem;
  color:var(--text-muted);
}
.footer-contact li i{
  color:var(--teagold);
  margin-top:5px;
  width:14px;
  text-align:center;
  flex-shrink:0;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:.8rem;
  color:var(--text-faint);
}
.footer-bottom a{
  color:var(--text-faint);
}
.footer-bottom a:hover{
  color:var(--teagold);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-inner{
    grid-template-columns:1fr;
    gap:50px;
  }
  .hero-coupon .coupon-card{
    margin:0 auto;
    max-width:440px;
  }
  .feature-row{
    grid-template-columns:1fr;
    gap:44px;
  }
  .feature-row:nth-child(even) .feature-media{
    order:0;
  }
  .feature-row:nth-child(even) .feature-info{
    order:0;
  }
  .case-card,.case-card:nth-child(1),.case-card:nth-child(2),.case-card:nth-child(3){
    grid-column:span 6;
  }
  .pricing-grid{
    grid-template-columns:1fr 1fr;
  }
  .price-card:last-child{
    grid-column:span 2;
  }
  .footer-inner{
    grid-template-columns:1fr 1fr;
  }
}

@media (max-width:768px){
  :root{
    --space-section:64px;
    --nav-height:64px;
  }
  .nav-toggle{
    display:flex;
  }
  .main-nav{
    position:fixed;
    top:var(--nav-height);
    left:0;right:0;
    background:rgba(8,20,32,.97);
    backdrop-filter:blur(24px);
    padding:10px 20px 24px;
    border-bottom:1px solid rgba(255,255,255,.1);
    transform:translateY(-120%);
    opacity:0;
    transition:var(--transition);
    visibility:hidden;
  }
  .main-nav.open{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
  }
  .main-nav ul{
    flex-direction:column;
    gap:0;
  }
  .main-nav a{
    padding:14px 16px;
    font-size:1rem;
    border-radius:12px;
    border-bottom:1px solid rgba(255,255,255,.05);
  }
  .main-nav a.active::after{
    display:none;
  }
  .hero{
    padding-top:calc(var(--nav-height) + 30px);
    min-height:auto;
  }
  .hero h1{
    font-size:1.72rem;
  }
  .hero-desc{
    font-size:.95rem;
  }
  .hero-metrics{
    gap:20px;
  }
  .scenario-grid-node{
    grid-template-columns:1fr;
    gap:24px;
  }
  .scenario-node:nth-child(2),
  .scenario-node:nth-child(3),
  .scenario-node:nth-child(4){
    margin-top:0;
  }
  .case-card,.case-card:nth-child(1),.case-card:nth-child(2),.case-card:nth-child(3){
    grid-column:span 12;
  }
  .pricing-grid{
    grid-template-columns:1fr;
  }
  .price-card:last-child{
    grid-column:span 1;
  }
  .news-layout{
    grid-template-columns:1fr;
  }
  .cta-block{
    padding:50px 28px;
  }
  .course-list-row{
    flex-direction:column;
    align-items:flex-start;
    gap:14px;
    padding:18px 20px;
  }
  .course-list-row .right{
    width:100%;
    justify-content:space-between;
  }
  .footer-inner{
    grid-template-columns:1fr;
    gap:36px;
  }
}

@media (max-width:520px){
  .container{
    padding:0 16px;
  }
  .hero-actions{
    flex-direction:column;
  }
  .hero-actions .btn{
    width:100%;
  }
  .brand-text{
    font-size:.95rem;
  }
  .feature-media,.feature-media img{
    min-height:260px;
  }
  .scenario-node{
    padding:24px 20px;
  }
  .price-card{
    padding:28px 22px;
  }
  .news-item .date{
    font-size:.7rem;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}