/* roulang page: index */
:root{
  --c-primary:#2A1B2E;
  --c-primary-soft:#3A2A40;
  --c-mist:#7FB2A8;
  --c-accent:#FF6A3D;
  --c-bg:#F7F5F1;
  --c-card:#FFFFFF;
  --c-sub:#EFEBE4;
  --c-text:#12100F;
  --c-text-2:#5C5850;
  --c-line:rgba(18,16,15,.08);
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(18,16,15,.04);
  --shadow-2:0 16px 40px -16px rgba(18,16,15,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:240ms;
  --container:1200px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 0 rgba(18,16,15,.02);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(140deg,var(--c-primary) 0%,var(--c-primary-soft) 60%,#5A3B62 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 6px 16px -8px rgba(42,27,46,.7);
}
.brand-text{font-size:1.0625rem;font-weight:700;color:var(--c-primary);letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;
  font-size:.9375rem;color:var(--c-text-2);border-radius:8px;
  transition:color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--c-sub);border:1px solid transparent;border-radius:999px;
  padding:7px 14px;width:200px;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-search i{color:var(--c-text-2);font-size:.8125rem;}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:.875rem;}
.nav-search input::placeholder{color:#8C877E;}
.nav-search:focus-within{
  border-color:var(--c-mist);background:#fff;
  box-shadow:0 0 0 3px rgba(127,178,168,.18);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;cursor:pointer;font-weight:600;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.btn-primary{background:var(--c-accent);color:#fff;border-radius:999px;padding:11px 22px;font-size:.9375rem;box-shadow:0 10px 24px -14px rgba(255,106,61,.9);}
.btn-primary:hover{transform:translateY(-2px);background:#F2592B;box-shadow:0 16px 30px -14px rgba(255,106,61,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;color:var(--c-primary);border:1px solid rgba(42,27,46,.35);
  border-radius:10px;padding:11px 22px;font-size:.9375rem;position:relative;overflow:hidden;
}
.btn-ghost:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-2px);}
.btn-text{background:none;border:0;color:var(--c-primary);font-weight:600;padding:6px 0;font-size:.9375rem;}
.btn-text i{transition:transform var(--dur) var(--ease);}
.btn-text:hover i{transform:translateX(4px);}
.nav-cta{display:none;}
@media (min-width:1024px){.nav-cta{display:inline-flex;}}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-primary);cursor:pointer;
}
@media (min-width:1024px){
  .nav-toggle{display:none;}
  .nav-links{display:flex;}
}
@media (max-width:1023px){
  .nav-links,.nav-search{display:none;}
}
/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,16,15,.45);z-index:80;
  opacity:0;pointer-events:none;transition:opacity var(--dur) var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;z-index:90;
  background:#fff;padding:24px;transform:translateX(100%);
  transition:transform 280ms var(--ease);overflow-y:auto;
  border-left:1px solid var(--c-line);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--c-line);
  color:var(--c-text-2);font-size:1rem;
}
.drawer-link:hover,.drawer-link.is-active{color:var(--c-primary);font-weight:600;}
.drawer-cta{margin-top:24px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background-color:var(--c-primary);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(112deg,rgba(42,27,46,.94) 0%,rgba(42,27,46,.82) 42%,rgba(42,27,46,.42) 100%),
                   url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr;gap:40px;
  padding:72px 0 80px;
  min-height:78vh;align-content:center;
}
@media (min-width:1024px){
  .hero-inner{grid-template-columns:minmax(0,1fr) 380px;gap:56px;padding:96px 0 104px;align-items:center;}
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;letter-spacing:.12em;color:#D9CFDD;
  border:1px solid rgba(255,255,255,.24);border-radius:999px;padding:6px 14px;
  margin-bottom:22px;
}
.hero-eyebrow span.dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;}
.hero h1{
  font-size:clamp(2.4rem,5vw,4.25rem);
  line-height:1.12;letter-spacing:-.02em;font-weight:700;color:#fff;max-width:640px;
}
.hero h1 em{font-style:normal;color:#FFB79F;}
.hero-sub{
  margin-top:22px;max-width:600px;color:#E4DCE6;font-size:1.0625rem;line-height:1.8;
}
.hero-meta{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;
  color:#CBBFD0;font-size:.875rem;
}
.hero-meta span{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  border-radius:999px;padding:6px 14px;
}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45);}
.hero-actions .btn-ghost:hover{background:#fff;color:var(--c-primary);border-color:#fff;}
.hero-visual{position:relative;}
.hero-visual .frame{
  border-radius:var(--radius-img);overflow:hidden;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.75);
  border:1px solid rgba(255,255,255,.18);
  aspect-ratio:3/4;background:#3A2A40;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;}
.hero-visual .chip{
  position:absolute;left:-14px;bottom:-18px;
  background:#fff;border-radius:12px;padding:14px 18px;
  box-shadow:var(--shadow-2);max-width:230px;
}
.hero-visual .chip strong{display:block;font-size:.8125rem;color:var(--c-text-2);font-weight:500;}
.hero-visual .chip span{display:block;font-size:1.375rem;font-weight:700;color:var(--c-primary);}
@media (max-width:1023px){
  .hero-visual{max-width:320px;margin:0 auto;}
  .hero h1,.hero-sub{max-width:100%;}
}

/* 动效 */
.rise{opacity:0;transform:translateY(18px);animation:rise .62s var(--ease) forwards;}
.rise.d1{animation-delay:.06s}.rise.d2{animation-delay:.14s}.rise.d3{animation-delay:.22s}.rise.d4{animation-delay:.3s}.rise.d5{animation-delay:.38s}
@keyframes rise{to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion:reduce){
  .rise{opacity:1;transform:none;animation:none;}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
@media (min-width:768px){.section{padding:96px 0;}}
.section.tight{padding:48px 0;}
@media (min-width:768px){.section.tight{padding:64px 0;}}
.section-head{max-width:720px;margin-bottom:36px;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:600;letter-spacing:.1em;color:var(--c-mist);
  text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--c-mist);border-radius:2px;}
h2.section-title{
  font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.2;color:var(--c-primary);letter-spacing:-.015em;
}
.section-desc{margin-top:14px;color:var(--c-text-2);font-size:1rem;line-height:1.85;}

.card{
  background:var(--c-card);border-radius:var(--radius-card);
  border:1px solid var(--c-line);box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(42,27,46,.14);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.75rem;font-weight:600;color:#2F6A61;
  background:rgba(127,178,168,.16);border:1px solid rgba(127,178,168,.34);
  border-radius:999px;padding:3px 11px;letter-spacing:.02em;
}
.tag.accent{color:#C2451C;background:rgba(255,106,61,.12);border-color:rgba(255,106,61,.3);}

/* 数据条 */
.stats-strip{
  display:grid;grid-template-columns:1fr;gap:0;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
@media (min-width:640px){.stats-strip{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.stats-strip{grid-template-columns:repeat(4,1fr);}}
.stat-item{padding:26px 26px;border-bottom:1px solid var(--c-line);}
@media (min-width:640px){.stat-item:nth-child(2n){border-right:0;}}
@media (min-width:1024px){.stat-item{border-bottom:0;border-right:1px solid var(--c-line);}.stat-item:last-child{border-right:0;}}
.stat-item .n{font-size:1.875rem;font-weight:700;color:var(--c-primary);line-height:1.2;}
.stat-item .n small{font-size:.9375rem;font-weight:600;color:var(--c-mist);margin-left:4px;}
.stat-item .l{margin-top:6px;font-size:.875rem;color:var(--c-text-2);}

/* 步骤流程 */
.steps{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(3,1fr);}}
.step{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step .idx{
  width:38px;height:38px;border-radius:11px;background:var(--c-sub);
  color:var(--c-primary);font-weight:700;display:flex;align-items:center;justify-content:center;
  font-size:.9375rem;margin-bottom:16px;
}
.step h3{font-size:1.125rem;color:var(--c-primary);margin-bottom:10px;}
.step p{color:var(--c-text-2);font-size:.9375rem;line-height:1.8;}
.step .bar{position:absolute;left:24px;right:24px;bottom:0;height:3px;background:var(--c-mist);opacity:.35;border-radius:3px 3px 0 0;}

/* 时间线 */
.timeline{position:relative;margin-top:8px;}
.timeline-track{position:absolute;left:0;right:0;top:13px;height:2px;background:rgba(127,178,168,.35);}
@media (max-width:767px){
  .timeline-track{display:none;}
}
.timeline-grid{display:grid;grid-template-columns:1fr;gap:28px;position:relative;}
@media (min-width:768px){.timeline-grid{grid-template-columns:repeat(4,1fr);gap:24px;}}
.tl-node{position:relative;padding-left:34px;}
@media (min-width:768px){.tl-node{padding-left:0;padding-top:0;}}
.tl-dot{
  position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--c-mist);z-index:2;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
@media (min-width:768px){.tl-dot{position:relative;left:auto;top:auto;margin-bottom:20px;}}
.tl-node:hover .tl-dot{transform:scale(1.18);border-color:var(--c-accent);box-shadow:0 0 0 6px rgba(255,106,61,.14);}
@media (max-width:767px){
  .timeline-grid::before{
    content:"";position:absolute;left:7px;top:0;bottom:0;width:2px;background:rgba(127,178,168,.35);
  }
}
.tl-time{font-size:.8125rem;color:var(--c-mist);font-weight:700;letter-spacing:.06em;}
.tl-node h3{font-size:1.0625rem;color:var(--c-primary);margin:8px 0 8px;}
.tl-node p{font-size:.875rem;color:var(--c-text-2);line-height:1.75;}

/* 亮点非对称图文 */
.feature-grid{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1024px){
  .feature-grid{grid-template-columns:1.25fr .9fr;gap:32px;align-items:stretch;}
}
.feature-main{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  min-height:340px;box-shadow:var(--shadow-1);
}
.feature-main img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform 320ms var(--ease);}
.feature-main:hover img{transform:scale(1.04);}
.feature-main .overlay{
  position:relative;z-index:2;height:100%;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:30px;
  background:linear-gradient(180deg,rgba(42,27,46,.05) 20%,rgba(42,27,46,.88) 100%);
}
.feature-main .overlay h3{color:#fff;font-size:1.375rem;margin-bottom:10px;}
.feature-main .overlay p{color:#E3DAE6;font-size:.9375rem;max-width:520px;}
.feature-side{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.feature-side{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.feature-side{grid-template-columns:1fr;}}
.mini-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.mini-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-sub);}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.mini-card:hover .thumb img{transform:scale(1.05);}
.mini-card .body{padding:18px 20px 22px;}
.mini-card h3{font-size:1.0625rem;color:var(--c-primary);margin-bottom:8px;}
.mini-card p{font-size:.875rem;color:var(--c-text-2);line-height:1.75;}

/* 方案对比 */
.plans{display:grid;grid-template-columns:1fr;gap:22px;align-items:start;}
@media (min-width:768px){.plans{grid-template-columns:repeat(3,1fr);gap:20px;}}
.plan{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:28px 24px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.plan.featured{
  border-color:rgba(42,27,46,.45);border-width:1.5px;
  box-shadow:0 20px 44px -22px rgba(42,27,46,.42);
}
@media (min-width:768px){.plan.featured{transform:scale(1.03);}.plan.featured:hover{transform:scale(1.03) translateY(-4px);}}
@media (max-width:767px){.plan.featured{order:-1;}}
.plan .badge{
  position:absolute;top:-12px;left:24px;
  background:var(--c-primary);color:#fff;font-size:.75rem;font-weight:600;
  border-radius:999px;padding:4px 12px;letter-spacing:.04em;
}
.plan h3{font-size:1.125rem;color:var(--c-primary);}
.plan .price{margin-top:14px;font-size:1.75rem;font-weight:700;color:var(--c-accent);line-height:1.2;}
.plan .price small{font-size:.875rem;color:var(--c-text-2);font-weight:500;margin-left:6px;}
.plan .desc{margin-top:10px;font-size:.875rem;color:var(--c-text-2);line-height:1.75;min-height:52px;}
.plan ul{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.plan li{display:flex;gap:10px;font-size:.9375rem;color:var(--c-text);line-height:1.65;}
.plan li i{color:var(--c-mist);margin-top:5px;font-size:.8125rem;}
.plan .plan-cta{margin-top:24px;width:100%;}

/* 表单区 */
.enroll{
  background:var(--c-primary);border-radius:var(--radius-card);overflow:hidden;position:relative;
}
.enroll-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(105deg,rgba(42,27,46,.96) 0%,rgba(42,27,46,.86) 55%,rgba(42,27,46,.62) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.enroll-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:36px;padding:44px 24px;}
@media (min-width:1024px){.enroll-inner{grid-template-columns:minmax(0,1fr) 480px;gap:56px;padding:64px 56px;align-items:start;}}
.enroll h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem);line-height:1.2;}
.enroll p.lead{margin-top:16px;color:#DCD2E0;font-size:1rem;line-height:1.85;max-width:460px;}
.enroll-facts{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.enroll-facts li{display:flex;gap:12px;color:#E8E1EA;font-size:.9375rem;line-height:1.7;}
.enroll-facts li i{color:var(--c-mist);margin-top:6px;font-size:.75rem;}
.form-card{background:#fff;border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-2);}
@media (min-width:768px){.form-card{padding:32px 30px;}}
.form-card h3{font-size:1.125rem;color:var(--c-primary);margin-bottom:6px;}
.form-card .hint{font-size:.8125rem;color:var(--c-text-2);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:.8125rem;font-weight:600;color:var(--c-text-2);margin-bottom:7px;}
.field label .req{color:var(--c-accent);margin-left:3px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;background:var(--c-bg);border:1px solid rgba(18,16,15,.14);
  border-radius:var(--radius-input);padding:11px 14px;font-size:.9375rem;outline:none;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.field textarea{min-height:92px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-accent);background:#fff;box-shadow:0 0 0 3px rgba(255,106,61,.16);
}
.field-row{display:grid;grid-template-columns:1fr;gap:0 16px;}
@media (min-width:640px){.field-row{grid-template-columns:1fr 1fr;}}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.8125rem;color:var(--c-text-2);line-height:1.7;}
.check input{margin-top:5px;accent-color:var(--c-accent);width:16px;height:16px;flex-shrink:0;}
.form-submit{width:100%;margin-top:20px;padding:13px 24px;}
.form-note{margin-top:12px;font-size:.75rem;color:#8C877E;line-height:1.7;text-align:center;}

/* 资讯卡片 */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(42,27,46,.14);}
.news-card .cover{aspect-ratio:16/9;overflow:hidden;background:var(--c-sub);}
.news-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.news-card:hover .cover img{transform:scale(1.05);}
.news-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;gap:12px;}
.news-card h3{
  font-size:1.0625rem;color:var(--c-primary);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card .excerpt{
  font-size:.875rem;color:var(--c-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card .meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:.8125rem;color:#8C877E;padding-top:14px;border-top:1px solid var(--c-line);
}
.empty-state{
  grid-column:1/-1;border:1px dashed rgba(18,16,15,.18);border-radius:var(--radius-card);
  background:#fff;padding:52px 24px;text-align:center;
}
.empty-state i{font-size:1.5rem;color:var(--c-mist);}
.empty-state p{margin-top:14px;color:var(--c-text-2);font-size:.9375rem;}
.empty-state a{display:inline-block;margin-top:16px;color:var(--c-primary);font-weight:600;font-size:.9375rem;}
.empty-state a i{font-size:.8125rem;margin-left:4px;transition:transform var(--dur) var(--ease);}
.empty-state a:hover i{transform:translateX(4px);}

/* FAQ */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:1rem;font-weight:600;color:var(--c-primary);line-height:1.65;
}
.faq-q:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.faq-q .ico{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(42,27,46,.2);display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);font-size:.75rem;margin-top:2px;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease);}
.faq-a-inner{padding:0 44px 24px 4px;color:var(--c-text-2);font-size:.9375rem;line-height:1.85;}

/* CTA 条 */
.cta-bar{
  background:var(--c-sub);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:32px 26px;display:flex;flex-direction:column;gap:20px;
}
@media (min-width:768px){
  .cta-bar{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 40px;}
}
.cta-bar h3{font-size:1.25rem;color:var(--c-primary);}
.cta-bar p{margin-top:8px;font-size:.9375rem;color:var(--c-text-2);}
.cta-bar .actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--c-primary);color:#CFC3D4;margin-top:0;}
.footer-top{padding:64px 0 44px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,#4A3350,#2A1B2E);}
.footer-brand span{color:#fff;font-weight:700;font-size:1.0625rem;}
.footer-about{font-size:.875rem;line-height:1.85;color:#B6A7BC;max-width:340px;}
.footer-col h4{font-size:.875rem;color:#fff;font-weight:700;letter-spacing:.04em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:.875rem;color:#B6A7BC;transition:color var(--dur) var(--ease);}
.footer-col a:hover{color:var(--c-accent);}
.footer-col .line{font-size:.875rem;color:#B6A7BC;line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;display:flex;flex-direction:column;gap:10px;
  font-size:.8125rem;color:#9C8 EA3;
  color:#9C8EA3;
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}
.footer-bottom a{color:#9C8EA3;}
.footer-bottom a:hover{color:var(--c-accent);}

/* roulang page: article */
:root{
  --ink:#2A1B2E;
  --ink-soft:#3B2740;
  --jade:#7FB2A8;
  --jade-soft:rgba(127,178,168,.14);
  --jade-deep:#3D6A62;
  --coral:#FF6A3D;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --block:#EFEBE4;
  --text:#12100F;
  --text-2:#5C5850;
  --line:rgba(18,16,15,.08);
  --line-strong:rgba(18,16,15,.16);
  --radius-card:16px;
  --radius-img:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(18,16,15,.04);
  --shadow-2:0 16px 40px -16px rgba(18,16,15,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:240ms;
  --container:1200px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--coral);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(18,16,15,.03);
}
.nav-bar{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:1.125rem;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  font-size:.9rem;flex:none;background:var(--ink);color:#fff;
}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;padding:10px 14px;border-radius:10px;
  font-size:.95rem;color:var(--text-2);transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(18,16,15,.03)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;
  background:var(--block);border:1px solid transparent;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.search-box:focus-within{border-color:var(--jade);background:#fff}
.search-box i{color:var(--text-2);font-size:.85rem}
.search-box input{border:0;background:transparent;outline:none;width:132px;font-size:.9rem}
.search-box input::placeholder{color:#8C877E}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--ink);color:var(--coral)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;padding:12px 22px;
  font-size:.95rem;font-weight:600;cursor:pointer;min-height:44px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 24px -14px rgba(255,106,61,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(255,106,61,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--jade);color:var(--jade-deep);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:.87rem;min-height:40px}
.btn-block{width:100%}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:40px 0 52px}
.article-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.3;
}
.article-hero .hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(42,27,46,.95) 0%,rgba(42,27,46,.78) 52%,rgba(42,27,46,.52) 100%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.82rem;color:rgba(255,255,255,.72)}
.breadcrumb a{transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.45}
.article-title{
  font-family:var(--font-serif);
  font-size:clamp(1.65rem,3.4vw,2.6rem);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;
  margin:18px 0 18px;max-width:920px;color:#fff;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 12px;font-size:.85rem;font-variant-numeric:tabular-nums}
.meta-chip{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.88);
}
.meta-chip i{color:var(--jade);font-size:.8rem}

/* ---------- layout ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:76px 0}}
.section-head{max-width:660px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;
  letter-spacing:.12em;color:var(--jade-deep);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--jade);display:inline-block}
.section-title{
  font-family:var(--font-serif);font-size:clamp(1.45rem,2.6vw,2rem);line-height:1.3;
  letter-spacing:-.01em;color:var(--ink);margin:12px 0 10px;
}
.section-desc{margin:0;color:var(--text-2);line-height:1.85;font-size:.96rem}

.article-main{padding-top:48px;padding-bottom:72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
}
.article-body-wrap{max-width:760px}

.article-figure{margin:0 0 28px;border-radius:var(--radius-img);overflow:hidden;background:var(--block);box-shadow:var(--shadow-1)}
.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img)}
.article-figure figcaption{text-align:center;font-size:.82rem;color:var(--text-2);padding:12px 16px 0}

/* ---------- article body ---------- */
.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-1);
}
@media (min-width:768px){.article-body{padding:44px 48px}}
.article-body p{margin:0 0 1.25em;line-height:1.95;color:var(--text)}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-family:var(--font-serif);font-size:1.4rem;line-height:1.4;color:var(--ink);
  margin:48px 0 16px;padding-left:14px;border-left:3px solid var(--jade);
}
.article-body h3{font-size:1.12rem;font-weight:600;color:var(--ink);margin:32px 0 12px}
.article-body h4{font-size:1rem;font-weight:600;color:var(--ink);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.4em 0;line-height:1.9}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;background:var(--block);
  border-left:3px solid var(--jade);border-radius:0 var(--radius-img) var(--radius-img) 0;color:var(--text-2);
}
.article-body blockquote p{margin:0;color:var(--text-2)}
.article-body img{border-radius:var(--radius-img);margin:22px auto;max-width:100%}
.article-body a{color:var(--jade-deep);border-bottom:1px solid rgba(127,178,168,.7);transition:color var(--dur) var(--ease)}
.article-body a:hover{color:var(--coral);border-bottom-color:rgba(255,106,61,.7)}
.article-body pre{
  background:var(--block);border-radius:var(--radius-sm);padding:16px 18px;overflow-x:auto;
  font-size:.88rem;line-height:1.7;margin:0 0 1.4em;
}
.article-body code{background:var(--block);border-radius:6px;padding:2px 6px;font-size:.9em}
.article-body pre code{background:none;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.93rem}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left}
.article-body th{background:var(--block);color:var(--ink);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:.82rem;color:var(--text-2);margin-top:10px}

.empty-state{text-align:center;padding:36px 12px}
.empty-state i{font-size:1.9rem;color:var(--jade)}
.empty-state h2{font-family:var(--font-serif);font-size:1.35rem;margin:14px 0 10px;border:0;padding:0}
.empty-state p{color:var(--text-2);margin:0 auto 20px;max-width:420px;line-height:1.85}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:var(--jade-soft);color:var(--jade-deep);font-size:.82rem;font-weight:500;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.tag:hover{background:var(--jade);color:#fff}
.article-foot{
  margin-top:30px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.side-card{position:sticky;top:96px}}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
}
.side-badge{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:var(--jade-soft);color:var(--jade-deep);font-size:.76rem;font-weight:600;letter-spacing:.08em;
}
.side-card h3{font-size:1.05rem;font-weight:700;color:var(--ink);margin:14px 0 10px}
.side-text{margin:0 0 16px;font-size:.9rem;color:var(--text-2);line-height:1.85}
.side-list{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:11px}
.side-list li{display:flex;gap:9px;align-items:flex-start;font-size:.9rem;color:var(--text-2);line-height:1.7}
.side-list i{color:var(--jade);font-size:.78rem;margin-top:6px;flex:none}
.side-note{margin:14px 0 0;font-size:.78rem;color:var(--text-2);line-height:1.7}
.side-links{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 4px;border-bottom:1px solid var(--line);font-size:.9rem;color:var(--text-2);
  transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.side-links a:hover{color:var(--ink);padding-left:8px}
.side-links i{color:var(--jade);font-size:.78rem}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(127,178,168,.4)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--block)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-tag{
  align-self:flex-start;padding:4px 12px;border-radius:999px;background:var(--jade-soft);
  color:var(--jade-deep);font-size:.76rem;font-weight:600;
}
.card-title{font-size:1.05rem;font-weight:600;color:var(--ink);margin:12px 0 8px;line-height:1.5}
.card-text{margin:0;font-size:.9rem;color:var(--text-2);line-height:1.8}
.card-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:.8rem;color:var(--text-2);font-variant-numeric:tabular-nums;
}
.card-meta i{transition:transform var(--dur) var(--ease)}
.card:hover .card-meta i{transform:translateX(4px)}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;padding:20px 0;display:flex;align-items:flex-start;
  justify-content:space-between;gap:18px;text-align:left;font-size:1rem;font-weight:600;
  color:var(--ink);cursor:pointer;transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--jade-deep)}
.faq-q i{color:var(--coral);font-size:.85rem;margin-top:6px;flex:none;transition:transform var(--dur) var(--ease)}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq-item.is-open .faq-a{max-height:460px}
.faq-a p{margin:0;padding:0 44px 22px 0;color:var(--text-2);line-height:1.9;font-size:.94rem}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:#fff;
  border-radius:24px;padding:36px 24px;
}
@media (min-width:768px){
  .cta-band{padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:36px}
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,61,.28),rgba(255,106,61,0) 68%);
}
.cta-band > *{position:relative;z-index:2}
.cta-title{font-family:var(--font-serif);font-size:clamp(1.35rem,2.4vw,1.85rem);margin:0 0 10px;line-height:1.35}
.cta-text{margin:0;color:rgba(255,255,255,.75);line-height:1.85;font-size:.95rem;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
@media (min-width:768px){.cta-actions{margin-top:0;flex:none}}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:56px 0 0;margin-top:8px}
.footer-top{padding-bottom:8px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.05rem;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-about{margin:0;font-size:.9rem;line-height:1.85;color:rgba(255,255,255,.68)}
.footer-col h4{font-size:.92rem;font-weight:700;color:#fff;margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{font-size:.9rem;color:rgba(255,255,255,.72);transition:color var(--dur) var(--ease)}
.footer-col a:hover{color:var(--coral)}
.footer-col .line{margin:0;font-size:.88rem;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:.82rem;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.82);transition:color var(--dur) var(--ease)}
.footer-bottom a:hover{color:var(--coral)}

/* ---------- responsive nav ---------- */
@media (max-width:900px){
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    gap:2px;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 22px;
    box-shadow:var(--shadow-2);
  }
  .site-header.nav-open .nav-links{display:flex}
  .nav-link{padding:14px 12px;font-size:1rem}
  .nav-link::after{display:none}
  .nav-link.is-active{background:var(--jade-soft)}
}
@media (max-width:520px){
  .article-title{font-size:1.5rem}
  .meta-chip{padding:5px 11px;font-size:.8rem}
  .btn{padding:11px 18px;font-size:.9rem}
  .cta-band{padding:30px 20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --plum:#2A1B2E;
  --plum-soft:#3B2741;
  --mist:#7FB2A8;
  --mist-ink:#3F7A6E;
  --coral:#FF6A3D;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --block:#EFEBE4;
  --ink:#12100F;
  --muted:#5C5850;
  --line:rgba(18,16,15,.08);
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(18,16,15,.04);
  --shadow-2:0 16px 40px -16px rgba(18,16,15,.18);
  --dur:240ms;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;cursor:pointer}
input{font:inherit}
::selection{background:rgba(255,106,61,.22)}
:focus-visible{outline:2px solid var(--coral);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(18,16,15,.04)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:1.125rem;font-weight:700;letter-spacing:-.01em;color:var(--plum);flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--plum);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:.92rem;flex-shrink:0}
.nav-links{display:none;align-items:center;gap:28px;margin-left:10px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-link{position:relative;padding:6px 2px;font-size:.95rem;color:var(--muted);transition:color var(--dur) var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--plum);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--plum);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:none;align-items:center;gap:8px;height:40px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:var(--bg);transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
@media(min-width:768px){.search-box{display:flex}}
.search-box:focus-within{border-color:var(--mist);box-shadow:0 0 0 3px rgba(127,178,168,.22)}
.search-box input{border:0;background:transparent;outline:none;font-size:.9rem;width:148px;color:var(--ink)}
.search-box i{color:var(--muted);font-size:.84rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;border:1px solid transparent;font-weight:600;white-space:nowrap;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.btn-sm{height:40px;padding:0 18px;font-size:.9rem}
.btn-lg{height:50px;padding:0 28px;font-size:1rem}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 22px -14px rgba(255,106,61,.95)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(255,106,61,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost:hover{background:#fff;color:var(--plum);transform:translateY(-2px)}
.btn-outline{border-color:rgba(42,27,46,.24);color:var(--plum);background:transparent}
.btn-outline:hover{border-color:var(--plum);background:var(--plum);color:#fff;transform:translateY(-2px)}
.menu-toggle{display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--plum)}
@media(min-width:1024px){.menu-toggle{display:none}}
.nav-drawer{display:none;border-top:1px solid var(--line);background:#fff}
.nav-drawer.open{display:block}
.nav-drawer-inner{display:flex;flex-direction:column;padding-top:6px;padding-bottom:18px}
.drawer-link{padding:13px 2px;border-bottom:1px solid var(--line);color:var(--muted);font-size:.98rem}
.drawer-link.is-active{color:var(--plum);font-weight:600}
.drawer-cta{margin-top:16px}

/* ============ hero ============ */
.page-hero{position:relative;overflow:hidden;background:var(--plum)}
.page-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.4}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(112deg,rgba(42,27,46,.95) 0%,rgba(42,27,46,.66) 52%,rgba(42,27,46,.9) 100%)}
.page-hero-inner{position:relative;z-index:2;padding-top:64px;padding-bottom:104px;color:#fff}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:.82rem;color:rgba(255,255,255,.7);margin:0 0 22px;list-style:none;padding:0}
.breadcrumb a{transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:var(--coral)}
.breadcrumb li{display:flex;align-items:center;gap:10px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(127,178,168,.22);color:#DCEFE9;font-size:.78rem;letter-spacing:.1em;margin-bottom:20px}
.page-hero h1{
  font-family:"Noto Serif SC","Songti SC","SimSun",serif;
  font-size:clamp(1.95rem,4.4vw,3.35rem);
  line-height:1.16;
  letter-spacing:-.02em;
  font-weight:700;
  margin:0 0 20px;
  max-width:820px;
}
.page-hero .hero-sub{font-size:1.04rem;line-height:1.85;color:rgba(255,255,255,.86);max-width:660px;margin:0 0 26px}
.hero-meta{list-style:none;display:flex;flex-wrap:wrap;gap:12px 28px;margin:0;padding:0;font-size:.875rem;color:rgba(255,255,255,.78)}
.hero-meta li{display:flex;align-items:center;gap:9px}
.hero-meta i{color:var(--mist)}
.page-hero-inner > *{animation:rise .6s var(--ease) both}
.page-hero-inner > *:nth-child(2){animation-delay:.06s}
.page-hero-inner > *:nth-child(3){animation-delay:.12s}
.page-hero-inner > *:nth-child(4){animation-delay:.18s}
.page-hero-inner > *:nth-child(5){animation-delay:.24s}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* ============ quick bar ============ */
.quick{position:relative;z-index:6;margin-top:-56px}
.quick-bar{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-2)}
@media(min-width:640px){.quick-bar{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.quick-bar{grid-template-columns:repeat(4,1fr)}}
.quick-item{background:var(--card);padding:24px 22px;transition:background-color var(--dur) var(--ease)}
.quick-item:hover{background:#FFFBF7}
.quick-num{font-variant-numeric:tabular-nums;font-size:.82rem;font-weight:700;letter-spacing:.14em;color:var(--coral)}
.quick-item h3{margin:8px 0 6px;font-size:1.02rem;font-weight:600;color:var(--plum)}
.quick-item p{margin:0;font-size:.875rem;line-height:1.7;color:var(--muted)}

/* ============ sections ============ */
.section{padding:96px 0}
.section-alt{background:var(--block)}
.section-head{max-width:780px;margin:0 0 44px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.16em;color:var(--mist-ink);margin-bottom:12px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.28;letter-spacing:-.02em;font-weight:700;color:var(--plum);margin:0 0 14px}
.section-head p{margin:0;font-size:1rem;color:var(--muted)}
@media(max-width:1023px){.section{padding:72px 0}}
@media(max-width:767px){.section{padding:52px 0}.section-head{margin-bottom:32px}}

/* editorial rows */
.rows{display:block;border-bottom:1px solid var(--line)}
.row-item{display:grid;grid-template-columns:1fr;gap:22px;padding:36px 0;border-top:1px solid var(--line);align-items:center}
.row-figure{margin:0;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-1);background:var(--block)}
.row-figure img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.row-item:hover .row-figure img{transform:scale(1.035)}
.row-index{display:block;font-variant-numeric:tabular-nums;font-size:.78rem;font-weight:700;letter-spacing:.16em;color:var(--mist-ink)}
.row-text h3{margin:10px 0 12px;font-size:1.125rem;font-weight:600;color:var(--plum);letter-spacing:-.01em}
.row-text p{margin:0 0 12px;color:var(--muted);font-size:.96rem;line-height:1.88}
.row-text p:last-of-type{margin-bottom:16px}
@media(min-width:900px){
  .row-item{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:52px;padding:44px 0}
  .row-item.reverse .row-figure{order:2}
}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:.9rem;font-weight:600;color:var(--plum);transition:color var(--dur) var(--ease)}
.link-arrow i{transition:transform var(--dur) var(--ease);font-size:.8rem}
.link-arrow:hover{color:var(--coral)}
.link-arrow:hover i{transform:translateX(4px)}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:1fr;gap:26px;margin:0;padding:0}
.step{position:relative;padding-top:28px}
.step::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:rgba(18,16,15,.14)}
.step::after{content:"";position:absolute;top:-5px;left:0;width:10px;height:10px;border-radius:50%;background:var(--mist);transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease)}
.step:hover::after{background:var(--coral);transform:scale(1.6)}
.step-num{display:block;font-variant-numeric:tabular-nums;font-size:.78rem;font-weight:700;letter-spacing:.16em;color:var(--mist-ink);margin-bottom:8px}
.step h3{margin:0 0 8px;font-size:1.04rem;font-weight:600;color:var(--plum)}
.step p{margin:0;font-size:.9rem;color:var(--muted);line-height:1.8}
@media(min-width:768px){.steps{grid-template-columns:1fr 1fr;gap:32px}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:0}.step{padding-right:30px}}

/* flag list */
.flag-wrap{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.flag-wrap{grid-template-columns:minmax(0,4fr) minmax(0,7.5fr);gap:64px;align-items:start}}
.flag-intro p{margin:0 0 18px;color:var(--muted);font-size:.96rem}
.flag-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.flag-list li{display:flex;gap:16px;align-items:flex-start;padding:18px 4px;border-bottom:1px solid var(--line);transition:background-color var(--dur) var(--ease)}
.flag-list li:hover{background:rgba(255,255,255,.6)}
.flag-list i{margin-top:6px;color:var(--coral);font-size:.9rem;flex-shrink:0}
.flag-list strong{display:block;font-weight:600;color:var(--plum);font-size:1rem;margin-bottom:3px}
.flag-list span{display:block;color:var(--muted);font-size:.9rem;line-height:1.78}

/* faq */
.faq-list{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;background:none;border:0;text-align:left;font-size:1.02rem;font-weight:600;color:var(--plum);transition:color var(--dur) var(--ease)}
.faq-q:hover{color:var(--coral)}
.faq-icon{flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid rgba(42,27,46,.22);display:inline-flex;align-items:center;justify-content:center;font-size:.68rem;color:var(--plum);transition:transform .28s var(--ease),background-color .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease)}
.faq-item.open .faq-icon{background:var(--plum);border-color:var(--plum);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{margin:0 0 22px;padding-right:46px;color:var(--muted);font-size:.95rem;line-height:1.9}

/* cta */
.cta-section{padding:0 0 96px}
.cta-band{position:relative;overflow:hidden;background:var(--plum);color:#fff;border-radius:20px;padding:44px 28px;display:grid;grid-template-columns:1fr;gap:26px}
.cta-band::before{content:"";position:absolute;right:-90px;top:-100px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,106,61,.34),transparent 70%)}
.cta-band h2{position:relative;margin:0 0 12px;font-size:clamp(1.45rem,2.6vw,2.05rem);line-height:1.3;letter-spacing:-.02em}
.cta-band p{position:relative;margin:0;color:rgba(255,255,255,.82);font-size:.97rem;max-width:640px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px}
@media(min-width:900px){
  .cta-band{grid-template-columns:minmax(0,7fr) minmax(0,4fr);align-items:center;padding:54px 56px}
  .cta-actions{justify-content:flex-end}
}

/* related */
.related{padding:0 0 96px}
.related-inner{border-top:1px solid var(--line);padding-top:32px;display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center}
.related-title{font-size:.95rem;font-weight:600;color:var(--plum);margin:0}
.related-links{list-style:none;display:flex;flex-wrap:wrap;gap:12px;margin:0;padding:0}
.related-links a{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;border:1px solid rgba(42,27,46,.16);font-size:.9rem;color:var(--plum);transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease)}
.related-links a:hover{border-color:var(--coral);color:var(--coral);transform:translateY(-2px)}

/* footer */
.site-footer{background:var(--plum);color:rgba(255,255,255,.76);padding:64px 0 28px}
.footer-top{border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:36px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:1.125rem;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-about{margin:0;font-size:.9rem;line-height:1.85;color:rgba(255,255,255,.72)}
.footer-col h4{margin:0 0 14px;font-size:.95rem;font-weight:600;color:#fff}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:.9rem;color:rgba(255,255,255,.72);transition:color var(--dur) var(--ease)}
.footer-col a:hover{color:var(--coral)}
.footer-col .line{margin:0;font-size:.88rem;line-height:1.8;color:rgba(255,255,255,.7)}
.footer-bottom{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:.83rem;color:rgba(255,255,255,.6)}
.footer-bottom a{color:rgba(255,255,255,.76);transition:color var(--dur) var(--ease)}
.footer-bottom a:hover{color:var(--coral)}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand:#2A1B2E;
  --brand-soft:#3C2A40;
  --accent:#FF6A3D;
  --accent2:#7FB2A8;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --muted:#EFEBE4;
  --text:#12100F;
  --text-2:#5C5850;
  --line:rgba(18,16,15,.08);
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(18,16,15,.04);
  --shadow-2:0 16px 40px -16px rgba(18,16,15,.18);
  --dur:240ms;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(18,16,15,.04);
}
.header-inner{display:flex;align-items:center;gap:32px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:15px;flex-shrink:0;
}
.brand-text{font-size:1.05rem;font-weight:800;letter-spacing:-.01em;color:var(--brand);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:.94rem;font-weight:600;color:var(--text-2);
  padding:6px 0;transition:color var(--dur) var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);border-radius:2px;transition:width var(--dur) var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{width:100%}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;background:var(--muted);
  border:1px solid transparent;border-radius:var(--radius-pill);
  padding:0 14px;height:42px;transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-search:focus-within{border-color:var(--accent2);background:#fff;box-shadow:0 0 0 3px rgba(127,178,168,.18)}
.nav-search i{color:var(--text-2);font-size:.85rem}
.nav-search input{border:0;background:transparent;outline:none;width:150px;font-size:.9rem}
.nav-search input::placeholder{color:#8C877E}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);align-items:center;justify-content:center;cursor:pointer;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.burger:hover{background:var(--muted)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);font-weight:600;font-size:.94rem;
  padding:12px 24px;border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),
             color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             border-color var(--dur) var(--ease);
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,106,61,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(255,106,61,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-outline-light:hover{background:#fff;color:var(--brand);transform:translateY(-2px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;
  font-size:.94rem;border:0;background:none;padding:0;cursor:pointer;border-radius:8px;
}
.btn-link i{transition:transform var(--dur) var(--ease)}
.btn-link:hover i{transform:translateX(4px)}
.btn-link:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.nav-cta{padding:10px 20px;font-size:.9rem}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,16,15,.42);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur);
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:80;padding:22px;display:flex;flex-direction:column;gap:4px;
  transform:translateX(105%);transition:transform var(--dur) var(--ease);
  box-shadow:-20px 0 50px -30px rgba(18,16,15,.5);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--brand);cursor:pointer;display:grid;place-items:center;
}
.d-link{
  padding:14px 12px;border-radius:12px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.d-link:hover{background:var(--muted);color:var(--brand)}
.d-link.is-active{color:var(--brand);background:rgba(127,178,168,.12)}
.d-cta{margin-top:18px}

/* ---------- hero ---------- */
.page-hero{padding:72px 0 56px;border-bottom:1px solid var(--line);background:
  radial-gradient(900px 380px at 88% -10%,rgba(127,178,168,.18),transparent 70%),
  radial-gradient(700px 320px at 5% 110%,rgba(255,106,61,.10),transparent 72%);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--text-2);margin-bottom:24px;flex-wrap:wrap}
.crumb a{transition:color var(--dur) var(--ease)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:rgba(18,16,15,.25)}
.hero-title{
  font-family:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  font-size:clamp(2rem,4.6vw,3.4rem);line-height:1.16;font-weight:700;
  letter-spacing:-.02em;color:var(--brand);max-width:920px;
}
.hero-sub{margin-top:22px;font-size:1.04rem;color:var(--text-2);max-width:760px;line-height:1.92}
.hero-meta{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px 12px}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-pill);padding:8px 16px;font-size:.86rem;color:var(--text-2);
  box-shadow:var(--shadow-1);
}
.meta-chip i{color:var(--accent2);font-size:.8rem}
.meta-chip strong{color:var(--brand);font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section-alt{background:var(--muted)}
.section-head{max-width:760px;margin-bottom:36px}
.section-title{
  font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:700;letter-spacing:-.015em;
  color:var(--brand);line-height:1.32;
}
.section-desc{margin-top:14px;color:var(--text-2);line-height:1.92;font-size:.97rem}

/* ---------- index list ---------- */
.idx-list{border-top:1px solid var(--line);background:transparent}
.idx-row{
  display:grid;grid-template-columns:60px minmax(0,1fr) auto;gap:24px;align-items:center;
  padding:22px 8px;border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease),padding var(--dur) var(--ease);
}
.idx-row:hover{background:#fff;padding-left:18px;padding-right:18px;box-shadow:var(--shadow-1)}
.idx-row:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.idx-num{
  font-size:1.4rem;font-weight:700;color:var(--brand);opacity:.4;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
  transition:opacity var(--dur) var(--ease),color var(--dur) var(--ease);
}
.idx-row:hover .idx-num{opacity:1;color:var(--accent)}
.idx-title{font-size:1.04rem;font-weight:600;color:var(--text);line-height:1.6}
.idx-desc{margin-top:6px;font-size:.9rem;color:var(--text-2);line-height:1.8}
.idx-side{display:flex;align-items:center;gap:14px}
.tag{
  display:inline-flex;align-items:center;background:rgba(127,178,168,.16);color:#2F6B60;
  border-radius:var(--radius-pill);padding:5px 12px;font-size:.78rem;font-weight:600;white-space:nowrap;
}
.idx-arrow{
  color:var(--text-2);font-size:.85rem;opacity:.5;
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.idx-row:hover .idx-arrow{transform:translateX(5px);color:var(--accent);opacity:1}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.prose p{color:var(--text-2);line-height:1.95;margin-bottom:16px;font-size:.97rem}
.prose strong{color:var(--brand);font-weight:700}
.checks li{position:relative;padding-left:26px;color:var(--text-2);font-size:.94rem;line-height:1.9;margin-bottom:12px}
.checks li:last-child{margin-bottom:0}
.checks li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:5px;color:var(--accent2);font-size:.78rem;
}
.stat-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
}
.stat{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  padding:16px 0;border-bottom:1px dashed var(--line);
}
.stat:first-child{padding-top:0}
.stat:last-child{border-bottom:0;padding-bottom:0}
.stat-label{font-size:.88rem;color:var(--text-2)}
.stat-value{font-size:1.15rem;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;text-align:left;font-size:1.02rem;
  font-weight:600;color:var(--text);cursor:pointer;transition:color var(--dur) var(--ease);
  border-radius:8px;
}
.faq-q:hover{color:var(--brand)}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.faq-sign{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand);font-size:.8rem;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),
             color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.faq-item.is-open .faq-sign{transform:rotate(45deg);background:var(--brand);color:#fff;border-color:var(--brand)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--dur) var(--ease)}
.faq-a>div{overflow:hidden}
.faq-a p{padding:0 0 24px;color:var(--text-2);line-height:1.96;max-width:840px;font-size:.96rem}
.faq-item.is-open .faq-a{grid-template-rows:1fr}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--brand);border-radius:24px;padding:46px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,61,.30),transparent 68%);
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:700;line-height:1.38;position:relative}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.72);font-size:.95rem;line-height:1.9;max-width:580px;position:relative}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative}

/* ---------- footer ---------- */
.site-footer{background:var(--brand);color:#EDE7E9;padding:64px 0 0;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:1.02rem;font-weight:800;letter-spacing:-.01em}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-about{margin-top:16px;color:rgba(255,255,255,.62);line-height:1.92;font-size:.9rem;max-width:360px}
.footer-col h4{font-size:.95rem;font-weight:700;margin-bottom:18px;color:#fff}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.68);font-size:.9rem;transition:color var(--dur) var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-col .line{font-size:.875rem;color:rgba(255,255,255,.6);line-height:1.85}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:.82rem;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72);transition:color var(--dur) var(--ease)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- motion ---------- */
@keyframes riseIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.rise{animation:riseIn .62s var(--ease) both}
.rise-1{animation-delay:.06s}
.rise-2{animation-delay:.14s}
.rise-3{animation-delay:.22s}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .split{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media(max-width:768px){
  .nav-links{display:none}
  .nav-search{display:none}
  .burger{display:flex}
  .header-inner{gap:14px;height:64px}
  .brand-text{font-size:.98rem}
  .nav-cta{padding:9px 15px;font-size:.84rem}
  .page-hero{padding:52px 0 42px}
  .section{padding:52px 0}
  .idx-row{grid-template-columns:46px minmax(0,1fr);gap:16px;padding:18px 4px}
  .idx-row:hover{padding-left:8px;padding-right:8px}
  .idx-side{grid-column:2;justify-content:flex-start;margin-top:10px}
  .cta-band{padding:32px 24px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .site-footer{margin-top:52px}
}
@media(max-width:520px){
  .hero-title{font-size:1.72rem}
  .hero-sub{font-size:.96rem}
  .idx-num{font-size:1.15rem}
  .meta-chip{font-size:.8rem;padding:7px 13px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}