/* roulang page: index */
:root {
  --color-primary: #F05A00;
  --color-primary-dark: #D94D00;
  --color-secondary: #1B1B20;
  --color-accent: #C6E100;
  --color-bg: #FAF7F2;
  --color-surface: #FFFFFF;
  --color-border: #E7E0D8;
  --color-text: #2D2D31;
  --color-sub: #76767D;
  --color-on-dark: #F5F4F2;
  --color-on-dark-sub: #A2A2A8;
  --radius-card: 16px;
  --radius-input: 10px;
  --radius-btn: 999px;
  --shadow-card: 0 2px 10px rgba(27,27,31,0.06);
  --shadow-hover: 0 12px 28px rgba(27,27,31,0.12);
  --font-cn: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num: "Roboto Mono","SF Mono",monospace;
  --space-section: clamp(4rem,8vw,6.5rem);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.7;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease,transform .25s ease}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.row{max-width:1200px}
.section{padding:var(--space-section) 0}
.section-dark{background:var(--color-secondary);color:var(--color-on-dark)}

.section-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:2.5rem}
.section-head .bar{width:4px;height:20px;background:var(--color-primary);border-radius:2px;flex-shrink:0;margin-top:8px}
.section-head h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;line-height:1.3;letter-spacing:-.02em}
.section-head .sub{margin-left:auto;font-size:.9rem;color:var(--color-sub);white-space:nowrap}
.section-intro{max-width:68ch;color:var(--color-sub);font-size:1rem;margin:-1rem 0 2rem;line-height:1.7}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:.95rem;border-radius:var(--radius-btn);padding:12px 28px;cursor:pointer;border:1px solid transparent;transition:background .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease,outline .15s ease;white-space:nowrap}
.btn:focus-visible{outline:3px solid rgba(240,90,0,.3);outline-offset:2px}
.btn-primary{background:var(--color-primary);color:#fff}
.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(240,90,0,.25)}
.btn-secondary{border:1px solid var(--color-border);color:var(--color-text);background:transparent}
.btn-secondary:hover{border-color:var(--color-primary);color:var(--color-primary);background:rgba(240,90,0,.06)}
.btn-dark{background:var(--color-secondary);color:#fff;border:none}
.btn-dark:hover{background:#2f2f36;transform:translateY(-2px)}
.btn-light{background:var(--color-accent);color:var(--color-secondary)}
.btn-light:hover{background:#d9f213;transform:translateY(-2px)}
.btn-block{width:100%}

.badge{display:inline-flex;align-items:center;gap:6px;background:#EFE9E2;color:var(--color-text);font-size:.8rem;border-radius:999px;padding:4px 14px;font-weight:500;transition:background .25s,color .25s}
.badge:hover{background:var(--color-primary);color:#fff}
.badge-accent{background:rgba(198,225,0,.18);color:var(--color-secondary)}
.badge-orange{background:rgba(240,90,0,.1);color:var(--color-primary)}

@media screen and (max-width:640px){
  .section-head{flex-wrap:wrap;gap:10px;margin-bottom:1.6rem}
  .section-head .sub{white-space:normal;width:100%;margin-left:20px;font-size:.85rem}
}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  background:rgba(250,247,242,.95);
  border-bottom:1px solid transparent;
  transition:background .35s ease,box-shadow .35s ease,border-color .35s ease;
  backdrop-filter:blur(6px);
}
.site-header.scrolled{
  background:rgba(250,247,242,.92);
  border-bottom-color:var(--color-border);
  box-shadow:0 2px 16px rgba(27,27,31,.05);
}
.header-inner{display:flex;align-items:center;gap:28px;padding:16px 24px;max-width:1200px;margin:0 auto}
.brand-logo{display:flex;align-items:center;gap:10px;font-size:1.45rem;font-weight:800;letter-spacing:-.02em;color:var(--color-secondary)}
.brand-logo i{color:var(--color-primary);font-size:1.2rem}
.brand-logo:hover{color:var(--color-primary)}
.main-nav{flex:1}
.main-nav ul{display:flex;gap:28px;align-items:center;justify-content:center}
.main-nav a{font-size:.96rem;font-weight:500;color:var(--color-sub);position:relative;padding:6px 0}
.main-nav a::after{content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--color-primary);transition:width .25s ease}
.main-nav a:hover,.main-nav a.active{color:var(--color-primary)}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.header-cta{margin-left:auto;flex-shrink:0}
.nav-toggle{display:none;background:none;border:none;font-size:1.4rem;color:var(--color-text);cursor:pointer;padding:6px 10px}

@media screen and (max-width:1024px){
  .header-inner{gap:16px;padding:14px 20px}
  .main-nav ul{gap:18px}
}
@media screen and (max-width:860px){
  .header-cta{padding-left:14px;padding-right:14px;font-size:.85rem}
  .nav-toggle{display:inline-block}
  .main-nav{
    position:fixed;top:60px;left:0;right:0;background:var(--color-bg);
    border-bottom:1px solid var(--color-border);
    box-shadow:0 12px 24px rgba(27,27,31,.08);
    display:none;padding:12px 20px 20px;z-index:999;
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:4px;align-items:stretch}
  .main-nav a{display:block;padding:12px 8px;border-bottom:1px solid var(--color-border);font-size:1rem}
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--color-primary);background:rgba(240,90,0,.05);border-radius:8px}
}

/* ===== Hero / Coupon Wall ===== */
.hero{
  position:relative;
  padding-top:150px;
  padding-bottom:90px;
  background-color:var(--color-bg);
  background-image:url('/assets/images/backpic/back-1.jpg');
  background-size:cover;
  background-position:center;
  min-height:720px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;inset:0;
  background:rgba(250,247,242,.92);
}
.hero-inner{position:relative;z-index:2}
.hero-copy{position:relative;z-index:2}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--color-secondary);color:var(--color-accent);border-radius:999px;padding:7px 18px;font-size:.85rem;margin-bottom:24px;font-weight:500}
.hero-eyebrow i{color:var(--color-accent)}
.hero h1{font-size:clamp(2rem,4.8vw,3.5rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;color:var(--color-secondary);margin-bottom:24px;max-width:20ch}
.hero h1 span{color:var(--color-primary)}
.hero-desc{font-size:1.05rem;color:var(--color-sub);max-width:58ch;line-height:1.8;margin-bottom:32px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:10px}
.hero-stat .num{font-family:var(--font-num);font-size:2rem;font-weight:700;color:var(--color-primary);line-height:1.1}
.hero-stat .label{font-size:.85rem;color:var(--color-sub);margin-top:2px}

/* Countdown strip */
.countdown-strip{
  position:relative;z-index:2;
  background:var(--color-secondary);
  color:var(--color-on-dark);
  padding:16px 24px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;
  margin-bottom:36px;
  box-shadow:0 10px 30px rgba(27,27,31,.15);
}
.countdown-strip .cd-label{display:flex;align-items:center;gap:10px;font-weight:600;font-size:.95rem}
.countdown-strip .cd-label i{color:var(--color-accent)}
.countdown-digits{font-family:var(--font-num);display:flex;align-items:center;gap:4px;font-size:1.15rem;font-weight:700}
.countdown-digits span{background:#2e2e35;border-radius:8px;padding:6px 10px;color:var(--color-accent);min-width:44px;text-align:center}
.countdown-digits .unit{font-size:.75rem;color:var(--color-on-dark-sub);margin:0 4px}
.countdown-strip .cd-stock{font-size:.85rem;color:var(--color-on-dark-sub)}
.countdown-strip .cd-stock b{color:var(--color-primary);font-family:var(--font-num)}

/* Coupon wall */
.coupon-wall{position:relative;z-index:2;display:flex;flex-direction:column;gap:18px}
.coupon-main{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:20px;
  padding:28px 28px 24px;
  position:relative;
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease;
}
.coupon-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.coupon-ribbon{
  position:absolute;top:-14px;right:20px;
  background:var(--color-primary);color:#fff;
  padding:6px 16px;border-radius:999px;
  font-size:.78rem;font-weight:700;letter-spacing:.04em;
  box-shadow:0 4px 12px rgba(240,90,0,.3);
}
.coupon-main .coupon-type{font-size:.8rem;color:var(--color-primary);font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.coupon-main h3{font-size:1.35rem;font-weight:800;color:var(--color-text);margin:10px 0 6px}
.coupon-main p{font-size:.9rem;color:var(--color-sub);line-height:1.6}
.coupon-divider{position:relative;margin:18px 0;border-top:2px dashed var(--color-border)}
.coupon-divider::before,.coupon-divider::after{
  content:'';position:absolute;top:-12px;width:22px;height:22px;border-radius:50%;
  background:var(--color-bg);border:1px solid var(--color-border);
}
.coupon-divider::before{left:-38px}
.coupon-divider::after{right:-38px}
.coupon-main .coupon-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.coupon-price{display:flex;align-items:baseline;gap:8px}
.coupon-price .price-old{font-size:.9rem;color:var(--color-sub);text-decoration:line-through;font-family:var(--font-num)}
.coupon-price .price-now{font-size:1.6rem;font-weight:800;color:var(--color-primary);font-family:var(--font-num)}
.coupon-price .per{font-size:.85rem;color:var(--color-sub)}
.coupon-stock{font-size:.8rem;color:var(--color-sub)}
.coupon-stock i{color:var(--color-primary)}
.coupon-stock b{color:var(--color-primary);font-family:var(--font-num)}
.coupon-small{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:14px;
  padding:16px 20px;
  display:grid;
  grid-template-columns:1fr auto;
  gap:8px 16px;
  align-items:center;
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.coupon-small:hover{border-color:var(--color-primary);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.coupon-small .cs-icon{grid-row:span 2;width:38px;height:38px;border-radius:10px;background:rgba(240,90,0,.08);color:var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:1.1rem;align-self:center}
.coupon-small h4{font-size:.95rem;font-weight:700}
.coupon-small p{font-size:.78rem;color:var(--color-sub)}
.coupon-small .btn{padding:8px 16px;font-size:.82rem}

@media screen and (max-width:1024px){
  .hero{padding-top:120px;padding-bottom:70px}
  .coupon-wall{margin-top:40px}
  .coupon-divider::before{left:-28px}
  .coupon-divider::after{right:-28px}
}
@media screen and (max-width:640px){
  .hero{padding-top:110px;padding-bottom:50px}
  .countdown-strip{padding:14px;flex-direction:column;align-items:flex-start}
  .coupon-main{padding:22px 20px}
  .coupon-divider::before{left:-20px}
  .coupon-divider::after{right:-20px}
  .coupon-price .price-now{font-size:1.3rem}
}

/* ===== Flash Sale Track ===== */
.flash-track-wrap{
  position:relative;z-index:3;
  margin-top:-34px;
}
.flash-track{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:20px;
  padding:26px 28px;
  box-shadow:var(--shadow-card);
}
.flash-track-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.flash-track-header h3{font-size:1.15rem;font-weight:800;display:flex;align-items:center;gap:8px}
.flash-track-header h3 i{color:var(--color-primary)}
.flash-link{font-size:.85rem;color:var(--color-primary);font-weight:500}
.flash-track-row{display:flex;gap:16px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}
.flash-track-row::-webkit-scrollbar{height:6px}
.flash-track-row::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}
.flash-item{
  flex:0 0 240px;
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:14px;
  padding:18px;
  transition:border-color .25s,box-shadow .25s,transform .25s;
}
.flash-item:hover{border-color:var(--color-primary);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.flash-item .fi-tag{font-size:.72rem;font-weight:700;color:var(--color-primary);background:rgba(240,90,0,.08);border-radius:999px;padding:3px 10px;display:inline-block}
.flash-item h4{font-size:1rem;font-weight:700;margin:12px 0 6px}
.flash-item p{font-size:.8rem;color:var(--color-sub);line-height:1.5;min-height:38px}
.flash-item .fi-stock{margin-top:12px}
.flash-item .stock-bar{height:5px;background:#e8e2da;border-radius:3px;overflow:hidden;margin-bottom:6px}
.flash-item .stock-bar span{display:block;height:100%;background:var(--color-accent);border-radius:3px}
.flash-item .fi-footer{display:flex;align-items:center;justify-content:space-between;margin-top:8px}
.flash-item .fi-stock-text{font-size:.75rem;color:var(--color-sub)}
.flash-item .fi-stock-text b{font-family:var(--font-num);color:var(--color-primary)}
.flash-item .btn{padding:7px 16px;font-size:.8rem}

@media screen and (max-width:640px){
  .flash-track-wrap{margin-top:0}
  .flash-track{padding:20px 16px}
  .flash-item{flex:0 0 210px}
  .flash-track-row{overflow-x:auto;padding-bottom:10px}
}

/* ===== Product Stage ===== */
.stage-section{background:var(--color-bg)}
.stage-tabs{display:flex;gap:0;border-bottom:1px solid var(--color-border);margin-bottom:28px;flex-wrap:wrap}
.stage-tabs li{margin-bottom:-1px}
.stage-tabs a{
  display:inline-block;padding:12px 24px;font-weight:600;font-size:.95rem;color:var(--color-sub);
  border-bottom:3px solid transparent;transition:color .25s,border-color .25s;
}
.stage-tabs a:hover{color:var(--color-primary)}
.stage-tabs li.is-active a{color:var(--color-primary);border-bottom-color:var(--color-primary)}
.stage-panel{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:start}
.stage-shot{
  position:relative;border-radius:16px;overflow:hidden;background:#EFE9E2;
  border:1px solid var(--color-border);box-shadow:var(--shadow-card);
}
.stage-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
.stage-shot-tag{
  position:absolute;left:16px;bottom:16px;background:var(--color-secondary);color:var(--color-accent);
  padding:6px 14px;border-radius:999px;font-size:.78rem;font-weight:500;
}
.stage-info h3{font-size:1.3rem;font-weight:800;margin-bottom:14px;color:var(--color-text)}
.stage-info ul li{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--color-border);font-size:.95rem;color:var(--color-text)}
.stage-info ul li:last-child{border-bottom:none}
.stage-info ul li i{color:var(--color-primary);margin-top:4px;font-size:.9rem}
.stage-info ul li .point{color:var(--color-sub)}

@media screen and (max-width:860px){
  .stage-panel{grid-template-columns:1fr;gap:24px}
  .stage-tabs a{padding:10px 16px;font-size:.85rem}
  .stage-shot img{aspect-ratio:16/10}
}

/* ===== Steps ===== */
.steps-wrap{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.step-card{
  background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);
  padding:32px 26px;position:relative;box-shadow:var(--shadow-card);
  transition:border-color .25s,box-shadow .25s,transform .25s;
}
.step-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.step-num{font-family:var(--font-num);font-size:.9rem;color:var(--color-primary);font-weight:700;letter-spacing:.06em}
.step-card .step-icon{width:52px;height:52px;border-radius:14px;background:rgba(240,90,0,.08);color:var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:1.35rem;margin:18px 0;transition:background .25s,color .25s}
.step-card:hover .step-icon{background:var(--color-primary);color:#fff}
.step-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px}
.step-card p{font-size:.9rem;color:var(--color-sub);line-height:1.7}

@media screen and (max-width:860px){
  .steps-wrap{grid-template-columns:1fr;gap:16px}
  .step-card{padding:24px}
}

/* ===== Review Wall ===== */
.reviews-section{background:var(--color-surface);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}
.review-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
}
.review-card{
  background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-card);
  padding:28px;position:relative;transition:box-shadow .25s,border-color .25s,transform .25s;
}
.review-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.review-card .quote{font-size:1.1rem;color:var(--color-primary);margin-bottom:12px;opacity:.6}
.review-card p{font-size:.95rem;color:var(--color-text);line-height:1.8;margin-bottom:18px}
.review-user{display:flex;align-items:center;gap:12px}
.review-avatar{
  width:40px;height:40px;border-radius:50%;background:var(--color-secondary);color:var(--color-accent);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;
}
.review-user .name{font-size:.9rem;font-weight:700}
.review-user .role{font-size:.78rem;color:var(--color-sub)}

@media screen and (max-width:860px){
  .review-grid{grid-template-columns:1fr;gap:16px}
}

/* ===== News ===== */
.news-wrap{
  display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:start;
}
.news-list article{
  display:flex;align-items:baseline;gap:16px;padding:16px 0;border-bottom:1px solid var(--color-border);
  transition:padding-left .25s;
}
.news-list article:hover{padding-left:10px}
.news-list .news-date{font-family:var(--font-num);font-size:.78rem;color:var(--color-sub);flex-shrink:0;white-space:nowrap}
.news-list h3{font-size:1.02rem;font-weight:600;line-height:1.5}
.news-list h3 a{color:var(--color-text)}
.news-list h3 a:hover{color:var(--color-primary)}
.news-more{margin-top:24px}
.news-sidebar{display:flex;flex-direction:column;gap:20px}
.sidebar-card{
  background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
}
.sidebar-card h4{font-size:.95rem;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.sidebar-card h4 i{color:var(--color-primary)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.changelog li{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--color-border);font-size:.85rem}
.changelog li:last-child{border-bottom:none}
.changelog .ver{font-family:var(--font-num);color:var(--color-primary);font-weight:700;font-size:.8rem}
.changelog .date{font-family:var(--font-num);color:var(--color-sub);font-size:.75rem;margin-left:auto}
.hot-rank li{display:flex;align-items:center;gap:10px;padding:8px 0;font-size:.9rem}
.hot-rank .rank-num{font-family:var(--font-num);font-weight:800;color:var(--color-sub);width:20px;text-align:center}
.hot-rank li:nth-child(1) .rank-num{color:var(--color-primary)}
.hot-rank li:nth-child(2) .rank-num{color:var(--color-primary)}
.hot-rank li:nth-child(3) .rank-num{color:var(--color-primary)}
.hot-rank .hot-count{margin-left:auto;font-family:var(--font-num);font-size:.75rem;color:var(--color-sub)}

@media screen and (max-width:960px){
  .news-wrap{grid-template-columns:1fr;gap:32px}
  .news-sidebar{flex-direction:row;flex-wrap:wrap}
  .sidebar-card{flex:1 1 280px}
}
@media screen and (max-width:640px){
  .news-list article{flex-direction:column;gap:6px;padding:14px 0}
  .news-list h3{font-size:.95rem}
}

/* ===== FAQ ===== */
.faq-section{background:var(--color-surface)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  border:1px solid var(--color-border);border-radius:14px;margin-bottom:12px;
  background:var(--color-bg);transition:border-color .25s,box-shadow .25s;
}
.faq-item:hover{border-color:var(--color-primary)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;font-size:1rem;font-weight:700;color:var(--color-text);
  user-select:none;transition:color .25s;
}
.faq-q i{color:var(--color-primary);font-size:1.1rem;transition:transform .35s ease}
.faq-item.active .faq-q{color:var(--color-primary)}
.faq-item.active .faq-q i{transform:rotate(45deg)}
.faq-a{display:none;padding:0 24px 22px;color:var(--color-sub);line-height:1.75;font-size:.95rem;max-width:72ch}
.faq-item.active .faq-a{display:block}

/* ===== Download CTA ===== */
.download-cta{
  background-color:var(--color-secondary);
  background-image:url('/assets/images/backpic/back-3.jpg');
  background-size:cover;
  background-position:center;
  position:relative;
  padding:var(--space-section) 0;
}
.download-cta::before{content:'';position:absolute;inset:0;background:rgba(27,27,31,.78)}
.download-inner{position:relative;z-index:2;color:var(--color-on-dark)}
.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.download-copy h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;color:var(--color-on-dark);letter-spacing:-.02em;margin-bottom:18px}
.download-copy p{color:var(--color-on-dark-sub);font-size:1rem;line-height:1.8;max-width:48ch;margin-bottom:28px}
.download-methods{display:flex;flex-direction:column;gap:14px}
.method-card{
  display:flex;gap:16px;align-items:center;padding:16px 20px;border-radius:14px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
  transition:background .25s,border-color .25s;
}
.method-card:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2)}
.method-icon{width:42px;height:42px;border-radius:12px;background:rgba(198,225,0,.12);color:var(--color-accent);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}
.method-card h4{font-size:.98rem;color:var(--color-on-dark);font-weight:700;margin-bottom:2px}
.method-card p{font-size:.8rem;color:var(--color-on-dark-sub);margin-bottom:6px}
.method-card .btn{margin-left:auto;padding:8px 18px;font-size:.83rem;flex-shrink:0}

.lead-form-card{
  background:var(--color-surface);border-radius:var(--radius-card);
  padding:32px;box-shadow:0 18px 40px rgba(27,27,31,.3);
}
.lead-form-card h3{font-size:1.2rem;font-weight:800;margin-bottom:6px;color:var(--color-text)}
.lead-form-card>p{font-size:.85rem;color:var(--color-sub);margin-bottom:22px}
.lead-form-card label{font-size:.82rem;font-weight:600;color:var(--color-text);margin-bottom:5px;display:block}
.lead-form-card input,.lead-form-card select,.lead-form-card textarea{
  width:100%;border:1px solid var(--color-border);border-radius:var(--radius-input);
  padding:11px 14px;font-size:.92rem;background:var(--color-surface);color:var(--color-text);
  transition:border-color .25s,box-shadow .25s;margin-bottom:16px;
}
.lead-form-card input:focus,.lead-form-card select:focus,.lead-form-card textarea:focus{
  outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(240,90,0,.15);
}
.lead-form-card textarea{min-height:90px;resize:vertical}
.form-privacy{font-size:.75rem;color:var(--color-sub);margin-top:12px;line-height:1.6}

@media screen and (max-width:960px){
  .download-grid{grid-template-columns:1fr;gap:36px}
  .method-card{flex-wrap:wrap}
}
@media screen and (max-width:640px){
  .lead-form-card{padding:24px 20px}
  .method-card .btn{margin-left:0;width:100%;justify-content:center}
}

/* ===== Footer ===== */
.site-footer{
  background:var(--color-secondary);
  color:var(--color-on-dark-sub);
  padding-top:56px;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px;
  max-width:1200px;margin:0 auto;padding:0 24px 40px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .footer-logo{font-size:1.4rem;font-weight:800;color:var(--color-on-dark);display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .footer-logo i{color:var(--color-primary)}
.footer-brand p{font-size:.88rem;line-height:1.75;max-width:34ch}
.footer-col h4{color:var(--color-on-dark);font-size:.92rem;font-weight:700;margin-bottom:16px}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:.86rem;color:var(--color-on-dark-sub)}
.footer-col a:hover{color:var(--color-primary)}
.footer-status .update-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(198,225,0,.1);color:var(--color-accent);border-radius:999px;padding:6px 16px;font-size:.8rem;margin-bottom:12px}
.footer-status ul li{font-family:var(--font-num);font-size:.8rem;color:var(--color-on-dark-sub);padding:5px 0}
.footer-bottom{
  max-width:1200px;margin:0 auto;padding:20px 24px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:.78rem;color:var(--color-on-dark-sub);
}
.footer-bottom a{color:var(--color-on-dark-sub)}
.footer-bottom a:hover{color:var(--color-primary)}

@media screen and (max-width:960px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}

/* ===== Reveal effect ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* roulang page: category1 */
:root {
  --color-primary: #F05A00;
  --color-primary-dark: #D94D00;
  --color-secondary: #1B1B20;
  --color-accent: #C6E100;
  --color-bg: #FAF7F2;
  --color-surface: #FFFFFF;
  --color-border: #E7E0D8;
  --color-text: #2D2D31;
  --color-sub: #76767D;
  --color-on-dark: #F5F4F2;
  --color-on-dark-sub: #A2A2A8;
  --radius-card: 16px;
  --radius-input: 10px;
  --radius-btn: 999px;
  --shadow-card: 0 2px 10px rgba(27,27,31,0.06);
  --shadow-hover: 0 12px 28px rgba(27,27,31,0.12);
  --font-cn: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num: "Roboto Mono","SF Mono",monospace;
  --space-section: clamp(4rem,8vw,6.5rem);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-cn);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 0;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease, border-color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.row {
  max-width: 1200px;
}
.section {
  padding: var(--space-section) 0;
}
.section-dark {
  background: var(--color-secondary);
  color: var(--color-on-dark);
}
.section-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 2rem;
}
.section-head .bar {
  width: 4px;
  height: 20px;
  background: var(--color-primary);
  border-radius: 2px;
  flex-shrink: 0;
  margin-top: 8px;
}
.section-head h2 {
  font-size: clamp(1.6rem,3vw,2.2rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.section-head .sub {
  margin-left: auto;
  font-size: .9rem;
  color: var(--color-sub);
  white-space: nowrap;
}
.section-intro {
  max-width: 68ch;
  color: var(--color-sub);
  font-size: 1rem;
  margin: -0.5rem 0 2rem;
  line-height: 1.7;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: .95rem;
  border-radius: var(--radius-btn);
  padding: 12px 28px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .25s ease, color .25s ease, transform .25s ease, box-shadow .25s ease, outline .15s ease;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid rgba(240,90,0,.3);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(240,90,0,.25);
}
.btn-secondary {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: transparent;
}
.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(240,90,0,.06);
}
.btn-dark {
  background: var(--color-secondary);
  color: #fff;
  border: none;
}
.btn-dark:hover {
  background: #2f2f36;
  transform: translateY(-2px);
}
.btn-light {
  background: var(--color-accent);
  color: var(--color-secondary);
}
.btn-light:hover {
  background: #d9f213;
  transform: translateY(-2px);
}
.btn-block {
  width: 100%;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #efe9e2;
  color: var(--color-text);
  font-size: .8rem;
  border-radius: 999px;
  padding: 4px 14px;
  font-weight: 500;
  transition: background .25s, color .25s;
}
.badge:hover {
  background: var(--color-primary);
  color: #fff;
}
.badge-accent {
  background: rgba(198,225,0,.18);
  color: var(--color-secondary);
}
.badge-orange {
  background: rgba(240,90,0,.1);
  color: var(--color-primary);
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250,247,242,.95);
  border-bottom: 1px solid transparent;
  transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
  backdrop-filter: blur(6px);
}
.site-header.scrolled {
  background: rgba(250,247,242,.92);
  border-bottom-color: var(--color-border);
  box-shadow: 0 2px 16px rgba(27,27,31,.05);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 16px 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-secondary);
  flex-shrink: 0;
}
.brand-logo i {
  color: var(--color-primary);
  font-size: 1.2rem;
}
.brand-logo:hover {
  color: var(--color-primary);
}
.main-nav {
  flex: 1;
}
.main-nav ul {
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: center;
}
.main-nav a {
  font-size: .96rem;
  font-weight: 500;
  color: var(--color-sub);
  position: relative;
  padding: 6px 0;
  display: inline-block;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width .25s ease;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.header-cta {
  margin-left: auto;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--color-text);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
}
.nav-toggle:focus-visible {
  outline: 3px solid rgba(240,90,0,.3);
}
/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 150px 0 70px;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  overflow: hidden;
  background-color: var(--color-bg);
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(250,247,242,.92);
}
.page-hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 50px;
}
.page-hero-text {
  flex: 1;
  min-width: 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  font-size: .85rem;
  color: var(--color-sub);
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--color-sub);
}
.breadcrumb a:hover {
  color: var(--color-primary);
}
.breadcrumb-icon {
  margin: 0 6px;
  color: var(--color-border);
}
.page-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 16px;
}
.page-hero h1 .hero-accent {
  color: var(--color-primary);
}
.page-hero-desc {
  font-size: 1rem;
  color: var(--color-sub);
  max-width: 58ch;
  line-height: 1.8;
  margin-bottom: 24px;
}
.page-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}
.hero-stat {
  display: flex;
  flex-direction: column;
}
.hero-stat strong {
  font-family: var(--font-num);
  font-size: 1.6rem;
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.2;
}
.hero-stat span {
  font-size: .8rem;
  color: var(--color-sub);
  margin-top: 2px;
}
.page-hero-image {
  width: 35%;
  flex-shrink: 0;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  border: 4px solid var(--color-surface);
}
.page-hero-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
/* ===== Filter Section ===== */
.filter-section {
  padding: 24px 0 8px;
  background: var(--color-bg);
}
.filter-wrap {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: 1;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #efe9e2;
  color: var(--color-text);
  font-size: .88rem;
  border-radius: 999px;
  padding: 8px 20px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all .25s ease;
}
.chip:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}
.chip.active {
  background: var(--color-secondary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(27,27,31,.15);
}
.filter-search {
  position: relative;
  width: 260px;
  flex-shrink: 0;
}
.filter-search .form-input {
  padding-left: 40px;
  width: 100%;
}
.filter-search i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-sub);
  font-size: .9rem;
  z-index: 2;
}
/* ===== Results Section ===== */
.results-section {
  padding: 32px 0 var(--space-section);
  background: var(--color-bg);
}
.results-layout {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}
.results-list {
  flex: 1;
  min-width: 0;
}
.result-item {
  display: flex;
  align-items: center;
  gap: 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  margin-bottom: 16px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.result-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity .3s ease;
}
.result-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.result-item:hover::before {
  opacity: 1;
}
.result-num {
  font-family: var(--font-num);
  color: var(--color-primary);
  font-size: 1.1rem;
  font-weight: 700;
  width: 44px;
  flex-shrink: 0;
  text-align: center;
  letter-spacing: -0.02em;
}
.result-thumb {
  width: 160px;
  height: 120px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
  background: #efe9e2;
}
.result-body {
  flex: 1;
  min-width: 0;
}
.result-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-text);
  line-height: 1.4;
}
.result-body h3 a {
  position: relative;
}
.result-body h3 a:hover {
  color: var(--color-primary);
}
.result-body p {
  font-size: .88rem;
  color: var(--color-sub);
  margin-bottom: 10px;
  line-height: 1.6;
  max-width: 56ch;
}
.result-meta {
  display: flex;
  gap: 18px;
  font-size: .8rem;
  color: var(--color-sub);
  font-family: var(--font-num);
  flex-wrap: wrap;
}
.result-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.result-meta i {
  color: var(--color-primary);
  font-size: .75rem;
}
.result-action {
  flex-shrink: 0;
}
.result-action .btn {
  padding: 9px 20px;
  font-size: .85rem;
}
.pagination-wrap {
  margin-top: 36px;
  display: flex;
  justify-content: center;
}
.pagination {
  display: flex;
  gap: 8px;
  margin: 0;
}
.pagination li {
  margin: 0;
}
.pagination .page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: .9rem;
  font-weight: 500;
  transition: all .25s ease;
  font-family: var(--font-num);
}
.pagination .page-link:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(240,90,0,.2);
}
.pagination .current .page-link {
  background: var(--color-secondary);
  color: #fff;
  border-color: var(--color-secondary);
}
.pagination .page-dots {
  display: flex;
  align-items: center;
  color: var(--color-sub);
  font-family: var(--font-num);
  padding: 0 4px;
}
/* ===== Sidebar ===== */
.results-sidebar {
  width: 300px;
  flex-shrink: 0;
}
.sidebar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-card);
}
.sidebar-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text);
}
.sidebar-card h4::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 2px;
  flex-shrink: 0;
}
.update-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-num);
  font-size: .85rem;
  padding: 11px 0;
  border-bottom: 1px solid var(--color-border);
}
.update-list li:last-child {
  border-bottom: none;
}
.update-version {
  color: var(--color-primary);
  font-weight: 700;
}
.update-date {
  color: var(--color-sub);
  font-size: .78rem;
}
.update-note {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(198,225,0,.12);
  border-radius: 8px;
  padding: 10px 14px;
  margin-top: 14px;
  font-size: .82rem;
  color: var(--color-text);
  border: 1px solid rgba(198,225,0,.3);
}
.update-note i {
  color: var(--color-accent);
}
.related-cats a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: .9rem;
  color: var(--color-text);
  transition: all .25s ease;
}
.related-cats a:last-child {
  border-bottom: none;
}
.related-cats a:hover {
  color: var(--color-primary);
  padding-left: 8px;
}
.related-cats a i {
  width: 20px;
  color: var(--color-primary);
  font-size: .9rem;
  text-align: center;
}
.related-cats .related-count {
  margin-left: auto;
  font-family: var(--font-num);
  font-size: .75rem;
  color: var(--color-sub);
  background: var(--color-bg);
  border-radius: 999px;
  padding: 2px 10px;
}
/* ===== Scenario Section ===== */
.scenario-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.scenario-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}
.scenario-items {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.scenario-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.scenario-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(240,90,0,.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  border: 1px solid rgba(240,90,0,.12);
}
.scenario-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.scenario-item p {
  font-size: .88rem;
  color: var(--color-sub);
  line-height: 1.6;
  max-width: 44ch;
}
.steps-card {
  background: var(--color-secondary);
  border-radius: var(--radius-card);
  padding: 32px;
  color: var(--color-on-dark);
}
.steps-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--color-on-dark);
  display: flex;
  align-items: center;
  gap: 10px;
}
.steps-card h3 i {
  color: var(--color-accent);
}
.step-list {
  position: relative;
}
.step-list::before {
  content: '';
  position: absolute;
  left: 13px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: rgba(255,255,255,.1);
}
.step-item {
  position: relative;
  padding: 0 0 24px 44px;
  z-index: 1;
}
.step-item:last-child {
  padding-bottom: 0;
}
.step-num {
  position: absolute;
  left: 0;
  top: 2px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-num);
  font-size: .8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 4px rgba(240,90,0,.2);
}
.step-item h4 {
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-on-dark);
  margin-bottom: 3px;
}
.step-item p {
  font-size: .82rem;
  color: var(--color-on-dark-sub);
  line-height: 1.5;
}
/* ===== FAQ Section ===== */
.faq-section {
  background: var(--color-bg);
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}
.accordion-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.accordion-item.is-active {
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(27,27,31,.06);
}
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color .25s ease;
  user-select: none;
}
.accordion-title:hover {
  color: var(--color-primary);
}
.accordion-item.is-active .accordion-title {
  color: var(--color-primary);
}
.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  color: var(--color-sub);
  flex-shrink: 0;
  transition: all .3s ease;
}
.accordion-item.is-active .accordion-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.accordion-content {
  padding: 0 24px 22px;
  color: var(--color-sub);
  font-size: .9rem;
  line-height: 1.7;
  max-width: 72ch;
}
.accordion-content p {
  margin-bottom: 8px;
}
.accordion-content p:last-child {
  margin-bottom: 0;
}
/* ===== CTA Section ===== */
.cta-section {
  background: var(--color-secondary);
  color: var(--color-on-dark);
  padding: var(--space-section) 0;
}
.cta-layout {
  display: flex;
  gap: 60px;
  align-items: center;
}
.cta-text {
  flex: 1;
  min-width: 0;
}
.cta-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-on-dark);
  line-height: 1.3;
}
.cta-text h2 .cta-accent {
  color: var(--color-primary);
}
.cta-text p {
  color: var(--color-on-dark-sub);
  font-size: .95rem;
  line-height: 1.7;
  max-width: 42ch;
  margin-bottom: 24px;
}
.cta-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cta-point {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-on-dark);
  font-size: .9rem;
}
.cta-point i {
  color: var(--color-accent);
  font-size: .85rem;
}
.cta-form-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 32px;
  flex-shrink: 0;
  width: 46%;
  box-shadow: 0 20px 40px rgba(0,0,0,.15);
}
.form-row {
  margin-bottom: 18px;
}
.form-row:last-of-type {
  margin-bottom: 24px;
}
.form-label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 10px 14px;
  color: var(--color-text);
  font-size: .9rem;
  outline: none;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(240,90,0,.15);
  background: var(--color-surface);
}
.form-input::placeholder {
  color: #aaa;
}
select.form-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2376767D' d='M1.5 1.5L6 6l4.5-4.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
textarea.form-input {
  min-height: 80px;
  resize: vertical;
}
.form-success {
  display: none;
  align-items: center;
  gap: 8px;
  background: rgba(198,225,0,.15);
  border: 1px solid rgba(198,225,0,.3);
  color: var(--color-secondary);
  border-radius: var(--radius-input);
  padding: 14px 18px;
  font-size: .9rem;
  font-weight: 600;
  margin-top: 16px;
}
.form-success.show {
  display: flex;
}
.form-success i {
  color: var(--color-accent);
  font-size: 1.2rem;
}
/* ===== Footer ===== */
.site-footer {
  background: var(--color-secondary);
  color: var(--color-on-dark);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.footer-logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-on-dark);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.footer-logo i {
  color: var(--color-primary);
  font-size: 1.2rem;
}
.footer-brand p {
  color: var(--color-on-dark-sub);
  font-size: .9rem;
  max-width: 34ch;
  line-height: 1.7;
  margin-bottom: 0;
}
.footer-col h4 {
  color: var(--color-on-dark);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul {
  padding: 0;
  margin: 0;
}
.footer-col li {
  margin: 0;
}
.footer-col a {
  display: inline-block;
  padding: 6px 0;
  color: var(--color-on-dark-sub);
  font-size: .9rem;
  transition: color .25s, padding-left .25s;
}
.footer-col a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}
.footer-status ul {
  padding: 0;
  margin: 14px 0 0;
}
.footer-status li {
  font-family: var(--font-num);
  font-size: .8rem;
  color: var(--color-on-dark-sub);
  padding: 4px 0;
}
.update-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(198,225,0,.15);
  color: var(--color-accent);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: .82rem;
  font-weight: 500;
}
.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding: 20px 24px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: .8rem;
  color: var(--color-on-dark-sub);
}
.footer-bottom a {
  color: var(--color-on-dark-sub);
  white-space: nowrap;
}
.footer-bottom a:hover {
  color: var(--color-primary);
}
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-inner {
    gap: 16px;
    padding: 14px 20px;
  }
  .main-nav ul {
    gap: 18px;
  }
  .page-hero {
    padding: 130px 0 56px;
  }
  .page-hero-image {
    width: 32%;
  }
  .results-layout {
    gap: 24px;
  }
  .results-sidebar {
    width: 260px;
  }
  .cta-layout {
    gap: 40px;
  }
  .cta-form-card {
    width: 50%;
  }
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 30px;
  }
  .footer-status {
    grid-column: 1 / -1;
  }
  .scenario-grid {
    gap: 40px;
  }
}
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 10px;
  }
  .nav-toggle {
    display: inline-block;
    order: 3;
  }
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 24px rgba(27,27,31,.08);
    display: none;
    padding: 12px 20px 20px;
    z-index: 999;
    order: 4;
    flex-basis: 100%;
  }
  .main-nav.open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 4px;
    align-items: stretch;
    padding: 0;
  }
  .main-nav li {
    margin: 0;
  }
  .main-nav a {
    display: block;
    padding: 12px 8px;
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem;
  }
  .main-nav a::after {
    display: none;
  }
  .main-nav a.active {
    color: var(--color-primary);
    background: rgba(240,90,0,.05);
    border-radius: 8px;
  }
  .header-cta {
    margin-left: 0;
    padding: 10px 20px;
    font-size: .88rem;
    order: 2;
  }
  .brand-logo {
    order: 1;
    font-size: 1.3rem;
    margin-right: auto;
  }
  .page-hero-inner {
    flex-direction: column;
    gap: 32px;
  }
  .page-hero-image {
    width: 100%;
    max-width: 420px;
  }
  .page-hero-stats {
    gap: 18px;
  }
  .filter-wrap {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-search {
    width: 100%;
  }
  .results-layout {
    flex-direction: column;
  }
  .results-sidebar {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .sidebar-card {
    margin-bottom: 0;
  }
  .result-item {
    flex-wrap: wrap;
    gap: 14px;
    padding: 18px;
  }
  .result-thumb {
    width: 120px;
    height: 90px;
  }
  .result-num {
    width: 34px;
    font-size: .95rem;
  }
  .result-action {
    width: 100%;
  }
  .result-action .btn {
    width: 100%;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .cta-layout {
    flex-direction: column;
    gap: 36px;
  }
  .cta-form-card {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 520px) {
  .container,
  .header-inner {
    padding-left: 16px;
    padding-right: 16px;
  }
  .brand-logo {
    font-size: 1.15rem;
  }
  .header-cta {
    padding: 9px 16px;
    font-size: .82rem;
  }
  .page-hero {
    padding: 110px 0 44px;
  }
  .page-hero h1 {
    font-size: 1.7rem;
  }
  .hero-stat strong {
    font-size: 1.3rem;
  }
  .result-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .result-thumb {
    width: 100%;
    height: 160px;
  }
  .result-num {
    width: auto;
    font-size: .85rem;
    text-align: left;
  }
  .results-sidebar {
    grid-template-columns: 1fr;
  }
  .section-head .sub {
    width: 100%;
    margin-left: 0;
    margin-top: 4px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    gap: 8px;
  }
}