/* roulang page: index */
:root{
  --color-primary:#0E7C66;
  --color-primary-dark:#0B6553;
  --color-primary-light:#D3F0E8;
  --color-accent:#D97706;
  --color-accent-dark:#B45309;
  --color-accent-light:#FDEBC7;
  --color-bg:#F8F7F4;
  --color-bg-white:#FFFFFF;
  --color-text:#1E293B;
  --color-text-light:#64748B;
  --color-border:#E5E7EB;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 4px 20px rgba(15,23,42,0.06);
  --shadow-lg:0 12px 36px rgba(15,23,42,0.12);
  --transition:all 0.3s ease;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{font-family:var(--font-sans,'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif);background:var(--color-bg);color:var(--color-text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button{cursor:pointer;font-family:inherit}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--color-primary);background:var(--color-primary-light);padding:6px 16px;border-radius:999px}
.section-title{font-size:36px;font-weight:700;line-height:1.3;letter-spacing:-0.5px;color:var(--color-text);margin-top:16px}
.section-desc{font-size:16px;color:var(--color-text-light);max-width:640px;margin-top:12px;line-height:1.8}
@media(max-width:768px){.section{padding:56px 0}.section-title{font-size:28px}}

/* Header & Nav */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(229,231,235,0.6);transition:var(--transition)}
.site-header.scrolled{box-shadow:0 4px 24px rgba(15,23,42,0.08)}
.nav-link{position:relative;font-size:15px;font-weight:500;color:#334155;padding:8px 4px;transition:color 0.3s}
.nav-link:hover{color:var(--color-primary)}
.nav-link::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--color-primary);transition:width 0.3s}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--color-primary)}
.nav-link.active::after{width:100%}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:12px 24px;border-radius:12px;transition:var(--transition);border:none;outline:none}
.btn:focus-visible{outline:3px solid rgba(14,124,102,0.4);outline-offset:2px}
.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 4px 16px rgba(14,124,102,0.3)}
.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(14,124,102,0.35)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--color-primary);border:2px solid var(--color-primary);padding:10px 22px}
.btn-outline:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px)}
.btn-accent{background:var(--color-accent);color:#fff;box-shadow:0 4px 16px rgba(217,119,6,0.3)}
.btn-accent:hover{background:var(--color-accent-dark);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,0.08);color:#fff;border:1px solid rgba(255,255,255,0.35);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:rgba(255,255,255,0.18);transform:translateY(-2px)}
.btn-lg{padding:16px 32px;font-size:16px}

/* Hero */
.hero-section{position:relative;padding:160px 0 100px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg, rgba(248,247,244,0.97) 0%, rgba(248,247,244,0.93) 40%, rgba(248,247,244,0.65) 100%)}
.hero-stage{position:relative;border-radius:24px;overflow:hidden;box-shadow:0 24px 80px rgba(15,23,42,0.18);transform:perspective(1200px) rotateY(-2deg);transition:var(--transition)}
.hero-stage:hover{transform:perspective(1200px) rotateY(0deg) scale(1.01)}
.hero-stage img{width:100%;height:340px;object-fit:cover;object-position:center}
.hero-stage-caption{position:absolute;left:16px;right:16px;bottom:16px;background:rgba(5,43,36,0.72);backdrop-filter:blur(8px);color:#fff;padding:14px 18px;border-radius:14px;font-size:14px;line-height:1.5;text-align:center}
.hero-point{display:flex;align-items:flex-start;gap:14px;padding:16px 18px;background:rgba(255,255,255,0.75);backdrop-filter:blur(6px);border:1px solid rgba(229,231,235,0.8);border-radius:14px;transition:var(--transition)}
.hero-point:hover{background:#fff;box-shadow:var(--shadow);transform:translateX(4px)}
.hero-point-icon{width:36px;height:36px;flex-shrink:0;border-radius:10px;background:var(--color-primary-light);color:var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:15px}
.hero-point-title{font-weight:600;font-size:15px;color:var(--color-text)}
.hero-point-desc{font-size:13px;color:var(--color-text-light);margin-top:2px}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.hero-stat{background:rgba(255,255,255,0.8);backdrop-filter:blur(6px);border:1px solid rgba(229,231,235,0.8);border-radius:14px;padding:14px;text-align:center}
.hero-stat-num{font-size:24px;font-weight:700;color:var(--color-primary)}
.hero-stat-label{font-size:12px;color:var(--color-text-light);margin-top:2px}

/* Metrics */
.metrics-section{margin-top:-40px;position:relative;z-index:5}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric-card{background:#fff;border-radius:var(--radius);padding:28px 24px;text-align:center;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5);transition:var(--transition)}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.metric-num{font-size:36px;font-weight:800;color:var(--color-primary);line-height:1.2}
.metric-label{font-size:14px;color:var(--color-text-light);margin-top:8px;font-weight:500}

/* Compare Table */
.compare-wrap{background:#fff;border-radius:20px;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5);overflow:hidden}
.compare-table{width:100%;border-collapse:collapse}
.compare-table th,.compare-table td{padding:18px 24px;text-align:left;font-size:14px;border-bottom:1px solid var(--color-border)}
.compare-table th{background:#F0FDF9;font-weight:600;color:var(--color-primary-dark);font-size:15px}
.compare-table tr:last-child td{border-bottom:none}
.compare-table td:first-child{font-weight:600;color:var(--color-text)}
.compare-table .compare-new{color:var(--color-primary);font-weight:500}
.compare-table .compare-old{color:#94A3B8}
.compare-mobile{display:none}

/* Services */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service-card{background:#fff;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5);transition:var(--transition);display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.service-card-img{position:relative;height:190px;overflow:hidden}
.service-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
.service-card:hover .service-card-img img{transform:scale(1.06)}
.service-card-tag{position:absolute;top:12px;left:12px;background:rgba(14,124,102,0.9);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;backdrop-filter:blur(4px)}
.service-card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.service-card-title{font-size:18px;font-weight:700;color:var(--color-text)}
.service-card-desc{font-size:14px;color:var(--color-text-light);margin-top:8px;line-height:1.6;flex:1}
.service-card-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:16px;border-top:1px solid var(--color-border)}
.service-card-price{font-size:18px;font-weight:700;color:var(--color-accent)}
.service-card-btn{font-size:14px;font-weight:600;color:var(--color-primary);background:var(--color-primary-light);padding:8px 16px;border-radius:999px;transition:var(--transition)}
.service-card-btn:hover{background:var(--color-primary);color:#fff}

/* Process */
.process-section{background:linear-gradient(160deg, #073D33 0%, #095043 60%, #0B6553 100%);position:relative;overflow:hidden}
.process-section .section-title{color:#fff}
.process-section .section-desc{color:rgba(255,255,255,0.75)}
.process-section .section-label{background:rgba(255,255,255,0.15);color:#fff}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.process-step{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);border-radius:20px;padding:28px 24px;backdrop-filter:blur(8px);transition:var(--transition);position:relative}
.process-step:hover{background:rgba(255,255,255,0.14);transform:translateY(-4px)}
.process-step-num{font-size:40px;font-weight:800;color:rgba(255,255,255,0.25);line-height:1}
.process-step-title{font-size:18px;font-weight:700;color:#fff;margin-top:14px}
.process-step-desc{font-size:14px;color:rgba(255,255,255,0.7);margin-top:8px;line-height:1.6}

/* Reviews */
.reviews-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:40px;align-items:start}
.review-summary{background:#fff;border-radius:20px;padding:32px;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5)}
.review-score{font-size:56px;font-weight:800;color:var(--color-accent);line-height:1}
.review-stars{color:#F59E0B;font-size:18px;margin-top:8px}
.review-sub{font-size:14px;color:var(--color-text-light);margin-top:8px}
.review-bar{margin-top:20px;display:flex;align-items:center;gap:10px;font-size:12px;color:var(--color-text-light)}
.review-bar-track{flex:1;height:6px;background:#F1F5F9;border-radius:999px;overflow:hidden}
.review-bar-fill{height:100%;background:var(--color-accent);border-radius:999px}
.review-list{display:grid;gap:20px}
.review-card{background:#fff;border-radius:16px;padding:24px;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5);transition:var(--transition)}
.review-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.review-card-header{display:flex;align-items:center;gap:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:var(--color-primary-light);color:var(--color-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.review-name{font-weight:600;font-size:15px}
.review-role{font-size:12px;color:var(--color-text-light)}
.review-stars-sm{color:#F59E0B;font-size:13px;margin-left:auto}
.review-text{font-size:14px;color:#475569;line-height:1.7;margin-top:14px}

/* News */
.news-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:40px}
.news-list{display:grid;gap:16px}
.news-item{background:#fff;border-radius:14px;padding:20px 24px;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5);transition:var(--transition);display:flex;gap:16px;align-items:flex-start}
.news-item:hover{box-shadow:var(--shadow-lg);transform:translateX(4px)}
.news-date{flex-shrink:0;font-size:13px;color:var(--color-primary);font-weight:600;background:var(--color-primary-light);padding:6px 14px;border-radius:8px;white-space:nowrap}
.news-item-title{font-size:16px;font-weight:600;color:var(--color-text);line-height:1.5;transition:color 0.3s}
.news-item:hover .news-item-title{color:var(--color-primary)}
.news-item-desc{font-size:13px;color:var(--color-text-light);margin-top:4px;line-height:1.6}
.news-sidebar{display:grid;gap:16px}
.news-side-card{background:#fff;border-radius:14px;padding:20px;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5);transition:var(--transition)}
.news-side-card:hover{box-shadow:var(--shadow-lg)}
.news-side-title{font-size:15px;font-weight:700;color:var(--color-text);display:flex;align-items:center;gap:8px}
.news-side-title i{color:var(--color-accent)}
.news-side-list{margin-top:12px;display:grid;gap:8px}
.news-side-link{font-size:14px;color:var(--color-text-light);display:flex;align-items:center;gap:6px;transition:var(--transition)}
.news-side-link:hover{color:var(--color-primary);padding-left:4px}
.news-side-link i{font-size:10px;color:var(--color-border)}

/* Book Form */
.book-section{background:linear-gradient(150deg,#FDEBC7 0%,#FEF7ED 50%,#FFF8EB 100%);position:relative}
.book-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
.book-form-wrap{background:#fff;border-radius:24px;padding:40px;box-shadow:var(--shadow-lg);border:1px solid rgba(229,231,235,0.5)}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--color-text);margin-bottom:6px}
.form-input{width:100%;padding:12px 16px;border:1.5px solid var(--color-border);border-radius:12px;font-size:15px;transition:var(--transition);background:#FAFAFA;outline:none}
.form-input:focus{border-color:var(--color-primary);background:#fff;box-shadow:0 0 0 4px rgba(14,124,102,0.12)}
.form-input:hover{border-color:#CBD5E1}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.book-aside{display:grid;gap:24px}
.book-tip{background:rgba(255,255,255,0.7);border:1px solid rgba(255,255,255,0.9);border-radius:16px;padding:24px;backdrop-filter:blur(6px)}
.book-tip-icon{width:40px;height:40px;border-radius:12px;background:var(--color-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:14px}
.book-tip-title{font-size:16px;font-weight:700;color:var(--color-text)}
.book-tip-desc{font-size:14px;color:var(--color-text-light);margin-top:6px;line-height:1.6}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border-radius:14px;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5);margin-bottom:14px;overflow:hidden;transition:var(--transition)}
.faq-item[open]{box-shadow:var(--shadow-lg)}
.faq-item summary{list-style:none;cursor:pointer;padding:22px 24px;font-size:16px;font-weight:600;color:var(--color-text);display:flex;align-items:center;justify-content:space-between;gap:16px;transition:var(--transition)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--color-primary)}
.faq-item summary::after{content:'+';font-size:24px;font-weight:400;color:var(--color-primary);transition:transform 0.3s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-answer{padding:0 24px 22px;font-size:15px;color:#475569;line-height:1.8;border-top:1px solid var(--color-border);margin-top:4px;padding-top:16px}

/* CTA */
.cta-section{background:linear-gradient(135deg,#0B6553 0%,#0E7C66 60%,#3DAF99 100%);position:relative;overflow:hidden}
.cta-section .section-title{color:#fff}
.cta-section .section-desc{color:rgba(255,255,255,0.8)}
.cta-btn-wrap{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.cta-note{font-size:13px;color:rgba(255,255,255,0.6);text-align:center;margin-top:16px}

/* Footer */
.site-footer{background:#052B24;color:rgba(255,255,255,0.7);padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px}
.footer-brand{font-size:20px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.7;margin-top:16px;max-width:340px;color:rgba(255,255,255,0.6)}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-link{font-size:14px;color:rgba(255,255,255,0.6);transition:var(--transition)}
.footer-link:hover{color:#fff;padding-left:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.12);margin-top:48px;padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,0.45)}
.footer-bottom a{color:rgba(255,255,255,0.45)}
.footer-bottom a:hover{color:#fff}

/* Mobile nav */
.mobile-nav{position:fixed;top:64px;left:0;right:0;background:#fff;box-shadow:0 12px 40px rgba(0,0,0,0.12);border-radius:0 0 20px 20px;padding:20px;z-index:999;display:none}
.mobile-nav.open{display:block}
.mobile-nav-link{display:block;padding:14px 16px;font-size:16px;font-weight:500;color:var(--color-text);border-radius:10px;transition:var(--transition)}
.mobile-nav-link:hover{background:var(--color-primary-light);color:var(--color-primary)}
.mobile-nav .btn{width:100%;margin-top:12px}

/* Responsive */
@media(max-width:1024px){
  .services-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .reviews-grid{grid-template-columns:1fr;gap:28px}
  .news-grid{grid-template-columns:1fr}
  .book-grid{grid-template-columns:1fr;gap:32px}
}
@media(max-width:768px){
  .hero-section{padding:120px 0 80px}
  .hero-stage img{height:240px}
  .compare-table{display:none}
  .compare-mobile{display:block}
  .compare-mobile-item{background:#fff;border-radius:14px;padding:18px;box-shadow:var(--shadow);border:1px solid rgba(229,231,235,0.5);margin-bottom:12px}
  .compare-mobile-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed var(--color-border);font-size:14px}
  .compare-mobile-row:last-child{border-bottom:none}
  .compare-mobile-row .compare-new{color:var(--color-primary);font-weight:600;text-align:right}
  .compare-mobile-row .compare-old{color:#94A3B8;text-align:right}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-btn-wrap .btn{width:100%}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .services-grid{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr 1fr;gap:14px}
  .metric-num{font-size:28px}
  .process-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .news-item{flex-direction:column;align-items:flex-start}
  .hero-stats{grid-template-columns:1fr 1fr}
  .hero-stat-num{font-size:20px}
  .section-title{font-size:24px;line-height:1.35}
}

/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #2d5a27;
  --color-primary-dark: #1d3d18;
  --color-primary-light: #3d7a35;
  --color-accent: #c9a227;
  --color-accent-dark: #a8891d;
  --color-bg: #faf9f6;
  --color-surface: #ffffff;
  --color-text: #2c2a26;
  --color-text-light: #6b6760;
  --color-border: #e8e5df;
  --color-dark-bg: #1c2a1a;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.12);
  --space-section: 96px;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.25s ease, opacity 0.25s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

::selection { background: var(--color-accent); color: #fff; }

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 类型工具 ===== */
.section { padding: var(--space-section) 0; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.section-head .eyebrow {
  display: inline-block;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  background: var(--color-tea-50, #f4f7f0);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.section-head h2 {
  margin-top: 16px;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
}
.section-head p {
  margin-top: 16px;
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1;
  border: 2px solid transparent;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.btn-outline:active { transform: translateY(0); }
.btn-accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.btn:focus-visible {
  outline: 3px solid rgba(201,162,39,0.5);
  outline-offset: 2px;
}
.btn-sm { padding: 10px 22px; font-size: 0.875rem; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 72px;
}
.logo {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.3px;
  line-height: 1.3;
  white-space: nowrap;
}
.logo:hover { opacity: 0.8; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all 0.25s ease;
}
.nav-links a:hover {
  background: var(--color-primary);
  color: #fff;
}
.nav-links a.active {
  background: var(--color-tea-50, #f4f7f0);
  color: var(--color-primary);
  font-weight: 600;
}
.btn-nav-cta {
  padding: 12px 26px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.92rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}
.btn-nav-cta:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
}
.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  margin: 4px auto;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.mobile-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.mobile-toggle[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(180deg, #f0f5ee 0%, var(--color-bg) 100%);
  padding: 72px 0 80px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(201,162,39,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  gap: 24px;
  align-items: center;
}
.hero-value {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.value-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(201,162,39,0.4);
}
.value-card .value-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.value-card .value-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 4px;
}
.value-card .value-desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.6;
}
.hero-stage {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.stage-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
}
.stage-overlay {
  position: relative;
  z-index: 2;
  background: linear-gradient(180deg, rgba(28,37,24,0.75) 0%, rgba(28,37,24,0.55) 60%, rgba(28,37,24,0.75) 100%);
  inset: 0;
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  width: 100%;
  height: 100%;
}
.stage-overlay .hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-full);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 1px;
  margin-bottom: 18px;
  backdrop-filter: blur(4px);
}
.stage-overlay h1 {
  color: #fff;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 800;
  line-height: 1.35;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
  max-width: 520px;
  margin-bottom: 16px;
}
.stage-overlay .hero-desc {
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 28px;
}
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* ===== 指标看板 ===== */
.stats-band {
  background: var(--color-dark-bg);
  padding: 56px 0;
  color: #fff;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item .stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
}
.stat-item .stat-label {
  margin-top: 8px;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
}

/* ===== 服务矩阵 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.service-card:hover::before { opacity: 1; }
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201,162,39,0.35);
}
.service-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}
.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--color-tea-50, #f4f7f0);
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 500;
}

/* ===== 品牌故事 ===== */
.brand-story {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 100px 0;
  color: #fff;
}
.brand-story::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(28,37,24,0.92) 0%, rgba(28,37,24,0.72) 60%, rgba(28,37,24,0.35) 100%);
}
.brand-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.brand-content .brand-kicker {
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.brand-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
}
.brand-content p {
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.9);
  margin-bottom: 16px;
}
.brand-meta {
  display: flex;
  gap: 32px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.brand-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
}
.brand-meta .meta-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

/* ===== 对比表 ===== */
.compare-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
}
.compare-table th, .compare-table td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
  vertical-align: middle;
}
.compare-table thead th {
  background: var(--color-dark-bg);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  padding: 20px;
}
.compare-table thead th:nth-child(1) {
  background: rgba(28,37,24,0.85);
  width: 22%;
}
.compare-table thead th:nth-child(2) {
  background: rgba(28,37,24,0.95);
  width: 39%;
}
.compare-table thead th:nth-child(3) {
  background: var(--color-primary);
  width: 39%;
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:hover td { background: rgba(244,247,240,0.6); }
.compare-table td:first-child { font-weight: 600; color: var(--color-text); }
.compare-bad {
  color: #b06060;
  font-size: 0.9rem;
}
.compare-good {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
}
.compare-good::before { content: '✓ '; font-weight: 800; }
.compare-bad::before { content: '✗ '; font-weight: 800; }

/* ===== 评价墙 ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  align-items: stretch;
}
.rating-summary {
  background: var(--color-dark-bg);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: var(--shadow-md);
}
.rating-score {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}
.rating-stars {
  font-size: 1.4rem;
  color: var(--color-accent);
  margin: 12px 0;
  letter-spacing: 4px;
}
.rating-total { font-size: 0.9rem; color: rgba(255,255,255,0.7); }
.rating-features { margin-top: 24px; display: flex; flex-direction: column; gap: 10px; }
.rating-features .rf-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
}
.rating-features .rf-item svg { width: 16px; height: 16px; color: var(--color-accent); }
.review-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.review-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.review-stars { color: var(--color-accent); font-size: 0.9rem; margin-bottom: 10px; }
.review-text { font-size: 0.92rem; line-height: 1.7; color: var(--color-text); flex-grow: 1; margin-bottom: 16px; }
.review-user {
  display: flex;
  align-items: center;
  gap: 10px;
}
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}
.review-name { font-weight: 600; font-size: 0.9rem; }
.review-type { font-size: 0.78rem; color: var(--color-text-light); }

/* ===== 资讯列表 ===== */
.news-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  align-items: start;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.news-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--color-border);
  transition: all 0.3s ease;
  border-radius: var(--radius-sm);
}
.news-item:first-child { border-top: 1px solid var(--color-border); }
.news-item:hover {
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
.news-date {
  font-size: 0.8rem;
  color: var(--color-text-light);
  white-space: nowrap;
  min-width: 88px;
}
.news-title {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.98rem;
  line-height: 1.5;
  transition: color 0.2s;
}
.news-item:hover .news-title { color: var(--color-primary); }
.news-cat {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--color-tea-50, #f4f7f0);
  color: var(--color-primary);
  font-weight: 500;
  white-space: nowrap;
}
.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.side-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  min-height: 140px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow-sm);
}
.side-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.side-card .side-overlay {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 20px;
  background: linear-gradient(180deg, transparent 0%, rgba(28,37,24,0.85) 100%);
  color: #fff;
}
.side-card .side-tag { font-size: 0.75rem; color: var(--color-accent); font-weight: 600; }
.side-card .side-title { font-size: 0.98rem; font-weight: 700; margin-top: 4px; line-height: 1.4; }
.side-note {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  font-size: 0.9rem;
  color: var(--color-text-light);
}
.side-note strong { color: var(--color-primary); }

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-item details { padding: 0; }
.faq-item summary {
  padding: 22px 28px;
  font-weight: 600;
  font-size: 1.02rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--color-primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item details[open] summary::after { transform: rotate(45deg); }
.faq-item details[open] summary { border-bottom: 1px solid var(--color-border); }
.faq-answer {
  padding: 18px 28px 24px;
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ===== 转化表单 ===== */
.contact-section {
  background: linear-gradient(160deg, rgba(28,37,24,0.08) 0%, transparent 40%);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.contact-info h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}
.contact-info > p {
  color: var(--color-text-light);
  font-size: 0.98rem;
  line-height: 1.8;
  margin-bottom: 32px;
}
.contact-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-feature {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--color-tea-50, #f4f7f0);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 500;
}
.contact-feature svg { width: 20px; height: 20px; color: var(--color-primary); flex-shrink: 0; }
.lead-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 18px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: 0.95rem;
  transition: all 0.3s ease;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45,90,39,0.1);
  background: #fff;
}
.form-group textarea { min-height: 90px; resize: vertical; }
.form-success {
  text-align: center;
  padding: 40px 24px;
  display: none;
}
.form-success .success-icon {
  font-size: 3rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.form-success h3 { font-size: 1.4rem; margin-bottom: 8px; }
.form-success p { color: var(--color-text-light); }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-dark-bg);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .footer-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.4;
}
.footer-brand p { font-size: 0.88rem; line-height: 1.8; max-width: 320px; }
.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: all 0.25s;
}
.footer-col a:hover { color: var(--color-accent); padding-left: 6px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}
.footer-bottom .domain { color: rgba(255,255,255,0.3); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root { --space-section: 72px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: 1fr; }
  .review-cards { grid-template-columns: repeat(3, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 20px; }
  .hero-value { flex-direction: row; flex-wrap: wrap; justify-content: center; }
  .value-card { flex: 1 1 calc(50% - 10px); min-width: 180px; }
  .contact-grid { grid-template-columns: 1fr; padding: 32px; }
}

@media (max-width: 768px) {
  :root { --space-section: 56px; }
  .nav-wrap { height: auto; min-height: 64px; flex-wrap: wrap; padding: 10px 0; }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 4px;
    padding-top: 10px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 16px; text-align: left; border-radius: var(--radius-sm); }
  .mobile-toggle { display: flex; flex-direction: column; }
  .btn-nav-cta { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .services-grid { grid-template-columns: 1fr; }
  .review-cards { grid-template-columns: 1fr; }
  .news-layout { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .compare-table th, .compare-table td { padding: 12px; font-size: 0.82rem; }
  .stage-overlay { padding: 32px 20px; min-height: 360px; }
  .hero { padding: 48px 0 56px; }
  .brand-story { padding: 72px 0; background-attachment: scroll; }
  .brand-meta { gap: 20px; flex-direction: column; }
  .contact-grid { gap: 32px; }
  .news-item { flex-wrap: wrap; gap: 8px; }
  .news-date { min-width: auto; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-value { flex-direction: column; }
  .value-card { flex: 1 1 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-item .stat-number { font-size: 1.8rem; }
  .hero-buttons .btn { width: 100%; }
  .section-head h2 { font-size: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
}