:root{
  --paper:#F6F2EA;
  --paper-2:#EDE7DB;
  --card:#FCFAF5;
  --ink:#202833;
  --ink-2:#55606E;
  --muted:#8A93A1;
  --pine:#2E5C4E;
  --pine-deep:#23463B;
  --pine-soft:#E5EDE7;
  --pine-faint:#F0F5F1;
  --line:#E0D9CD;
  --radius:20px;
  --shadow:0 18px 50px rgba(35,70,59,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--paper);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;
}
.display{font-family:'Noto Serif SC','Songti SC','SimSun',serif;font-weight:700;letter-spacing:-.01em;line-height:1.28}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.small{font-size:13px;color:var(--muted)}

/* 顶栏 */
.nav{position:sticky;top:0;z-index:50;background:rgba(246,242,234,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;font-family:'Noto Serif SC',serif;font-weight:700;font-size:20px;letter-spacing:.02em}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--pine);color:#F6F2EA;display:grid;place-items:center}
.brand-mark svg{width:18px;height:18px}
.nav-links{display:flex;gap:28px;font-size:15px;color:var(--ink-2)}
.nav-links a{position:relative;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--pine)}
.lang-switch{display:flex;align-items:center;gap:4px;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--card)}
.lang-link{font-size:13px;padding:6px 12px;border-radius:999px;color:var(--ink-2);transition:all .2s}
.lang-link:hover{color:var(--pine)}
.lang-link.active{background:var(--pine);color:#F6F2EA}
.nav-cta{display:inline-block;background:var(--pine);color:#F6F2EA;padding:10px 20px;border-radius:999px;font-size:14px;transition:background .2s}
.nav-cta:hover{background:var(--pine-deep)}

/* Hero */
.hero{padding:90px 0 70px;position:relative;overflow:hidden}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.18em;color:var(--pine);text-transform:uppercase;font-weight:600}
.hero-eyebrow::before{content:"";width:34px;height:1px;background:var(--pine)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.hero h1{font-size:clamp(38px,5vw,62px);margin:22px 0 24px}
.hero h1 .accent{color:var(--pine)}
.hero-sub{font-size:18px;color:var(--ink-2);max-width:520px;margin-bottom:34px}
.hero-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--pine);color:#F6F2EA;border:0;cursor:pointer;padding:14px 26px;border-radius:999px;font-size:15px;font-weight:600;font-family:inherit;transition:background .2s,transform .15s}
.btn:hover{background:var(--pine-deep);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--pine);color:var(--pine)}
.hero-art{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.hero-art img{width:100%;height:auto}
.taste-axis{margin-top:64px;padding-top:8px}
.axis-line{position:relative;height:2px;background:var(--pine);opacity:.55;border-radius:2px}
.axis-track{display:flex;justify-content:space-between;margin-top:16px}
.axis-node{display:flex;flex-direction:column;align-items:center;gap:8px;width:64px}
.axis-dot{width:10px;height:10px;border-radius:50%;background:var(--card);border:2px solid var(--pine);position:relative;top:-5px}
.axis-dot.filled{background:var(--pine)}
.axis-node span{font-size:13px;color:var(--ink-2);letter-spacing:.05em}
.axis-caption{margin-top:22px;font-size:13px;color:var(--muted);text-align:center;letter-spacing:.12em;text-transform:uppercase}

/* 章节通用 */
.section{padding:96px 0}
.section.dark{background:var(--pine-deep);color:#EDE9E0}
.section.soft{background:var(--paper-2)}
.sec-head{max-width:760px;margin-bottom:56px}
.sec-eyebrow{font-size:12px;letter-spacing:.18em;color:var(--pine);font-weight:600;text-transform:uppercase;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.sec-eyebrow::before{content:"";width:30px;height:1px;background:var(--pine)}
.section.dark .sec-eyebrow{color:#9FC4B2}
.section.dark .sec-eyebrow::before{background:#9FC4B2}
.sec-head h2{font-size:clamp(28px,3.6vw,42px)}
.sec-head p{font-size:17px;color:var(--ink-2);margin-top:16px}
.section.dark .sec-head p{color:#C8D4CB}

/* 问题 */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pain-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;position:relative}
.pain-num{font-family:'Noto Serif SC',serif;font-size:15px;color:var(--pine);letter-spacing:.1em;margin-bottom:14px}
.pain-card h3{font-size:19px;margin-bottom:10px}
.pain-card p{font-size:14.5px;color:var(--ink-2)}

/* 方案 */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:40px}
.sol-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;display:flex;flex-direction:column;gap:14px;transition:transform .2s,box-shadow .2s}
.sol-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.sol-icon{width:52px;height:52px;border-radius:14px;background:var(--pine-soft);color:var(--pine);display:grid;place-items:center}
.sol-icon svg{width:26px;height:26px}
.sol-card h3{font-size:19px}
.sol-card p{font-size:14.5px;color:var(--ink-2)}
.sol-art{border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.sol-art img{width:100%;height:auto}

/* 工作原理 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;margin:30px 0 50px}
.step{position:relative;padding:0 16px}
.step::after{content:"";position:absolute;top:22px;left:calc(100% - 2px);width:calc(100% - 20px);height:1px;background:var(--line)}
.step:last-child::after{display:none}
.step-dot{width:44px;height:44px;border-radius:50%;background:var(--pine);color:#F6F2EA;display:grid;place-items:center;font-family:'Noto Serif SC',serif;font-weight:600;font-size:16px;margin-bottom:18px;position:relative;z-index:1}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--ink-2)}
.steps-art{border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.steps-art img{width:100%;height:auto}

/* 差异化 */
.diff-list{display:flex;flex-direction:column;gap:16px}
.diff-row{display:grid;grid-template-columns:1fr 90px 1.6fr;gap:20px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.diff-old{font-size:15px;color:var(--ink-2)}
.diff-old b{display:block;font-size:16px;color:var(--ink);margin-bottom:4px;font-weight:600}
.diff-vs{font-size:13px;color:var(--muted);text-align:center;letter-spacing:.08em}
.diff-new{font-size:15px;color:var(--pine-deep);background:var(--pine-faint);border-radius:14px;padding:16px 18px;border:1px solid #CFE0D6}
.diff-new b{display:block;font-size:16px;color:var(--pine);margin-bottom:4px;font-weight:600}

/* 数据 */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.stat{background:rgba(246,242,234,.06);border:1px solid rgba(237,233,224,.18);border-radius:var(--radius);padding:36px 30px}
.stat-num{font-family:'Noto Serif SC',serif;font-size:52px;font-weight:900;color:#F3EFE6;line-height:1}
.stat-num .unit{font-size:22px}
.stat-label{margin-top:14px;font-size:15px;color:#C8D4CB}
.stat-src{margin-top:8px;font-size:11.5px;color:#8FA699}

/* 行业 */
.ind-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.ind-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;display:flex;gap:18px;align-items:flex-start}
.ind-icon{width:46px;height:46px;flex:none;border-radius:12px;background:var(--pine-soft);color:var(--pine);display:grid;place-items:center}
.ind-icon svg{width:22px;height:22px}
.ind-card h3{font-size:18px;margin-bottom:6px}
.ind-card p{font-size:14px;color:var(--ink-2)}

/* CTA */
.cta{background:var(--pine-deep);color:#EDE9E0;text-align:center;padding:110px 0}
.cta h2{font-size:clamp(28px,4vw,46px);max-width:760px;margin:0 auto 18px}
.cta p{font-size:17px;color:#C8D4CB;max-width:560px;margin:0 auto 36px}
.cta .btn{background:#F3EFE6;color:var(--pine-deep)}
.cta .btn:hover{background:#fff}
.cta .btn.ghost{background:transparent;color:#EDE9E0;border:1px solid rgba(237,233,224,.4)}
.cta .btn.ghost:hover{border-color:#EDE9E0}

/* 关于我们 */
.about-hero{padding:96px 0 60px}
.about-mission{
  max-width:900px;margin:0 auto;text-align:center;padding:70px 40px;
  background:var(--pine-deep);color:#EDE9E0;border-radius:28px;position:relative;overflow:hidden;
}
.about-mission .quote-mark{font-family:'Noto Serif SC',serif;font-size:80px;color:#9FC4B2;line-height:1;height:60px}
.about-mission h2{font-size:clamp(26px,3.4vw,38px);max-width:720px;margin:10px auto 18px}
.about-mission p{color:#C8D4CB;max-width:640px;margin:0 auto;font-size:16px}
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:56px}
.about-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px}
.about-card h3{font-size:19px;margin-bottom:10px;color:var(--pine)}
.about-card p{font-size:14.5px;color:var(--ink-2)}
.about-story{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;margin-top:70px}
.about-story h3{font-size:26px;margin-bottom:16px}
.about-story p{font-size:15.5px;color:var(--ink-2);margin-bottom:14px}
.about-story b{color:var(--pine)}
.about-principles{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prin{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px}
.prin .prin-num{font-family:'Noto Serif SC',serif;font-size:14px;color:var(--pine);letter-spacing:.1em;margin-bottom:10px}
.prin h3{font-size:18px;margin-bottom:8px}
.prin p{font-size:14px;color:var(--ink-2)}
.about-note{margin-top:56px;padding:26px 30px;border:1px dashed var(--line);border-radius:var(--radius);background:var(--card);font-size:14px;color:var(--ink-2)}
.about-note b{color:var(--pine)}

/* 页脚 */
.footer{border-top:1px solid var(--line);padding:40px 0}
.foot-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot-links{display:flex;gap:26px;font-size:14px;color:var(--ink-2)}
.foot-links a:hover{color:var(--pine)}

/* 响应式 */
@media (max-width:920px){
  .hero-grid,.about-story{grid-template-columns:1fr;gap:36px}
  .nav-links{display:none}
  .pain-grid,.sol-grid,.stats,.about-grid,.about-principles{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:26px;margin:20px 0 40px}
  .step::after{display:none}
  .diff-row{grid-template-columns:1fr;gap:14px}
  .diff-vs{text-align:left}
  .ind-grid{grid-template-columns:1fr}
  .section{padding:70px 0}
}
@media (max-width:560px){
  .wrap{padding:0 20px}
  .brand{font-size:17px}
  .lang-link{padding:5px 9px;font-size:12px}
  .nav-cta{display:none}
  .hero{padding:60px 0 50px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}