:root{--primary: #2563eb;--primary-dark: #1d4ed8;--primary-soft: #dbeafe;--accent: #f97316;--ink: #0f172a;--muted: #64748b;--bg: #ffffff;--bg-soft: #f4f7fd;--border: #e2e8f0;--radius: 14px;--shadow: 0 10px 30px rgba(15, 23, 42, .08);--shadow-lg: 0 20px 50px rgba(37, 99, 235, .15)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.container{max-width:1160px;margin:0 auto;padding:0 24px}.hero__grid>*,.split>*,.contact-grid>*,.skill-grid>*,.template-grid>*{min-width:0}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap}.btn--primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 8px 20px #2563eb59}.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px #2563eb73}.btn--ghost{border-color:var(--primary);color:var(--primary);background:#fff}.btn--ghost:hover{background:var(--primary-soft)}.btn--outline{border-color:var(--border);color:var(--ink);background:#fff}.btn--outline:hover{border-color:var(--primary);color:var(--primary)}.btn--sm{padding:8px 18px;font-size:13px}.btn--lg{padding:14px 32px;font-size:16px}.btn--block{width:100%}.btn:disabled{opacity:.6;cursor:not-allowed}.badge{display:inline-block;padding:6px 16px;border-radius:999px;font-size:13px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-dark));margin-bottom:18px}.badge--soft{color:var(--primary);background:var(--primary-soft)}.gradient-text{background:linear-gradient(120deg,var(--primary),#60a5fa 60%,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.section{padding:96px 0}.section--soft{background:var(--bg-soft)}.section__head{text-align:center;max-width:720px;margin:0 auto 56px}.section__title{font-size:clamp(1.6rem,3vw,2.3rem);line-height:1.35;margin-bottom:14px}.section__title--left{text-align:left}.section__desc{color:var(--muted);font-size:16px}.section__desc--left{text-align:left}.muted-center{text-align:center;color:var(--muted);padding:40px 0}.header{position:sticky;top:0;z-index:100;background:#ffffffd9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:all .3s ease}.header--scrolled{border-bottom-color:var(--border);box-shadow:0 4px 20px #0f172a0f}.header__inner{display:flex;align-items:center;gap:36px;height:72px}.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}.logo__img{width:46px;height:46px;object-fit:contain;flex-shrink:0}.logo__text{font-size:19px;font-weight:700;display:flex;flex-direction:column;line-height:1.25}.logo__text em{font-style:normal;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.5px}.nav{display:flex;gap:4px;margin-left:auto}.nav__link{padding:8px 14px;border-radius:8px;font-size:15px;color:#334155;transition:all .2s ease}.nav__link:hover{color:var(--primary);background:var(--primary-soft)}.hero{position:relative;padding:88px 0 72px;background:radial-gradient(600px 300px at 85% 10%,rgba(96,165,250,.18),transparent 70%),radial-gradient(500px 260px at 8% 90%,rgba(249,115,22,.08),transparent 70%),linear-gradient(180deg,#f0f6ff,#fff);overflow:hidden}.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.hero__title{font-size:clamp(2rem,4.2vw,3.1rem);line-height:1.28;letter-spacing:-.5px;margin-bottom:20px}.hero__desc{color:var(--muted);font-size:17px;margin-bottom:30px;max-width:540px}.hero__actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:26px}.hero__points{list-style:none;display:flex;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:14px}.hero__media{position:relative}.hero__media img{border-radius:20px;box-shadow:var(--shadow-lg);aspect-ratio:3 / 2;object-fit:cover;width:100%;background:#eef2f9}.float-card{position:absolute;background:#fff;border-radius:14px;padding:14px 20px;box-shadow:var(--shadow);display:flex;flex-direction:column;animation:float 4s ease-in-out infinite}.float-card strong{font-size:22px;color:var(--primary)}.float-card strong span{font-size:13px;font-weight:500;color:var(--muted)}.float-card small{color:var(--muted);font-size:12px}.float-card--tl{top:-18px;left:-14px}.float-card--br{bottom:-18px;right:-10px;animation-delay:2s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.stats-strip{margin-top:64px;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.stats-strip__item{padding:26px 16px;text-align:center;border-right:1px solid var(--border)}.stats-strip__item:last-child{border-right:none}.stats-strip__item strong{display:block;font-size:22px;color:var(--primary);margin-bottom:4px}.stats-strip__item span{font-size:13px;color:var(--muted)}.skill-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.skill-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 26px 30px;transition:all .3s 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var(--border);border-radius:12px;margin-bottom:14px;transition:all .25s ease}.contact-item:hover{border-color:var(--primary);box-shadow:0 6px 16px #2563eb1f}.contact-item__icon{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;font-size:18px;background:var(--primary-soft);flex-shrink:0}.contact-item strong{display:block;font-size:13px;color:var(--muted)}.contact-item a,.contact-item__wechat{font-size:16px;font-weight:600;color:var(--primary)}.qr-box{margin-top:22px;text-align:center}.qr-box img{width:100%;max-width:250px;height:auto;margin:0 auto 10px;border-radius:12px;border:1px solid var(--border)}.qr-box__placeholder{width:150px;height:150px;margin:0 auto 10px;border:2px dashed var(--border);border-radius:12px;display:grid;place-items:center;color:var(--muted);font-size:14px;font-weight:600}.qr-box__placeholder small{font-size:11px;font-weight:400}.trial-form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:34px 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