:root{
  --navy:#102a43;--navy-2:#173f67;--blue:#246b9f;--blue-soft:#edf5fb;
  --orange:#e87924;--orange-dark:#bd5410;--success:#247a5a;
  --ink:#1d2f3d;--muted:#647684;--line:#dce5eb;--paper:#fff;--page:#f5f8fa;
  --radius:16px;--shadow:0 18px 55px rgba(16,42,67,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--page);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7}
body,button,a{font-synthesis:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit}
:focus-visible{outline:3px solid #f4aa68;outline-offset:3px}
.skip-link{position:fixed;left:16px;top:-80px;z-index:100;background:var(--paper);padding:10px 14px;border-radius:8px;box-shadow:var(--shadow)}
.skip-link:focus{top:12px}
.container,.nav-shell{width:min(1240px,calc(100% - 48px));margin:0 auto}
.section{padding:96px 0}
.eyebrow{margin:0 0 10px;color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{color:var(--navy);line-height:1.24;letter-spacing:-.02em}
h1{font-size:clamp(40px,5vw,66px);margin-bottom:24px}
h2{font-size:clamp(30px,3.6vw,46px);margin-bottom:18px}
h3{font-size:22px}
.section-lead{max-width:760px;color:var(--muted);font-size:18px;margin-bottom:40px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.nav-shell{min-height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;color:var(--navy);font-size:19px;font-weight:850;white-space:nowrap}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;color:#fff;background:var(--navy);font-size:14px;letter-spacing:-.04em}
.desktop-nav{display:flex;align-items:center;gap:24px;margin-left:auto;color:#3d5363;font-size:14px;font-weight:650}
.desktop-nav a:hover,.text-link:hover{color:var(--orange-dark)}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:10px}
.text-link{font-size:14px;font-weight:750}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border:1px solid var(--orange);border-radius:10px;background:var(--orange);color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(232,121,36,.2);transition:transform .2s ease,background .2s ease,box-shadow .2s ease}
.button:hover{background:var(--orange-dark);border-color:var(--orange-dark);transform:translateY(-1px);box-shadow:0 14px 28px rgba(189,84,16,.25)}
.button-small{min-height:40px;padding:0 16px;font-size:14px}
.button-ghost,.button-outline{background:#fff;color:var(--navy);border-color:#bdcbd5;box-shadow:none}
.button-ghost:hover,.button-outline:hover{background:var(--blue-soft);color:var(--navy);border-color:#9fb5c4;box-shadow:none}

.hero{overflow:hidden;padding-top:82px;background:linear-gradient(180deg,#fff 0%,#f5f9fc 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(520px,1.08fr);align-items:center;gap:58px}
.hero-lead{max-width:660px;color:#506573;font-size:20px;line-height:1.75}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 18px}
.hero-visual{position:relative;padding:14px;border:1px solid #cad9e3;border-radius:22px;background:#fff;box-shadow:var(--shadow);transform:perspective(1200px) rotateY(-2deg)}
.hero-visual>img{aspect-ratio:16/10;object-fit:cover;object-position:top;border-radius:13px;background:#eaf0f4}
.hero-badge{position:absolute;right:-18px;bottom:22px;display:flex;flex-direction:column;min-width:210px;padding:14px 18px;border-radius:12px;background:var(--navy);color:#fff;box-shadow:0 14px 30px rgba(16,42,67,.25)}
.hero-badge span{color:#82d2b5;font-size:12px;font-weight:800}.hero-badge strong{font-size:14px}
.wechat-cta{display:flex;flex-wrap:wrap;align-items:center;gap:9px}
.wechat-cta>span{color:var(--muted);font-size:13px}.wechat-cta strong{color:var(--navy);font-size:21px;letter-spacing:.03em}.wechat-cta button{padding:6px 11px;border:1px solid #c6d3dc;border-radius:8px;background:#fff;color:var(--navy);cursor:pointer;font-weight:750}.wechat-cta small{width:100%;color:var(--muted)}
.wechat-cta.compact{display:inline-flex;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff}.wechat-cta.compact small{width:auto}
[data-copy-status]{min-height:24px;margin:8px 0 0;color:var(--success);font-size:14px;font-weight:700}
.proof-strip{display:grid;grid-template-columns:repeat(4,1fr);margin-top:72px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 10px 30px rgba(16,42,67,.06)}
.proof-strip>div{display:flex;align-items:baseline;justify-content:center;gap:9px;padding:20px;border-right:1px solid var(--line)}.proof-strip>div:last-child{border-right:0}.proof-strip strong{color:var(--navy);font-size:24px}.proof-strip span{color:var(--muted);font-size:14px}

.problems{background:#fff}
.problem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.problem-grid article{position:relative;min-height:220px;padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,#fff,#f8fbfd)}
.problem-grid article>span,.feature-no{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:9px;background:var(--blue-soft);color:var(--blue);font-size:13px;font-weight:850}
.problem-grid h3{margin:48px 0 8px}.problem-grid p{color:var(--muted);margin:0}

.workflow-section{background:var(--navy);color:#dbe8f2}.workflow-section h2{color:#fff}.workflow-section .eyebrow{color:#ffb072}.workflow-section .section-lead{color:#b8cbd9}
.workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;padding:0;margin:42px 0;list-style:none}
.workflow li{position:relative;display:flex;flex-direction:column;min-height:184px;padding:20px;border:1px solid rgba(255,255,255,.13);border-radius:14px;background:rgba(255,255,255,.055)}
.workflow li:not(:last-child)::after{content:"→";position:absolute;right:-17px;top:70px;z-index:2;color:#ffae6c;font-size:22px}
.workflow b{display:grid;place-items:center;width:32px;height:32px;margin-bottom:22px;border-radius:50%;background:var(--orange);color:#fff}.workflow strong{color:#fff;font-size:17px}.workflow span{margin-top:7px;color:#b8cbd9;font-size:13px}
.workflow-media{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.workflow-media figure{margin:0;padding:8px;border:1px solid rgba(255,255,255,.15);border-radius:14px;background:rgba(255,255,255,.06)}.workflow-media img{aspect-ratio:16/10;object-fit:cover;object-position:top;border-radius:9px;background:#dce5eb}.workflow-media figcaption{padding:11px 5px 4px;color:#dbe8f2;font-size:13px;font-weight:700}

.features{background:#fff}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:38px}.feature-grid article{padding:34px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 10px 30px rgba(16,42,67,.05)}.feature-grid h3{margin:26px 0 12px}.feature-grid p{color:var(--muted)}.feature-grid strong{color:var(--navy-2)}code{display:block;padding:12px 14px;border-radius:8px;background:#f2f6f8;color:#29495f;white-space:normal;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}

.case-section{background:#eef4f7}.case-product{display:grid;grid-template-columns:250px 1fr;gap:34px;padding:30px;border:1px solid #d4e1e8;border-radius:18px;background:#fff;box-shadow:var(--shadow)}.case-image{display:grid;place-items:center;border-radius:14px;background:#f7f9fa}.case-image img{max-height:240px;object-fit:contain}.case-label{margin-bottom:6px;color:var(--success);font-size:13px;font-weight:800}.case-copy h3{max-width:850px;margin-bottom:10px}.case-copy>a{display:inline-block;margin-bottom:25px;color:var(--blue);font-weight:750}
.metric-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;margin:0;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden}.metric-grid>div{padding:13px;background:#f9fbfc}.metric-grid dt{color:var(--muted);font-size:12px}.metric-grid dd{margin:4px 0 0;color:var(--navy);font-size:16px;font-weight:850}
.case-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;margin-top:18px}.panel{padding:28px;border:1px solid #d4e1e8;border-radius:16px;background:#fff}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px}.panel-head>div{display:flex;align-items:center;gap:10px}.panel-head span{display:grid;place-items:center;width:32px;height:32px;border-radius:8px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:850}.panel-head h3{margin:0}.panel-head small{color:var(--muted)}
.history-bars{display:flex;align-items:flex-end;gap:9px;height:180px;padding-top:22px;border-bottom:1px solid var(--line)}.history-bars>div{position:relative;display:flex;flex:1;align-items:flex-end;justify-content:center;height:100%}.history-bars span{width:min(22px,75%);min-height:10px;border-radius:6px 6px 0 0;background:linear-gradient(180deg,#4f93bd,var(--navy-2))}.history-bars small{position:absolute;bottom:-27px;color:var(--muted);font-size:10px}.history-bars b{position:absolute;top:-20px;display:none;color:var(--navy);font-size:10px}.history-bars>div:hover b{display:block}
.traffic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:0}.traffic-grid>div{padding:15px;border-radius:10px;background:#f2f7fa}.traffic-grid dt{color:var(--muted);font-size:12px}.traffic-grid dd{margin:0;color:var(--navy);font-size:25px;font-weight:850}.traffic-grid>div:first-child{grid-column:1/-1;background:var(--navy);color:#fff}.traffic-grid>div:first-child dt{color:#bcd0de}.traffic-grid>div:first-child dd{color:#fff}
.keyword-panel{margin-top:18px}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px}table{width:100%;border-collapse:collapse;min-width:820px}th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:13px}th{background:#f1f6f8;color:#4d6473;font-weight:800}td{color:#425867}tbody tr:last-child td{border-bottom:0}td strong{color:var(--navy)}
.cpc-summary{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:18px;padding:16px;border-radius:10px;background:var(--blue-soft)}.cpc-summary>span{color:var(--blue);font-weight:850}.cpc-summary b{color:var(--navy);font-size:14px}.cpc-summary small{margin-left:auto;color:var(--muted)}
.profit-card{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:36px;margin-top:18px;padding:28px;border-radius:16px;background:var(--navy);color:#dbe8f2}.profit-card h3{margin:5px 0;color:#fff}.profit-card p{margin:0;color:#b8cbd9}.profit-card>div:not(:first-child){min-width:145px;padding-left:25px;border-left:1px solid rgba(255,255,255,.18)}.profit-card small{display:block;color:#a9c0d0}.profit-card strong{display:block;margin-top:3px;color:#ffb072;font-size:30px}.case-note{margin:18px 0 0;color:var(--muted);font-size:14px}

.pricing-section{background:#fff}.pricing-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-items:stretch}.price-card{position:relative;display:flex;flex-direction:column;min-width:0;padding:30px 26px;border:1px solid var(--line);border-radius:18px;background:#fff}.price-card.free-trial{border-color:#9fc8df;background:linear-gradient(180deg,#f4faff 0%,#fff 45%)}.price-card.recommended{border:2px solid var(--orange);box-shadow:0 20px 50px rgba(232,121,36,.13);transform:translateY(-8px)}.recommend-tag,.trial-tag{position:absolute;right:18px;top:16px;padding:4px 9px;border-radius:999px;font-size:12px;font-weight:850}.recommend-tag{background:#fff0e4;color:var(--orange-dark)}.trial-tag{background:#dff1fb;color:var(--blue)}.price-card h3{margin-bottom:24px}.price{margin-bottom:0;color:var(--muted)}.price strong{color:var(--navy);font-size:32px;letter-spacing:-.04em}.price-card ul{display:grid;gap:10px;padding-left:20px;margin:22px 0 30px;color:#506573}.price-card li::marker{color:var(--success)}.price-card .button{margin-top:auto}.plan-note{margin:22px 0 0;color:var(--muted);font-size:13px}

.faq-section{background:#f2f6f8}.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:34px}.faq-grid details{border:1px solid var(--line);border-radius:12px;background:#fff}.faq-grid summary{padding:19px 22px;color:var(--navy);font-weight:800;cursor:pointer}.faq-grid p{padding:0 22px 20px;margin:0;color:var(--muted)}
.site-footer{padding:72px 0 30px;background:#0a2235;color:#bed0dc}.footer-grid{display:grid;grid-template-columns:1fr auto;align-items:center;gap:40px}.footer-brand{color:#ffb072;font-weight:850}.site-footer h2{max-width:700px;margin:10px 0;color:#fff}.footer-cta{min-width:280px;padding:20px;border:1px solid rgba(255,255,255,.15);border-radius:14px;background:rgba(255,255,255,.06)}.footer-cta>span,.footer-cta small{color:#b8cbd9}.footer-cta strong{color:#fff}.footer-bottom{display:flex;align-items:center;gap:22px;margin-top:50px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}.footer-bottom nav{display:flex;flex-wrap:wrap;gap:17px}.footer-bottom>a{margin-left:auto;color:#fff;font-weight:750}.footer-bottom p{margin:0}
.floating-consult{position:fixed;right:22px;bottom:22px;z-index:40;padding:13px 18px;border-radius:999px;background:var(--orange);color:#fff;font-weight:850;box-shadow:0 12px 30px rgba(189,84,16,.35)}.mobile-consult{display:none}

@media (max-width:1020px){
  .desktop-nav{display:none}.hero-grid{grid-template-columns:1fr}.hero-copy{max-width:800px}.hero-visual{transform:none}.problem-grid{grid-template-columns:repeat(2,1fr)}.workflow{grid-template-columns:repeat(5,minmax(170px,1fr));overflow-x:auto;padding-bottom:12px}.workflow-media{grid-template-columns:1fr}.metric-grid{grid-template-columns:repeat(3,1fr)}.case-grid{grid-template-columns:1fr}.pricing-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.price-card{padding:26px}.footer-grid{grid-template-columns:1fr}
}
@media (max-width: 760px){
  .container,.nav-shell{width:min(100% - 28px,1240px)}.section{padding:68px 0}.site-header{position:sticky}.nav-shell{min-height:64px}.brand{font-size:16px}.brand-mark{width:32px;height:32px}.nav-actions .button{display:none}.text-link{font-size:13px}.hero{padding-top:54px}.hero-grid,.feature-grid,.case-grid,.pricing-grid{grid-template-columns:minmax(0,1fr)}.hero-grid{gap:36px}.hero-copy,.hero-visual{min-width:0}.hero-copy h1{overflow-wrap:anywhere}.hero-lead{font-size:17px}.hero-badge{right:8px;bottom:8px;min-width:180px}.proof-strip{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:44px}.proof-strip>div:nth-child(2){border-right:0}.proof-strip>div:nth-child(-n+2){border-bottom:1px solid var(--line)}.proof-strip strong{font-size:20px}.proof-strip span{font-size:12px}.problem-grid{grid-template-columns:1fr}.problem-grid article{min-height:auto}.workflow{grid-template-columns:minmax(0,1fr);overflow:visible}.workflow li{min-height:auto}.workflow li:not(:last-child)::after{content:"↓";right:auto;left:27px;top:auto;bottom:-25px}.workflow-media{grid-template-columns:minmax(0,1fr)}.case-product{grid-template-columns:minmax(0,1fr);padding:20px}.case-image img{max-height:220px}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.panel{padding:20px}.history-bars{gap:4px}.history-bars b{display:none!important}.traffic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.profit-card{grid-template-columns:minmax(0,1fr);gap:18px}.profit-card>div:not(:first-child){padding:14px 0 0;border-left:0;border-top:1px solid rgba(255,255,255,.18)}.price-card.recommended{transform:none}.faq-grid{grid-template-columns:minmax(0,1fr)}.footer-bottom{align-items:flex-start;flex-direction:column}.footer-bottom>a{margin-left:0}.floating-consult{display:none}.mobile-consult{position:fixed;left:12px;right:12px;bottom:10px;z-index:60;display:flex;align-items:center;justify-content:center;min-height:52px;border-radius:12px;background:var(--orange);color:#fff;font-weight:850;box-shadow:0 12px 30px rgba(189,84,16,.35)}body{padding-bottom:72px}
}
@media (max-width:420px){h1{font-size:38px}.hero-actions{flex-direction:column}.hero-actions .button{width:100%}.wechat-cta.compact small{width:100%}.proof-strip>div{flex-direction:column;align-items:center;gap:0}.metric-grid{grid-template-columns:1fr 1fr}.cpc-summary{align-items:flex-start;flex-direction:column}.cpc-summary small{margin-left:0}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}