:root{--cream:#FFFBF5;--cream2:#FFF6EA;--candy:#FF7A45;--coral:#FF6B61;--sky:#67B9DB;--lemon:#FFD96A;--ink:#352C26;--soft:#7B6B60;--white:#fff;--line:rgba(74,55,40,.08);--shadow:0 16px 44px rgba(80,56,37,.075);--font:"Baloo 2","ZCOOL KuaiLe","PingFang SC","Microsoft YaHei",system-ui,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);color:var(--ink);background:radial-gradient(circle at 82% 7%,rgba(103,185,219,.09),transparent 23%),radial-gradient(circle at 14% 18%,rgba(255,217,106,.12),transparent 20%),var(--cream);line-height:1.75;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:radial-gradient(rgba(255,122,69,.045) 1.3px,transparent 1.3px);background-size:34px 34px;z-index:0}header,main,footer{position:relative;z-index:1}a{color:inherit;text-decoration:none}.wrap{max-width:1120px;margin:auto;padding:0 28px}
header{position:sticky;top:0;z-index:80;background:rgba(255,251,245,.88);backdrop-filter:blur(18px) saturate(135%);border-bottom:1px solid rgba(74,55,40,.07)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:20px}.logo svg{width:34px;height:34px}.nav-links{display:flex;gap:30px;list-style:none}.nav-links a{font-size:14px;font-weight:700;color:#51453d;position:relative;padding:4px 0}.nav-links a:after{content:"";position:absolute;left:0;bottom:-7px;width:0;height:2px;background:var(--candy);border-radius:3px;transition:.2s}.nav-links a:hover:after,.nav-links a.active:after{width:100%}.nav-links a.active{color:var(--candy)}.nav-download{display:inline-flex;padding:10px 20px;border-radius:999px;background:#fff;color:var(--candy);border:1px solid rgba(255,122,69,.22);font-size:14px;font-weight:800;box-shadow:0 8px 20px rgba(74,55,40,.05)}.burger{display:none;background:none;border:0;padding:8px}.burger svg{width:28px;height:28px;stroke:var(--ink)}
.breadcrumb{padding:22px 0 0;color:#8b786a;font-size:13px}.breadcrumb a:hover{color:var(--candy)}.breadcrumb span{margin:0 7px;color:#b7a79a}.hero{padding:68px 0 46px}.eyebrow{display:inline-flex;padding:6px 14px;border-radius:999px;background:rgba(255,217,106,.45);border:1px solid rgba(227,185,0,.12);font-size:13px;font-weight:800;margin-bottom:17px}.hero h1{max-width:900px;font-size:clamp(38px,5.2vw,62px);line-height:1.14;letter-spacing:-1.2px;margin-bottom:20px}.hero p{max-width:760px;color:var(--soft);font-size:17px;line-height:1.9}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 22px;font-weight:850;transition:.2s;border:1px solid transparent}.btn-primary{background:linear-gradient(135deg,#ff8654,#ff6e49);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.2)}.btn-secondary{background:#fff;border-color:rgba(255,122,69,.22);color:var(--candy)}.btn:hover{transform:translateY(-2px)}
.quickfacts{counter-reset:quickfact;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:stretch;margin:8px auto 54px}.fact{counter-increment:quickfact;position:relative;min-width:0;min-height:112px;background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:18px;padding:22px 20px 20px 68px;box-shadow:0 10px 26px rgba(80,56,37,.045);display:flex;flex-direction:column;justify-content:flex-start;align-items:stretch;text-align:left}.fact:before{content:counter(quickfact);position:absolute;left:20px;top:24px;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--candy);color:#fff;font-size:13px;font-weight:900;line-height:32px;box-shadow:0 6px 14px rgba(255,122,69,.18)}.fact b{display:block;width:100%;min-height:24px;font-size:14px;line-height:24px;margin:0 0 4px;font-weight:900}.fact span{display:block;width:100%;font-size:13px;line-height:21px;color:var(--soft);margin:0}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:38px;align-items:start;padding-bottom:88px}.article{background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:28px;padding:38px;box-shadow:var(--shadow)}.article h2{font-size:27px;line-height:1.35;margin:38px 0 14px}.article h2:first-child{margin-top:0}.article h3{font-size:19px;margin:24px 0 8px}.article p{color:#584b42;margin:12px 0;line-height:1.92}.article ul,.article ol{padding-left:22px;margin:12px 0 18px;color:#584b42}.article li{margin:7px 0}.note{margin:22px 0;padding:18px 20px;border-radius:17px;background:#fff6e8;border:1px solid rgba(255,122,69,.14);color:#665447}.answer{font-size:18px;color:#44382f!important;border-left:4px solid var(--candy);padding-left:16px;margin-bottom:24px!important}.compare{width:100%;border-collapse:separate;border-spacing:0;margin:18px 0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}.compare th,.compare td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}.compare th{background:#fff6e9}.compare tr:last-child td{border-bottom:0}.steps{counter-reset:step;display:grid;gap:13px;margin:17px 0}.step{position:relative;padding:17px 18px 17px 54px;background:#fff;border:1px solid var(--line);border-radius:16px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:15px;top:15px;width:27px;height:27px;border-radius:50%;display:grid;place-items:center;background:var(--candy);color:#fff;font-size:13px;font-weight:900}
.side{position:sticky;top:100px;display:grid;gap:15px}.side-card{background:rgba(255,255,255,.8);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 10px 28px rgba(80,56,37,.045)}.side-card h3{font-size:16px;margin-bottom:10px}.side-card p{font-size:13px;color:var(--soft);line-height:1.7}.side-links{display:grid;gap:7px;margin-top:10px}.side-links a{font-size:13px;color:#5d4b3f;padding:8px 10px;border-radius:11px;background:#fff7ed}.side-links a:hover{color:var(--candy)}
.faq-block{margin-top:42px}.faq-item{border-top:1px solid var(--line);padding:18px 0}.faq-item h3{margin:0 0 7px;font-size:17px}.faq-item p{margin:0;color:#67564a}.related{margin-top:42px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:15px}.related a{display:block;background:#fff;border:1px solid var(--line);border-radius:15px;padding:15px;font-weight:800;font-size:14px}.related a small{display:block;margin-top:4px;color:var(--soft);font-weight:500;line-height:1.6}.related a:hover{border-color:rgba(255,122,69,.35);transform:translateY(-2px)}
footer{background:#392f29;color:#efe3d5;padding:56px 0 28px}.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}.foot-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:900;color:#fff;margin-bottom:13px}.foot-logo svg{width:34px;height:34px}footer p,footer a{font-size:13px;color:#cbbba8}footer h4{font-size:14px;color:#fff;margin-bottom:12px}.foot-col a{display:block;padding:4px 0}.foot-col a:hover{color:var(--lemon)}.foot-bottom{margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:12px;color:#9a8a78;text-align:center}
@media(max-width:900px){.nav-links{display:none;position:absolute;top:78px;left:0;right:0;background:var(--cream);flex-direction:column;gap:0;padding:10px 24px 18px;border-bottom:1px solid var(--line)}.nav-links.show{display:flex}.nav-links a{display:block;padding:11px 0}.burger{display:block}.nav-download{display:none}.content-layout{grid-template-columns:1fr}.side{position:static}.quickfacts{grid-template-columns:1fr;gap:12px}.fact{min-height:96px;padding-top:20px;padding-bottom:18px}.fact:before{top:22px}.related-grid{grid-template-columns:1fr 1fr}.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.wrap{padding:0 20px}.hero{padding-top:48px}.hero h1{font-size:38px}.article{padding:25px 20px;border-radius:22px}.related-grid{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}.compare{display:block;overflow-x:auto}}


/* Brand Search Traffic V2: differentiated intent layouts */
.intent-nav{display:flex;flex-wrap:wrap;gap:10px;margin:18px auto 42px}.intent-nav a{display:inline-flex;align-items:center;padding:9px 14px;border:1px solid var(--line);background:#fff;border-radius:999px;font-size:13px;font-weight:800;color:#5c4b40;transition:.18s}.intent-nav a:hover{transform:translateY(-1px);border-color:rgba(255,122,69,.35);color:var(--candy)}
.brand-verdict{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(260px,.6fr);gap:18px;margin:10px 0 28px}.brand-verdict>div{border:1px solid var(--line);border-radius:20px;padding:22px;background:#fff}.brand-verdict .primary{background:linear-gradient(135deg,#fff8ec,#fff);}.brand-verdict h3{margin:0 0 8px;font-size:20px}.brand-verdict p{margin:0;color:#5b4c42;line-height:1.8}
.symptom-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:16px 0 28px}.symptom{display:block;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff}.symptom b{display:block;font-size:16px;margin-bottom:6px}.symptom span{display:block;color:var(--soft);font-size:13px;line-height:1.7}.symptom:hover{border-color:rgba(255,122,69,.35);transform:translateY(-1px)}
.decision-box{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0 28px}.decision-box>div{padding:22px;border-radius:20px;border:1px solid var(--line);background:#fff}.decision-box .keep{background:#f8fbf5}.decision-box .switch{background:#fff6e9}.decision-box h3{margin:0 0 9px}.decision-box ul{margin:8px 0 0;padding-left:19px}.decision-box li{margin:6px 0;color:#5b4c42}
.compare-panel{display:grid;grid-template-columns:170px 1fr 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden;margin:18px 0 28px;background:#fff}.compare-panel>div{padding:14px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);line-height:1.65}.compare-panel>div:nth-child(3n){border-right:0}.compare-panel .head{font-weight:900;background:#fff6e9}.compare-panel .label{font-weight:850;background:#fffaf3}.compare-panel .last{border-bottom:0}
.source-check{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:18px 0 28px}.source-check>div{border:1px solid var(--line);border-radius:18px;background:#fff;padding:19px}.source-check b{display:block;margin-bottom:6px}.source-check span{color:var(--soft);font-size:13px;line-height:1.75}
.brand-hub-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:20px 0}.brand-hub-card{display:block;background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;transition:.18s}.brand-hub-card:hover{transform:translateY(-2px);border-color:rgba(255,122,69,.35)}.brand-hub-card b{display:block;font-size:17px;margin-bottom:6px}.brand-hub-card span{color:var(--soft);font-size:13px;line-height:1.7}
.search-path{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:18px 0 28px}.search-path a{display:flex;min-height:72px;align-items:center;justify-content:center;text-align:center;padding:12px;border:1px solid var(--line);border-radius:16px;background:#fff;font-weight:850;font-size:13px}.search-path a:hover{border-color:rgba(255,122,69,.35);color:var(--candy)}
.brand-page .hero{padding-bottom:30px}.fault-page .hero{background:linear-gradient(180deg,rgba(255,246,234,.55),transparent)}.alternative-page .hero{background:linear-gradient(180deg,rgba(255,217,106,.17),transparent)}.comparison-page .hero{background:linear-gradient(180deg,rgba(103,185,219,.10),transparent)}.download-guide-page .hero{background:linear-gradient(180deg,rgba(255,122,69,.08),transparent)}
@media(max-width:900px){.brand-verdict,.decision-box{grid-template-columns:1fr}.source-check,.brand-hub-grid{grid-template-columns:1fr 1fr}.search-path{grid-template-columns:1fr 1fr}.compare-panel{grid-template-columns:120px 1fr 1fr}}
@media(max-width:560px){.symptom-grid,.source-check,.brand-hub-grid{grid-template-columns:1fr}.search-path{grid-template-columns:1fr}.compare-panel{font-size:13px;grid-template-columns:90px 1fr 1fr}.compare-panel>div{padding:10px 8px}}