:root{--navy:#071423;--navy2:#0d2237;--red:#b12632;--red2:#d43a47;--ink:#102033;--muted:#657487;--line:#dbe2e9;--paper:#f4f6f8;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);background:#fff}.noise{position:fixed;inset:0;pointer-events:none;opacity:.035;z-index:99;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E")}.nav{height:86px;display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,calc((100% - 1440px)/2));border-bottom:1px solid rgba(0,0,0,.07);position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);z-index:50}.brand{display:flex;gap:12px;align-items:center;color:inherit;text-decoration:none}.brand-mark{width:44px;height:44px;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:900;letter-spacing:-2px}.brand b,.brand small{display:block}.brand b{font-size:18px;letter-spacing:.08em}.brand small{font-size:9px;letter-spacing:.28em;color:#7b8794}.nav nav{display:flex;gap:28px}.nav nav a,.lang{color:#21354a;text-decoration:none;font-weight:600;font-size:14px}.nav-actions{display:flex;gap:18px;align-items:center}.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border:1px solid transparent;padding:13px 20px;font-weight:800;cursor:pointer;font:inherit}.btn-red{background:var(--red);color:#fff;box-shadow:0 12px 30px rgba(177,38,50,.18)}.btn-red:hover{background:var(--red2);transform:translateY(-2px)}.btn-ghost{border-color:#aab5c0;color:var(--ink);background:transparent}.btn-light{background:#fff;color:var(--red)}.btn-xl{padding:17px 25px}.hero{background:linear-gradient(120deg,#f8f9fa 0%,#eef2f6 58%,#e8edf3 100%);min-height:690px;display:flex;align-items:center;overflow:hidden;position:relative}.hero:before{content:"";position:absolute;width:760px;height:760px;border:1px solid rgba(177,38,50,.12);border-radius:50%;right:-230px;top:-180px;box-shadow:0 0 0 120px rgba(177,38,50,.025),0 0 0 240px rgba(177,38,50,.02)}.hero-grid{width:min(1500px,90vw);margin:auto;display:grid;grid-template-columns:1.05fr .95fr;gap:4vw;align-items:center}.kicker,.eyebrow{font-size:12px;letter-spacing:.2em;font-weight:800;text-transform:uppercase;color:var(--red)}.hero h1,.page-hero h1,.product-hero h1{font-size:clamp(46px,5.4vw,84px);line-height:.96;letter-spacing:-.055em;margin:20px 0 26px;color:var(--navy)}.hero h1 em{font-style:normal;color:var(--red)}.hero p,.page-hero p,.product-hero p{font-size:18px;line-height:1.8;color:#596b7c;max-width:760px}.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}.trust-row{display:flex;gap:20px;flex-wrap:wrap;color:#69798a;font-size:12px;font-weight:700}.trust-row span:before{content:'✓';color:var(--red);margin-right:7px}.hero-machine{position:relative;min-height:480px;display:grid;place-items:center}.hero-machine img{width:105%;max-height:540px;object-fit:contain;position:relative;z-index:2;filter:drop-shadow(0 40px 45px rgba(15,31,50,.22))}.orb{position:absolute;width:390px;height:390px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#fff,#d9e0e7 58%,#c3ccd6);box-shadow:inset 0 0 70px #fff,0 40px 90px rgba(17,35,54,.12);animation:float 6s ease-in-out infinite}.metric{position:absolute;background:#fff;border:1px solid #e1e7ed;padding:14px 18px;z-index:3;box-shadow:0 20px 50px rgba(10,25,43,.12)}.metric b,.metric small{display:block}.metric b{font-size:22px;color:var(--red)}.metric small{color:#758393;font-size:10px}.metric-a{left:0;bottom:68px}.metric-b{right:0;top:80px}.strip{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line);background:#fff;padding-inline:max(5vw,calc((100% - 1440px)/2))}.strip div{padding:24px 0;border-right:1px solid var(--line);display:flex;gap:14px;align-items:center}.strip b{color:var(--red)}.strip span{font-size:13px;font-weight:700}.section{width:min(1440px,90vw);margin:auto;padding:100px 0}.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:44px}.section-head h2,.split h2,.dark-zone h2,.final-cta h2{font-size:clamp(34px,4vw,62px);line-height:1.05;letter-spacing:-.045em;margin:10px 0;color:var(--navy)}.section-head a{color:var(--red);font-weight:800;text-decoration:none}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.product-card{color:inherit;text-decoration:none;border:1px solid var(--line);background:#fff;padding:14px;transition:.35s}.product-card:hover{transform:translateY(-8px);box-shadow:0 28px 60px rgba(14,31,49,.12);border-color:#c7d0da}.img-wrap{height:230px;background:linear-gradient(145deg,#f7f8f9,#e9edf2);display:grid;place-items:center;overflow:hidden}.img-wrap img{width:100%;height:100%;object-fit:contain;transition:.5s}.product-card:hover img{transform:scale(1.05)}.product-card small{display:block;color:#8a98a6;margin-top:18px}.product-card h3{font-size:20px;margin:7px 0}.product-card p{font-size:13px;line-height:1.65;color:#6b7988;min-height:63px}.product-card>span{color:var(--red);font-weight:800;font-size:13px}.dark-zone{background:var(--navy);color:#d6e0e9;position:relative;overflow:hidden}.dark-zone:after{content:attr(data-brand);font-weight:900;font-size:16vw;position:absolute;right:-2vw;bottom:-6vw;color:rgba(255,255,255,.025);letter-spacing:-.05em}.dark-zone h2{color:#fff}.eyebrow.red{color:#ef4d59}.market-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:#2b3a4b;border:1px solid #2b3a4b}.market-card{background:#0c1b2b;padding:30px;color:#fff;text-decoration:none;min-height:280px;display:flex;flex-direction:column;transition:.3s}.market-card:hover{background:#132a42;transform:translateY(-6px)}.market-card>span{color:#ef4d59;font-weight:900}.market-card h3{font-size:22px;margin-top:auto}.market-card p{font-size:13px;line-height:1.7;color:#91a1b3}.market-card b{font-size:12px;color:#fff}.split{display:grid;grid-template-columns:1fr 1fr;gap:7vw;align-items:center}.split p{color:#687888;line-height:1.8}.selector-panel{background:var(--navy);padding:24px}.selector-step{display:grid;grid-template-columns:54px 1fr auto;gap:20px;padding:24px;border-bottom:1px solid #26384a;color:#8798aa}.selector-step b{color:#fff}.selector-step.active{background:#12283e;color:#ef4d59}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.guide-card{border:1px solid var(--line);padding:34px;text-decoration:none;color:inherit;min-height:280px;transition:.3s}.guide-card:hover{background:var(--paper);transform:translateY(-5px)}.guide-card>span{color:var(--red);font-size:11px;font-weight:800;text-transform:uppercase}.guide-card h3{font-size:24px;line-height:1.2}.guide-card p{color:#6d7b89;line-height:1.7}.guide-card b{font-size:12px}.final-cta{background:var(--red);color:#fff;padding:70px max(5vw,calc((100% - 1440px)/2));display:flex;justify-content:space-between;align-items:center;gap:40px}.final-cta h2{color:#fff;max-width:900px}.final-cta p{max-width:760px;line-height:1.7}.page-hero{padding:120px max(5vw,calc((100% - 1440px)/2)) 70px;text-align:center;background:linear-gradient(180deg,#f5f7f9,#fff)}.page-hero.left{text-align:left}.product-hero{width:min(1440px,90vw);margin:auto;padding:100px 0;display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:center}.detail-img{background:#f2f4f7;padding:40px}.detail-img img{width:100%;max-height:520px;object-fit:contain}.quick{width:min(1200px,86vw);margin:0 auto 50px;background:#f4f6f8;border-left:5px solid var(--red);padding:35px 40px}.quick span{color:var(--red);font-size:11px;font-weight:900;letter-spacing:.2em}.quick p{font-size:21px;line-height:1.65;margin-bottom:0}.spec-card{border:1px solid var(--line);padding:32px}.spec-card div{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:16px 0}.spec-card span{color:#758394}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.feature-grid>div{border:1px solid #283a4d;padding:30px}.feature-grid b{color:#ef4d59}.feature-grid h3{color:#fff}.feature-grid p{color:#91a2b3;line-height:1.7}.prose{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:70px}.prose>div{font-size:17px;line-height:1.85;color:#4f6173}.prose h2{font-size:36px;color:var(--navy);margin-top:48px}.prose h3{font-size:24px}.prose table{width:100%;border-collapse:collapse}.prose td,.prose th{padding:14px;border:1px solid var(--line)}.sticky-card{position:sticky;top:120px;background:var(--navy);color:#fff;padding:30px}.sticky-card span{font-size:10px;color:#ef4d59;font-weight:900}.sticky-card h3{font-size:28px}.sticky-card p{color:#a9b5c0}.rfq-form{max-width:1050px;margin:auto;border:1px solid var(--line);padding:45px}.form-head{display:flex;align-items:center;gap:15px;border-bottom:1px solid var(--line);margin:24px 0}.form-head b{color:var(--red)}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.rfq-form label{display:flex;flex-direction:column;gap:8px;font-weight:700;font-size:13px;margin:12px 0}.rfq-form input,.rfq-form select,.rfq-form textarea{padding:14px;border:1px solid #ccd6df;font:inherit;background:#fff}.checks{display:flex;gap:25px;flex-wrap:wrap;margin:15px 0}.checks label{display:flex;flex-direction:row;align-items:center}#formMsg{margin-top:14px}.float-wa{position:fixed;right:24px;bottom:24px;background:#1d9f5f;color:#fff;text-decoration:none;padding:14px 18px;font-weight:800;z-index:60;box-shadow:0 15px 35px rgba(0,0,0,.16)}footer{background:#06111d;color:#9eadbb;padding:65px max(5vw,calc((100% - 1440px)/2));display:grid;grid-template-columns:2fr repeat(3,1fr);gap:50px}footer a{display:block;color:#c6d0d9;text-decoration:none;margin:12px 0;font-size:13px}footer b{color:#fff}.foot{color:#fff}.rtl{direction:rtl}.rtl .nav nav{margin-right:auto;margin-left:30px}.rtl .hero-grid{direction:rtl}.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}.reveal.visible{opacity:1;transform:none}.delay{transition-delay:.14s}@keyframes float{50%{transform:translateY(-16px)}}@media(max-width:1000px){.nav nav{display:none}.nav-actions .lang{display:none}.hero-grid,.product-hero,.split,.prose{grid-template-columns:1fr}.hero{padding:70px 0}.hero-machine{min-height:340px}.hero h1{font-size:50px}.product-grid{grid-template-columns:repeat(2,1fr)}.market-grid{grid-template-columns:repeat(2,1fr)}.guide-grid,.feature-grid{grid-template-columns:1fr 1fr}.strip{grid-template-columns:1fr}.section{padding:70px 0}footer{grid-template-columns:1fr 1fr}}@media(max-width:650px){.nav{height:72px;padding:0 18px}.brand small{display:none}.nav-actions .btn{padding:10px 12px;font-size:11px}.hero-grid,.section,.product-hero{width:88vw}.hero h1,.page-hero h1,.product-hero h1{font-size:42px}.hero-machine{min-height:260px}.metric{display:none}.product-grid,.market-grid,.guide-grid,.feature-grid,.form-grid{grid-template-columns:1fr}.section-head,.final-cta{align-items:flex-start;flex-direction:column}.rfq-form{padding:22px}.quick{padding:25px}.selector-step{grid-template-columns:40px 1fr}.selector-step span{display:none}footer{grid-template-columns:1fr}}
.faq-section{margin-top:60px}.faq-item{border-top:1px solid var(--line);padding:18px 0}.faq-item summary{font-weight:800;cursor:pointer;color:var(--navy)}.faq-item div{padding-top:12px;color:#5d6f80;line-height:1.8}.legal-line{display:block;margin-top:18px;color:#6f8192;font-size:11px;line-height:1.5}

.hp-field{position:absolute!important;left:0!important;top:0!important;width:1px!important;height:1px!important;overflow:hidden!important;clip-path:inset(50%)!important;white-space:nowrap!important;border:0!important;padding:0!important;margin:0!important}.legal-disclosure{margin:32px 0;padding:18px 20px;border:1px solid var(--line);background:#f8fafb;color:#617181;font-size:13px;line-height:1.7}.legal-disclosure.standalone{width:min(1050px,90vw);margin:0 auto 70px}.faq-section{margin-top:55px}.faq-item{border-top:1px solid var(--line);padding:18px 0}.faq-item summary{cursor:pointer;font-weight:800;color:var(--navy)}.faq-item div{padding-top:12px;color:#5f7080}@media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}.reveal{opacity:1!important;transform:none!important}}

/* ============================================================
   本地补丁：RTL（阿语）排版修正
   问题：.float-wa 固定定位在右下角，是 LTR 的写法。阿语页整体镜像后
   内容跑到右侧，悬浮按钮正好压在主转化按钮/产品卡上（实测重叠约 83px）。
   下面按 .rtl 与 [dir=rtl] 双重条件覆盖，保证两种写法都能命中。
   ============================================================ */
.rtl .float-wa,[dir="rtl"] .float-wa{right:auto;left:24px}
.rtl .quick,[dir="rtl"] .quick{border-left:0;border-right:5px solid var(--red)}
.rtl .trust-row span:before,[dir="rtl"] .trust-row span:before{margin-right:0;margin-left:7px}
.rtl .strip div,[dir="rtl"] .strip div{border-right:0;border-left:1px solid var(--line)}
.rtl .strip div:first-child,[dir="rtl"] .strip div:first-child{border-left:0}

/* 本地补丁：hero 图片比容器宽 26px，加约束 */
.hero-machine img{max-width:100%;height:auto}
/* MOBILE_TABLE_FIX */
@media(max-width:650px){.section table,.container table,.quick table,.prose table{font-size:12px}.section th,.section td,.container th,.container td{padding:9px 7px}.section table,.container table,.quick table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.dark-zone:after{font-size:26vw}}

/* ===== CONTENT DESIGN SYSTEM (added) ===== */
/* .container 主题里没定义（模板在用），补上，避免版心丢失 */
.container{width:min(1440px,90vw);margin-inline:auto}

/* 阅读栏 + 侧栏：替代“单栏文字铺满”的观感 */
.content-split{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:64px;align-items:start}
.content-split>*{min-width:0}
.content-split aside{align-self:start;position:sticky;top:110px;height:fit-content}
.content-split aside .sticky-card{position:static;top:auto}
.content-split .article,.content-split aside{min-width:0;max-width:100%}
.article{max-width:840px;font-size:17px;line-height:1.85;color:#4f6173}
.article>h2:first-child{margin-top:0}

/* 层级：小标签 → 标题 → 正文 的关系做清楚 */
.section .eyebrow,.article .eyebrow{display:inline-block;margin-bottom:14px}
.article h2{font-size:clamp(26px,2.4vw,38px);line-height:1.15;letter-spacing:-.035em;color:var(--navy);margin:0 0 22px}
.article h3{font-size:22px;line-height:1.3;color:var(--navy);margin:38px 0 14px}
.article p{margin:0 0 20px}
.article a{color:var(--red);font-weight:700;text-decoration:none;border-bottom:1px solid rgba(177,38,50,.3)}
.article a:hover{border-bottom-color:var(--red)}

/* 区块节奏：统一间距，消掉忽大忽小的空白 */
.article>section,.article>div.block{padding:34px 0;border-top:1px solid var(--line)}
.article>section:first-child,.article>div.block:first-child{border-top:0;padding-top:0}

/* 表格：表头底色 + 斑马纹 + 数字右对齐 + 单位统一 */
.table-wrap{margin:26px 0;border:1px solid var(--line);background:#fff;overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}
.section table,.article table,.prose table{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums}
.section th,.article th,.prose th{background:var(--navy);color:#fff;font-size:11px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;text-align:start;padding:15px 14px;white-space:nowrap}
.section td,.article td,.prose td{padding:14px;border-top:1px solid var(--line);vertical-align:middle;color:#4f6173;line-height:1.5}
.section tbody tr:nth-child(even) td,.article tbody tr:nth-child(even) td{background:#f5f8fa}
.section td:first-child,.article td:first-child{font-weight:700;color:var(--navy);white-space:nowrap}
.section tr:hover td,.article tr:hover td{background:#f4f7fa}
.section td.num,.article td.num{text-align:end;font-variant-numeric:tabular-nums;white-space:nowrap}

/* 列表：红勾清单，替代默认圆点 */
.article ul,.section .check-list{list-style:none;margin:22px 0;padding:0}
.article ul li{position:relative;padding:14px 0;padding-inline-start:34px;border-top:1px solid var(--line);line-height:1.7}
.article ul li:last-child{border-bottom:1px solid var(--line)}
.article ul li:before{content:'\2713';position:absolute;inset-inline-start:0;top:13px;color:var(--red);font-weight:900;font-size:15px}

/* 关键数据行：长正文中间插入的视觉锚点 */
.figure-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:30px 0}
.figure-row>div{background:#fff;padding:22px}
.figure-row b{display:block;font-size:26px;color:var(--red);letter-spacing:-.03em;line-height:1}
.figure-row small{display:block;margin-top:8px;font-size:12px;color:#758394;font-weight:700;line-height:1.5}

/* 侧栏：CTO 卡 + 要点，替代右侧大片空白 */
.content-split aside{display:flex;flex-direction:column;gap:18px}
.rail-card{border:1px solid var(--line);background:var(--paper);padding:26px}
.rail-card h3{font-size:19px;line-height:1.3;margin:10px 0 12px;color:var(--navy)}
.rail-card p{font-size:13.5px;line-height:1.7;color:#6b7988;margin:0 0 16px}
.rail-list{list-style:none;margin:0;padding:0}
.rail-list li{font-size:13px;padding:11px 0;border-top:1px solid var(--line);color:#4f6173;padding-inline-start:22px;position:relative}
.rail-list li:before{content:'\2713';position:absolute;inset-inline-start:0;color:var(--red);font-weight:900}

@media(max-width:1000px){
  .content-split{grid-template-columns:1fr;gap:40px}
  .article{max-width:none}
  .figure-row{grid-template-columns:1fr}
}
@media(max-width:650px){
  .content-split{display:block}
  .table-wrap{width:100%}
  .article{font-size:16px;line-height:1.8}
  .section th,.article th{padding:12px 10px;font-size:10px}
  .section td,.article td{padding:11px 10px;font-size:12.5px}
  .article>section,.article>div.block{padding:26px 0}
}

/* FAQ 区：限宽 + 卡片化 */
.faq-section{width:min(1440px,90vw);margin-inline:auto;padding:90px 0}
.faq-section>h2{font-size:clamp(30px,3.4vw,50px);letter-spacing:-.04em;margin:12px 0 34px;color:var(--navy)}
.faq-item{border:1px solid var(--line);background:#fff;margin-bottom:10px}
.faq-item summary{cursor:pointer;padding:20px 24px;font-weight:700;font-size:16px;color:var(--navy);
  display:flex;justify-content:space-between;align-items:center;gap:20px;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:'+';color:var(--red);font-weight:900;font-size:22px;line-height:1;flex:none}
.faq-item[open] summary:after{content:'\2212'}
.faq-item summary:hover{background:var(--paper)}
.faq-item>div{padding:0 24px 22px;color:#4f6173;font-size:15.5px;line-height:1.8;max-width:1000px}
@media(max-width:650px){
  .faq-section{padding:60px 0}
  .faq-item summary{padding:16px 16px;font-size:14.5px}
  .faq-item>div{padding:0 16px 18px;font-size:14.5px}
}

/* 内页(.prose)网格项防撑破 + 表格滚动容器上推到 1000px */
.prose>*{min-width:0}
@media(max-width:1000px){
  .prose>div,.prose aside{min-width:0;max-width:100%}
  .prose table,.section table,.article table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .prose table th,.prose table td{white-space:normal}
}
@media(max-width:1000px){.content-split aside{position:static;height:auto}}

/* 内容分栏区块：顶部对齐（主题 .split 默认垂直居中，长文本要顶对齐） */
.split.top{align-items:start}
.split.top h2{margin-top:10px}
/* 分栏里的正文列保持舒适行宽 */
.split .article{max-width:640px}
@media(max-width:1000px){.split .article{max-width:none}}
/* 表格容器在分栏内也受限 */
.split .table-wrap{width:100%}
/* QUICK ANSWER 的强调边框在 RTL 下要镜像到右侧 */
.rtl .quick,[dir="rtl"] .quick{border-left:0;border-right:5px solid var(--red)}

/* ===== 竖向节奏与交替底色（消空白横条）===== */
.section{padding:64px 0}
.section-head{margin-bottom:28px}
.faq-section{padding:64px 0;background:var(--paper)}
/* 交替底色：有背景的区块边界清楚，不再是“一片白里浮着内容” */
.zone-tint{background:var(--paper)}
.zone-tint+.zone-tint{background:#fff}
.section+.section{padding-top:64px}
.final-cta{padding:56px max(5vw,calc((100% - 1440px)/2))}
@media(max-width:650px){
  .section{padding:44px 0}
  .section-head{margin-bottom:22px}
  .faq-section{padding:44px 0}
  .final-cta{padding:40px 5vw}
}

/* ===== DESIGN POLISH (整站排版收口) ===== */
/* 1. 阅读宽度：长文不再横跨整页 */
.article p,.prose p,.quick p{max-width:74ch}
.quick{width:min(1080px,88vw);padding:32px 38px}
.quick p{font-size:19px;line-height:1.7}
.quick span{font-size:12px;letter-spacing:.22em;display:block;margin-bottom:12px}

/* 2. 首屏标题：降体量 + 平衡断行（消孤字） */
.hero h1,.page-hero h1,.product-hero h1{font-size:clamp(40px,4.4vw,64px);line-height:1.04;letter-spacing:-.045em;text-wrap:balance}
.hero p,.page-hero p,.product-hero p{font-size:17px;max-width:640px}

/* 3. 区块标题：不再通篇喊话，恢复层级差 */
.section-head h2,.split h2,.dark-zone h2,.final-cta h2{font-size:clamp(30px,3.2vw,48px);line-height:1.1;letter-spacing:-.04em;text-wrap:balance}
.article h2{text-wrap:balance}
.section-head{margin-bottom:34px}

/* 4. 顶部导航：字号与控件分组 */
.nav{height:80px}
.nav nav{gap:30px}
.nav nav a{font-size:15px}
.brand b{font-size:19px}
.brand small{font-size:9.5px;letter-spacing:.2em;color:#8b97a4}
.nav-actions{gap:22px}
.lang{border:1px solid var(--line);padding:10px 14px;font-size:13.5px;font-weight:700;color:#2b3d52}
.lang:hover{border-color:var(--navy);color:var(--navy)}

/* 5. 分栏区块的顶基线对齐，避免两栏呈锯齿 */
.split.top{align-items:start}
.split.top>*{min-width:0}

/* 6. 深色区正文行宽 */
.dark-zone p{max-width:78ch}
.dark-zone li{max-width:78ch}
@media(max-width:1000px){
  .quick{padding:26px 24px}
  .quick p{font-size:17.5px}
  .hero h1,.page-hero h1,.product-hero h1{font-size:clamp(32px,6.4vw,44px)}
  .nav nav{gap:20px}
}

/* ===== 按钮可见性修复 ===== */
/* 正文里的按钮被 .article a{color:var(--red)} 覆盖成红底红字，必须还原文字色 */
.article a.btn,.prose a.btn,.split a.btn,.section a.btn,.quick a.btn,.page-hero a.btn{
  border-bottom:0;text-decoration:none;width:auto}
.article a.btn-red,.prose a.btn-red,.split a.btn-red,.section a.btn-red,.quick a.btn-red,
.page-hero a.btn-red,.article a.btn.btn-red,.prose a.btn.btn-red{color:#fff}
.article a.btn-ghost,.prose a.btn-ghost,.split a.btn-ghost,.section a.btn-ghost{color:var(--ink)}
.article a.btn-light,.prose a.btn-light,.split a.btn-light,.section a.btn-light{color:var(--red);background:#fff}
/* 深色区里的按钮 */
.dark-zone a.btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
/* 正文里的普通行内链接保持红色（非按钮） */
.article a:not(.btn):not(.guide-card):not(.product-card){color:var(--red)}
/* ===== /按钮可见性修复 ===== */

/* ===== WhatsApp 区号选择器 ===== */
.phone-field{display:flex;gap:8px;align-items:stretch}
.phone-field select{flex:0 0 auto;max-width:58%;min-width:130px;direction:ltr;text-align:start}
.phone-field input{flex:1 1 auto;min-width:0;direction:ltr;text-align:start}
.rfq-form label{display:block}
.rfq-form label>.phone-field{margin-top:6px}
@media(max-width:520px){
  .phone-field{flex-wrap:nowrap}
  .phone-field select{max-width:52%;min-width:118px;font-size:13px}
}
/* ===== /WhatsApp 区号选择器 ===== */

/* ===== 询价表单重新排版 ===== */
.rfq-shell{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start;max-width:1140px;margin:auto}
.rfq-shell>*{min-width:0}
.rfq-form{max-width:none;margin:0;border:1px solid var(--line);background:#fff;
  padding:40px 38px 34px;box-shadow:0 20px 50px rgba(14,31,49,.07);border-top:4px solid var(--red)}
.rfq-form label{display:flex;flex-direction:column;gap:7px;font-weight:700;font-size:12px;
  letter-spacing:.04em;text-transform:uppercase;color:#5c6b7b;margin:14px 0}
.rfq-form label i{color:var(--red);font-style:normal}
.rfq-form input,.rfq-form select,.rfq-form textarea{padding:14px 15px;border:1px solid #ccd6df;
  background:#fbfcfd;font:inherit;font-size:16px;font-weight:400;letter-spacing:0;
  text-transform:none;color:var(--ink);transition:border-color .18s,box-shadow .18s,background .18s}
.rfq-form input:focus,.rfq-form select:focus,.rfq-form textarea:focus{
  outline:none;border-color:var(--red);background:#fff;box-shadow:0 0 0 3px rgba(177,38,50,.12)}
.rfq-form input::placeholder,.rfq-form textarea::placeholder{color:#9aa8b6;font-weight:400}
.form-head{align-items:baseline;gap:14px;border-bottom:1px solid var(--line);padding-bottom:14px;margin:30px 0 4px}
.form-head:first-of-type{margin-top:6px}
.form-head b{background:var(--red);color:#fff;font-size:13px;font-weight:900;padding:6px 9px;letter-spacing:.04em}
.form-head h2{font-size:21px;margin:0;letter-spacing:-.02em;color:var(--navy)}
.form-grid{gap:18px 20px}
.rfq-form>label{margin-top:20px}
.rfq-form textarea{min-height:120px;resize:vertical;text-transform:none}
.checks{gap:26px;margin:22px 0 6px}
.checks label{flex-direction:row;align-items:center;gap:9px;font-size:13px;font-weight:600;
  text-transform:none;letter-spacing:0;color:#41525f;margin:0;cursor:pointer}
.checks input{width:18px;height:18px;accent-color:var(--red);padding:0}
.rfq-form .btn-xl{margin-top:26px;width:100%;justify-content:center;padding:17px 24px;font-size:16px}
#formMsg{margin-top:16px;font-weight:700;color:#1d7a4d;font-size:14px}
#formMsg:empty{display:none}

/* 右侧说明栏 */
.rfq-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:18px}
.rfq-card{border:1px solid var(--line);background:var(--paper);padding:26px}
.rfq-card .eyebrow{display:block;margin-bottom:16px}
.rfq-steps ol{list-style:none;margin:0;padding:0;counter-reset:s}
.rfq-steps li{display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line)}
.rfq-steps li:first-child{border-top:0;padding-top:0}
.rfq-steps li:last-child{padding-bottom:0}
.rfq-steps b{color:var(--red);font-size:13px;font-weight:900;padding-top:2px}
.rfq-steps strong{display:block;font-size:14.5px;color:var(--navy);line-height:1.35}
.rfq-steps span{display:block;margin-top:6px;font-size:12.5px;line-height:1.6;color:#6b7988;font-weight:400}
.rfq-direct{background:var(--navy);border-color:var(--navy)}
.rfq-direct .eyebrow{color:#ef4d59}
.rfq-direct p{color:#c2cedb;font-size:13px;line-height:1.7;margin:0 0 18px}
.rfq-direct .btn{width:100%;justify-content:center}
.rfq-direct small{display:block;margin-top:12px;color:#8798aa;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;text-align:center}
@media(max-width:1000px){
  .rfq-shell{grid-template-columns:1fr;gap:26px}
  .rfq-aside{position:static}
}
@media(max-width:700px){
  .rfq-form{padding:26px 20px}
  .form-grid{grid-template-columns:1fr}
  .checks{flex-direction:column;gap:14px}
}
/* ===== /询价表单重新排版 ===== */

/* ===== 询价表单细节修正 ===== */
.form-grid>*{min-width:0}
.rfq-form label{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;column-gap:6px;row-gap:7px}
.rfq-form label>input,.rfq-form label>select,.rfq-form label>textarea,.rfq-form label>.phone-field{
  flex:0 0 100%;width:100%;min-width:0;margin:0}
.rfq-form label i{color:var(--red);font-style:normal;line-height:1}
.phone-field{min-width:0}
.phone-field select{flex:0 0 auto;width:auto;max-width:170px;min-width:112px}
.phone-field input{flex:1 1 auto;width:auto;min-width:0}
.rfq-form textarea{flex:0 0 100%}
/* 复选框标签不参与上面的行内布局 */
.checks label{flex-direction:row;flex-wrap:nowrap;column-gap:9px;row-gap:0}
.checks label>input{flex:0 0 auto;width:18px;min-width:0}
/* ===== /询价表单细节修正 ===== */

/* ===== 滚动显现改为失效安全 ===== */
/* 默认全部可见：无 JS / JS 出错 / 观察器异常，都不会出现"空白页" */
.reveal{opacity:1;transform:none}
/* 只有 JS 正常执行并标记 <html class="js-reveal"> 后，才启用入场动画 */
html.js-reveal .reveal:not(.visible){opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
html.js-reveal .reveal.visible{opacity:1;transform:none}
/* ===== /滚动显现改为失效安全 ===== */

/* ── 栏目列表页介绍文案（本地补丁）────────────────────────── */
.page-intro{max-width:880px;margin:0 auto;padding:0 clamp(20px,5vw,64px);text-align:center}
.page-intro h2{font-size:clamp(22px,2.2vw,30px);line-height:1.28;margin:0 0 18px;font-weight:700}
.page-intro p{max-width:68ch;margin:0 auto 14px;font-size:16.5px;line-height:1.8;text-align:start;opacity:.92}
.page-intro p:last-child{margin-bottom:0}
.page-intro strong{font-weight:700;opacity:1}
@media (max-width:640px){.page-intro p{font-size:15.5px;line-height:1.72}}