/* ============================================================
   星华云联官网 · 全站样式
   设计基线沿用原宣传页（深蓝 hero + 蓝色渐变），重点修复：
   1) 移动端 hero 被手机壳 min-content 撑宽后裁切（原 P0）
   2) 对比表在窄屏只能横向滚动 → 改为卡片式
   3) 移动端无导航 → 汉堡抽屉
   ============================================================ */

:root{
  --blue:#2563eb; --blue-d:#1d4ed8; --ink:#0f172a; --slate:#475569; --muted:#64748b;
  --bg:#f5f7fb; --card:#ffffff; --line:#e6ebf3; --red:#ef4444; --green:#16a34a; --amber:#f59e0b;
  --nav-h:62px; --radius:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
a{color:inherit}

.skip{position:absolute;left:-9999px;top:0;z-index:200;background:#fff;color:var(--blue);padding:10px 16px;border-radius:0 0 10px 0;font-weight:700;text-decoration:none}
.skip:focus{left:0}

/* ===== 顶部导航 ===== */
.nav{position:sticky;top:0;z-index:60;background:rgba(11,18,32,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav.scrolled{box-shadow:0 10px 30px -14px rgba(2,8,26,.6)}
.nav .wrap{display:flex;align-items:center;gap:14px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;white-space:nowrap;padding:8px 0}
.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);flex:none}
.brand-txt{font-weight:800;color:#fff;font-size:16px;letter-spacing:.02em;line-height:1.1;display:flex;flex-direction:column}
.brand-txt em{font-style:normal;color:#7dd3fc}
.brand-txt small{font-size:10.5px;font-weight:600;color:#8fa3c8;letter-spacing:.14em;margin-top:2px}
.nav .links{display:flex;gap:2px;margin-left:auto}
.nav .links a{color:#c7d4ee;text-decoration:none;font-size:13.5px;padding:9px 12px;border-radius:9px;white-space:nowrap}
.nav .links a:hover{background:rgba(255,255,255,.09);color:#fff}
.nav .links a.on{color:#fff;background:rgba(59,130,246,.28)}
.nav-cta{margin-left:6px;padding:10px 18px;font-size:13.5px;border-radius:10px}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);border-radius:11px;cursor:pointer;padding:11px 10px;flex-direction:column;justify-content:space-between}
.nav-toggle span{display:block;height:2px;background:#dbe6fa;border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:700;border-radius:12px;padding:13px 26px;min-height:46px;cursor:pointer;text-decoration:none;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:linear-gradient(135deg,#3b82f6,#4f46e5);color:#fff;box-shadow:0 12px 28px -10px rgba(59,130,246,.6)}
.btn.primary:hover{box-shadow:0 16px 34px -10px rgba(59,130,246,.75)}
.btn.ghost{border:1px solid rgba(255,255,255,.35);color:#dbe6fa;background:rgba(255,255,255,.06)}
.btn.ghost:hover{background:rgba(255,255,255,.12)}
.btn.line{border:1px solid var(--line);color:var(--blue);background:#fff}
.btn.sm{font-size:13.5px;padding:10px 16px;min-height:40px;border-radius:10px}
.btns{display:flex;gap:14px;flex-wrap:wrap}

/* ===== Hero ===== */
.hero{background:radial-gradient(1200px 600px at 80% -10%,rgba(59,130,246,.35),transparent 60%),radial-gradient(800px 500px at -10% 110%,rgba(99,102,241,.28),transparent 60%),linear-gradient(160deg,#0b1220 0%,#0f1b3a 55%,#12234d 100%);color:#fff;padding:60px 0 84px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(700px 400px at 50% 20%,#000 30%,transparent 75%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:44px;align-items:center}
.hero .wrap>*{min-width:0}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(59,130,246,.18);border:1px solid rgba(96,165,250,.45);color:#bfdbfe;border-radius:999px;padding:6px 14px;font-size:13px;letter-spacing:.02em;max-width:100%}
.badge .dot{width:7px;height:7px;border-radius:50%;background:#38bdf8;box-shadow:0 0 10px #38bdf8;flex:none}
.hero h1{font-size:44px;line-height:1.24;font-weight:800;margin:20px 0 8px;letter-spacing:.01em}
.hero h1 .grad{background:linear-gradient(92deg,#60a5fa,#a5b4fc 60%,#7dd3fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:19px;color:#c7d4ee;margin-bottom:12px;font-weight:600}
.hero p.desc{color:#9fb0d0;font-size:15px;max-width:540px;margin-bottom:24px}
.hero .btns{margin-bottom:26px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:8px 14px;font-size:13px;color:#dbe6fa}
.chip b{color:#fff;font-weight:700}
.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:14px 16px;min-width:0}
.stat .num{font-size:22px;font-weight:800;color:#fff;letter-spacing:.01em;line-height:1.3}
.stat .num small{font-size:13px;font-weight:600;color:#93c5fd;margin-left:2px}
.stat .lbl{font-size:12px;color:#8fa3c8;margin-top:4px;line-height:1.5}
.hero-phones{display:flex;justify-content:center;gap:22px;align-items:flex-start;flex-wrap:wrap;min-width:0}
.hero-phones .phone{transform:rotate(2.5deg)}
.hero-phones .phone.t2{transform:rotate(-3deg) translateY(28px)}
.js .hero-phones .phone{animation:float 7s ease-in-out infinite}
.js .hero-phones .phone.t2{animation-delay:1.2s}
@keyframes float{0%,100%{translate:0 0}50%{translate:0 -12px}}

/* ===== 手机壳（关键修复：允许收缩，不再撑破栅格） ===== */
.phone{width:258px;max-width:100%;min-width:0;flex:none;border:9px solid #0b1220;border-radius:34px;overflow:hidden;box-shadow:0 30px 70px -18px rgba(2,8,26,.55),0 0 0 1px rgba(255,255,255,.08);background:#0b122a}
.phone img{display:block;width:100%;height:auto}
.phone.sm{width:238px;border-width:8px;border-radius:30px}
.phones{display:flex;justify-content:center;gap:20px;align-items:flex-start;flex-wrap:wrap;min-width:0}

/* ===== 章节通用 ===== */
section{padding:76px 0}
section.alt{background:#fff}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;color:var(--blue);letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
.kicker::before{content:"";width:26px;height:2px;background:var(--blue);border-radius:2px;flex:none}
h2{font-size:32px;font-weight:800;letter-spacing:.01em;margin-bottom:12px}
h3{font-size:22px;font-weight:800;margin-bottom:12px}
.lead{color:var(--slate);font-size:16px;max-width:720px;margin-bottom:40px}
.soon{font-size:11px;font-weight:800;color:#fff;background:linear-gradient(135deg,#f59e0b,#f97316);padding:2px 10px;border-radius:999px;letter-spacing:.05em;margin-left:10px;box-shadow:0 2px 8px -2px rgba(249,115,22,.5)}
.row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,500px);gap:48px;align-items:center;margin-bottom:20px}
.row.rev{grid-template-columns:minmax(0,500px) minmax(0,1fr)}
.row.wide{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}
.row>*{min-width:0}
.row h3{margin-top:0}
.feat p{color:var(--slate);font-size:15px;margin-bottom:14px}
.points{list-style:none;margin-top:18px;display:grid;gap:12px}
.points li{display:flex;gap:12px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:13px 16px;font-size:14px;color:#334155;box-shadow:0 2px 10px -4px rgba(15,23,42,.06)}
section.alt .points li{background:#f8fafd}
.points .ic{flex:none;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-size:15px}
.ic.b{background:#e8f0fe;color:var(--blue)} .ic.r{background:#fdecec;color:var(--red)} .ic.g{background:#e7f7ee;color:var(--green)} .ic.a{background:#fdf3df;color:#b45309} .ic.p{background:#f0edfd;color:#6d28d9}
.points b{color:var(--ink)}
.caption{margin-top:14px;font-size:12.5px;color:var(--muted);text-align:center}
.note{margin-top:22px;font-size:12.5px;color:var(--muted);background:#f1f5fb;border:1px dashed #cfdcf0;border-radius:12px;padding:12px 16px}
.note b{color:var(--slate)}

/* ===== 子页面页头 ===== */
.phead{background:radial-gradient(900px 420px at 50% -40%,rgba(59,130,246,.4),transparent 62%),linear-gradient(160deg,#0b1220,#12234d);color:#fff;padding:40px 0 56px;position:relative;overflow:hidden}
.phead::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(600px 300px at 50% 0%,#000 20%,transparent 78%);pointer-events:none}
.phead .wrap{position:relative}
.crumb{font-size:12.5px;color:#8fa3c8;margin-bottom:18px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumb a{color:#bfdbfe;text-decoration:none;display:inline-flex;align-items:center;min-height:32px;padding:0 5px}
.crumb a:hover{text-decoration:underline}
.phead .kicker{color:#7dd3fc}
.phead .kicker::before{background:#7dd3fc}
.phead h1{font-size:38px;line-height:1.26;font-weight:800;margin-bottom:14px}
.phead .lead{color:#9fb0d0;margin-bottom:0;max-width:760px}

/* ===== 页内锚点索引 ===== */
.toc{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:var(--nav-h);z-index:40;overflow-x:auto;-webkit-overflow-scrolling:touch}
.toc .wrap{display:flex;gap:6px;padding-top:10px;padding-bottom:10px;min-width:max-content}
.toc a{font-size:13.5px;color:var(--slate);text-decoration:none;padding:8px 14px;border-radius:9px;white-space:nowrap;min-height:36px;display:flex;align-items:center}
.toc a:hover{background:#eef4ff;color:var(--blue-d)}
.toc a.on{background:#e8f0fe;color:var(--blue-d);font-weight:700}

/* ===== 信任条 ===== */
.trustbar{background:#0b1220;border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);color:#8fa3c8;padding:16px 0;font-size:13px}
.trustbar .wrap{display:flex;gap:14px 26px;flex-wrap:wrap;align-items:center;justify-content:center;text-align:center}
.trustbar b{color:#dbe6fa;font-weight:700}
.trustbar .tb{display:inline-flex;align-items:center;gap:8px}

/* ===== 痛点卡 ===== */
.pains{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:8px}
.pain{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 2px 10px -4px rgba(15,23,42,.06)}
.pain .em{font-size:22px;display:block;margin-bottom:8px}
.pain b{display:block;font-size:15.5px;margin-bottom:6px}
.pain p{font-size:13.5px;color:var(--slate)}
.core-note{margin-top:22px;background:linear-gradient(135deg,#eef4ff,#f5f0ff);border:1px solid #dbe4f7;border-radius:var(--radius);padding:18px 20px;font-size:14.5px;color:#334155}
.core-note b{color:var(--ink)}

/* ===== 对撞式共鸣 ===== */
.duel{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px;margin-top:8px}
.duel-col{border-radius:var(--radius);padding:22px;border:1px solid var(--line);background:#fff}
.duel-col.weak{background:#fbfcfe}
.duel-col.strong{background:linear-gradient(160deg,#0b1220,#12234d);color:#e6efff;border-color:#1e2b4d}
.duel-h{font-size:14px;font-weight:800;letter-spacing:.04em;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.duel-col.weak .duel-h{color:var(--muted)}
.duel-col.strong .duel-h{color:#7dd3fc}
.bubble{background:#f1f5fb;border-radius:12px;padding:12px 14px;font-size:13.5px;color:var(--slate);margin-bottom:12px}
.bubble.me{background:rgba(255,255,255,.08);color:#cfdcf5}
.duel-col.strong .bubble{border:1px solid rgba(255,255,255,.1)}
.duel-foot{font-size:12.5px;margin-top:14px;color:var(--muted)}
.duel-col.strong .duel-foot{color:#8fa3c8}
.cite{margin-top:12px;display:grid;gap:7px}
.cite span{font-size:12px;background:rgba(125,211,252,.12);border:1px solid rgba(125,211,252,.28);color:#bfdbfe;border-radius:9px;padding:6px 11px}
.duel-col.strong .bubble strong{color:#fff}

/* ===== 能力卡 / 技术卡 ===== */
.tech{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin-top:8px}
.tc{border:1px solid var(--line);border-radius:18px;padding:22px;background:#f8fafd;min-width:0}
section.alt .tc{background:#f4f7fc}
.tc h4{font-size:16px;font-weight:800;margin-bottom:10px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.tc .em{font-size:20px}
.tc ul{list-style:none;font-size:13.5px;color:var(--slate);display:grid;gap:7px}
.tc li::before{content:"·";color:var(--blue);font-weight:900;margin-right:7px}
.tc li a{color:var(--blue);font-weight:700;text-decoration:none;display:inline-flex;align-items:center;min-height:32px}
.tc li a:hover{text-decoration:underline}
.tc .more{display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:8px 0;min-height:38px;font-size:13.5px;font-weight:700;color:var(--blue);text-decoration:none}
.tc .more:hover{text-decoration:underline}

/* ===== 证据卡 ===== */
.evidence{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:26px}
.ev{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:#f8fafd;min-width:0}
section.alt .ev{background:#f4f7fc}
.ev .tag{font-size:12px;font-weight:700;color:var(--blue);background:#e8f0fe;display:inline-block;padding:3px 10px;border-radius:999px;margin-bottom:10px}
.ev .q{font-size:13.5px;color:#334155;line-height:1.75}
.ev .q .ask{font-weight:700;color:var(--ink);display:block;margin-bottom:6px}
.ev .meta{margin-top:10px;font-size:12px;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap}
.pill{display:inline-block;font-size:11.5px;font-weight:700;padding:2px 9px;border-radius:999px}
.pill.p0{background:#fdecec;color:var(--red)} .pill.p1{background:#fdf3df;color:#b45309} .pill.p2{background:#e7f7ee;color:var(--green)}

/* ===== 流程 ===== */
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:14px;margin-top:30px}
.fs{position:relative;border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px;background:#f8fafd;font-size:13.5px;color:var(--slate);min-width:0}
.fs .n{width:30px;height:30px;border-radius:10px;background:linear-gradient(135deg,#2563eb,#4f46e5);color:#fff;font-weight:800;display:grid;place-items:center;font-size:14px;margin-bottom:10px}
.fs .t{display:inline-block;background:linear-gradient(135deg,#2563eb,#4f46e5);color:#fff;font-weight:800;font-size:13px;border-radius:9px;padding:4px 12px;margin-bottom:10px}
.fs b{display:block;color:var(--ink);font-size:14.5px;margin-bottom:4px}

/* ===== 角色卡 ===== */
.roles{display:grid;grid-template-columns:repeat(auto-fit,minmax(265px,1fr));gap:18px;margin-top:8px}
.rc{border:1px solid var(--line);border-radius:18px;padding:24px;background:#f8fafd;display:flex;flex-direction:column;min-width:0}
.rc .who{font-size:16px;font-weight:800;display:flex;align-items:center;gap:9px;margin-bottom:10px}
.rc .who .em{font-size:22px}
.rc .pain-q{font-size:13.5px;color:var(--muted);background:#fff;border:1px dashed #d5deee;border-radius:10px;padding:9px 13px;margin-bottom:14px}
.rc ul{list-style:none;font-size:13.5px;color:#334155;display:grid;gap:8px}
.rc li{padding-left:22px;position:relative}
.rc li::before{content:"✓";position:absolute;left:0;top:0;color:var(--green);font-weight:900}

/* ===== 交付模式 ===== */
.modes{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:8px}
.mode{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden;display:flex;flex-direction:column;min-width:0}
.mode .mh{padding:20px 22px 0}
.mode .mnum{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,#2563eb,#4f46e5);color:#fff;font-weight:800;margin-bottom:12px}
.mode h3{font-size:19px;margin-bottom:6px}
.mode .mtag{font-size:13px;color:var(--muted)}
.mode .mb{padding:14px 22px 22px}
.mode .mb img{border:1px solid var(--line);border-radius:12px;margin-bottom:14px}
.mode .tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:14px}
.mode .tags i{font-style:normal;font-size:12px;font-weight:700;background:#eef4ff;color:var(--blue-d);border-radius:999px;padding:3px 10px}
.mode ul{list-style:none;font-size:13.5px;color:var(--slate);display:grid;gap:7px}
.mode li{padding-left:18px;position:relative}
.mode li::before{content:"—";position:absolute;left:0;color:#94a3b8}

/* ===== 对比表（窄屏自动转卡片） ===== */
.cmp-wrap{margin-top:30px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 4px 20px -8px rgba(15,23,42,.08);overflow:hidden}
.cmp-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cmp{min-width:720px;width:100%;border-collapse:collapse;font-size:13.5px}
.cmp th,.cmp td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;color:#475569}
.cmp tr:last-child th,.cmp tr:last-child td{border-bottom:none}
.cmp thead th{font-size:14.5px;color:var(--ink);background:#f8fafd;font-weight:800}
.cmp thead th.hl{background:linear-gradient(135deg,#2563eb,#4f46e5);color:#fff}
.cmp tbody th{font-weight:800;color:var(--ink);background:#fff;font-size:13px;white-space:nowrap}
.cmp td.hl{background:#eef4ff;font-weight:700;color:#1e40af}
.mk{font-weight:900;margin-right:6px}
.mk.yes{color:var(--green)} .mk.mid{color:#b45309} .mk.no{color:#cbd5e1}

/* ===== 客户案例卡 =====
   站点暂时不放客户案例（尚无可用案例素材），相关样式一并移除。
   等有真实案例时按下面这套结构写 HTML 即可，样式直接取消注释：
   <div class="cases"><div class="case">
     <div class="ch"><span class="ind">行业</span><span class="scale">规模</span></div>
     <dl><dt>起点</dt><dd>…</dd><dt>落地方式</dt><dd>…</dd><dt>现在</dt><dd>…</dd></dl>
   </div></div>

.cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px;margin-top:8px}
.case{border:1px solid var(--line);border-radius:18px;background:#fff;padding:22px;display:flex;flex-direction:column;min-width:0}
.case .ch{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.case .ind{font-size:12px;font-weight:800;background:#e8f0fe;color:var(--blue-d);border-radius:999px;padding:3px 11px}
.case .scale{font-size:12px;color:var(--muted)}
.case dl{display:grid;gap:10px;font-size:13.5px}
.case dt{font-weight:800;color:var(--ink);font-size:12.5px;letter-spacing:.02em}
.case dd{color:var(--slate)}
.case .cfoot{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted)}
*/

/* ===== CTA ===== */
.cta{background:radial-gradient(900px 420px at 50% -30%,rgba(59,130,246,.42),transparent 60%),linear-gradient(160deg,#0b1220,#12234d);color:#fff;padding:84px 0;text-align:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(600px 300px at 50% 30%,#000 20%,transparent 75%);pointer-events:none}
.cta .wrap{position:relative}
.cta .kicker,.phead+.cta .kicker{color:#7dd3fc}
.cta .kicker::before{background:#7dd3fc}
.cta h2{color:#fff;font-size:34px}
.cta p{color:#9fb0d0;max-width:640px;margin:0 auto 30px;font-size:15.5px}
.cta .btns{justify-content:center}
.cta .contact{margin-top:28px;font-size:14px;color:#8fa3c8}
.cta .contact b{color:#dbe6fa}

/* ===== Footer ===== */
footer{background:#0b1220;color:#8fa3c8;padding:52px 0 30px;font-size:13px;border-top:1px solid rgba(255,255,255,.06)}
.fgrid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(4,minmax(0,1fr));gap:32px}
.fbrand b{color:#fff;font-size:16px;display:block;margin-bottom:8px}
.fbrand p{color:#8fa3c8;margin-bottom:16px;max-width:280px}
.fcontact{display:grid;gap:2px;margin-bottom:16px}
.fcontact a{color:#c7d4ee;text-decoration:none;display:inline-flex;align-items:center;min-height:32px}
.fcontact a:hover{color:#fff}
.fcol h4{color:#fff;font-size:13.5px;font-weight:800;margin-bottom:10px}
.fcol ul{list-style:none;display:grid;gap:2px}
.fcol a{color:#8fa3c8;text-decoration:none;display:inline-flex;align-items:center;min-height:32px}
.fcol a:hover{color:#fff;text-decoration:underline}
.fbottom{margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#6b7fa8}
.fbottom a{color:#8fa3c8}

/* ===== 弹窗 ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(11,18,32,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;padding:24px}
.modal-overlay[hidden]{display:none}
.modal{background:#fff;border-radius:20px;max-width:440px;width:100%;padding:28px 26px;position:relative;box-shadow:0 30px 80px -20px rgba(2,8,26,.5);text-align:left;max-height:90vh;overflow-y:auto}
.modal-close{position:absolute;top:14px;right:14px;width:40px;height:40px;border:none;border-radius:50%;background:#f1f5fb;color:#475569;font-size:15px;cursor:pointer;display:grid;place-items:center;line-height:1}
.modal-close:hover{background:#e2e8f2}
.modal-title{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:4px;display:flex;align-items:center;gap:8px}
.modal-sub{color:var(--muted);font-size:13px;margin-bottom:16px}
.modal-items{display:grid;gap:11px}
.modal-item{display:flex;gap:12px;align-items:center;background:#f8fafd;border:1px solid var(--line);border-radius:14px;padding:13px 16px}
.modal-item .m-ic{font-size:18px;flex:none}
.modal-item b{display:block;font-size:12px;color:var(--muted);font-weight:600;margin-bottom:2px}
.modal-item a{color:var(--blue);font-weight:700;font-size:15px;text-decoration:none}
.modal-item a:hover{text-decoration:underline}
.modal .btn{width:100%;margin-top:18px}

/* ===== 滚动显现 ===== */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .65s ease,transform .65s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  .js .hero-phones .phone{animation:none}
  html{scroll-behavior:auto}
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1080px){
  .nav .links{display:none;position:absolute;left:0;right:0;top:var(--nav-h);background:#0b1220;border-bottom:1px solid rgba(255,255,255,.1);flex-direction:column;padding:10px 16px 18px;gap:2px;box-shadow:0 24px 40px -20px rgba(2,8,26,.8)}
  .nav .links.open{display:flex}
  .nav .links a{padding:13px 12px;font-size:15px}
  .nav-toggle{display:flex}
  .nav-cta{margin-left:auto;padding:10px 14px}
  .nav .wrap{gap:10px}
  .fgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fbrand{grid-column:1/-1}
}
@media (max-width:960px){
  .hero .wrap{grid-template-columns:minmax(0,1fr);gap:34px}
  .hero-phones{margin-top:8px}
  .hero h1{font-size:34px}
  .row,.row.rev,.row.wide{grid-template-columns:minmax(0,1fr);gap:34px}
  .row .phones{order:-1}
  section{padding:56px 0}
  h2{font-size:26px}
  .phead h1{font-size:30px}
  .phead{padding:32px 0 44px}
  .cta h2{font-size:27px}
  .cta{padding:64px 0}
}
@media (max-width:760px){
  /* 对比表：转卡片，不再横向滚动 */
  .cmp-scroll{overflow-x:visible}
  .cmp{min-width:0;display:block}
  .cmp thead{display:none}
  .cmp tbody,.cmp tr,.cmp th,.cmp td{display:block;width:100%}
  .cmp tr{border:1px solid var(--line);border-radius:14px;margin:12px;overflow:hidden;background:#fff}
  .cmp tr:first-child{margin-top:12px}
  .cmp tbody th{background:#f8fafd;font-size:14px;border-bottom:1px solid var(--line);white-space:normal}
  .cmp td{border-bottom:1px solid var(--line);padding:11px 16px 11px 16px}
  .cmp td:last-child{border-bottom:none}
  .cmp td::before{content:attr(data-th);display:block;font-size:11.5px;font-weight:800;color:var(--muted);letter-spacing:.04em;margin-bottom:4px}
  .cmp td.hl::before{color:#1e40af}
  .cmp tbody th::before{content:none}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .hero{padding:42px 0 60px}
  .hero h1{font-size:29px}
  .hero .sub{font-size:16.5px}
  .hero p.desc{font-size:14.5px}
  .badge{font-size:12px}
  .stat .num{font-size:20px}
  .chips{gap:8px}
  .chip{font-size:12.5px;padding:7px 12px}
  .btns{gap:10px}
  .btns .btn{width:100%}
  .btn{font-size:14.5px;padding:13px 20px}
  h2{font-size:23px}
  h3{font-size:19px}
  .lead{font-size:15px;margin-bottom:28px}
  section{padding:46px 0}
  .fgrid{grid-template-columns:1fr;gap:26px}
  .phead h1{font-size:25px}
  .phead .lead{font-size:14.5px}
  .fbottom{flex-direction:column;gap:8px}
  .modal{padding:24px 20px}
  .duel-col,.tc,.rc,.mode{padding:18px}
}