:root{
  --blue:#1a73e8; --blue-d:#0b57c4; --blue-l:#eaf2fe;
  --amber:#f59e0b; --amber-l:#fff5e2;
  --navy:#0f2544; --ink:#1b2b3d; --muted:#5f7186; --line:#e3eaf3;
  --bg:#f5f8fc; --green:#12a150; --red:#e05b4c;
  --shadow:0 6px 24px rgba(16,42,72,.08); --shadow-l:0 2px 10px rgba(16,42,72,.06);
  --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%}
a{color:var(--blue);text-decoration:none}
h1,h2,h3,h4,h5{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{max-width:900px}

/* ---------- 顶栏 ---------- */
.topbar{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;gap:20px;height:66px}
.brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
.brand .mark{width:38px;height:38px;flex:none;border-radius:7px;object-fit:contain;display:block}
.brand .bt{font-size:19px;font-weight:800;color:#111318;letter-spacing:.06em;line-height:1.1}
.brand .bt small{display:block;margin:3px -.3em 0 0;font-size:10px;font-weight:600;color:var(--muted);letter-spacing:.3em;line-height:1.2}
.nav{display:flex;gap:18px;margin-left:auto;font-size:14.5px;font-weight:600;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{position:relative;white-space:nowrap;padding:4px 0;color:var(--muted);border-bottom:2px solid transparent;transition:.2s}
.nav a:hover{color:var(--blue);border-color:var(--blue)}
.nav a.on{color:var(--blue);border-color:var(--blue)}
.nav a.ext::after{content:"\2197";font-size:11px;margin-left:3px;color:#9fb1c6;vertical-align:super}

/* ---------- 面包屑 ---------- */
.crumbs{background:#fff;border-bottom:1px solid var(--line)}
.crumbs .wrap{display:flex;align-items:center;gap:8px;min-height:38px;padding-top:6px;padding-bottom:6px;
  overflow-x:auto;white-space:nowrap;font-size:12.8px;line-height:1.4;scrollbar-width:none}
.crumbs .wrap::-webkit-scrollbar{display:none}
.crumbs a,.crumbs [aria-current="page"]{white-space:nowrap;flex:none}
.crumbs a{color:var(--muted);font-weight:600;transition:color .2s}
.crumbs a:hover{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.crumbs [aria-current="page"]{color:var(--navy);font-weight:700}
.crumbs .sep{flex:none;color:#c0cddd;font-size:13px;line-height:1;user-select:none}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--navy)}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(900px 420px at 88% 8%,rgba(26,115,232,.42),transparent 62%),
  radial-gradient(700px 380px at 6% 96%,rgba(245,158,11,.20),transparent 60%)}
.hero::after{content:"";position:absolute;inset:0;opacity:.16;background-image:
  linear-gradient(rgba(255,255,255,.18) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.18) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%)}
.hero .wrap{position:relative;z-index:2;padding-top:70px;padding-bottom:74px}
.hero.two .wrap{display:grid;grid-template-columns:1.06fr .94fr;gap:46px;align-items:center}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.badge{font-size:13px;font-weight:700;padding:6px 13px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);backdrop-filter:blur(4px)}
.badge.hot{background:var(--amber);border-color:var(--amber);color:#3a2500}
.hero h1{font-size:42px;letter-spacing:-1px;line-height:1.24}
.hero h1 em{font-style:normal;color:#7fb7ff}
.hero .lead{margin-top:18px;font-size:17.5px;color:#cfdcec;max-width:660px}
.hero .lead .dim{display:block;margin-top:10px;font-size:14.5px;color:#9fb6d0}
.hero .frame{border-radius:14px;overflow:hidden;background:#fff;
  border:1px solid rgba(255,255,255,.22);box-shadow:0 26px 46px rgba(0,0,0,.42)}
.hero .frame img{display:block;width:100%;height:auto}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:32px}
.hstat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:13px 14px}
.hstat b{display:block;font-size:23px;letter-spacing:-.5px}
.hstat span{font-size:12.5px;color:#a9bdd6}
.hero-art{position:relative;justify-self:end;width:100%;max-width:440px}
.hero-art svg,.hero-art img{width:100%;height:auto;display:block}
.hero-art img{filter:drop-shadow(0 22px 40px rgba(0,0,0,.36))}
.art-cap{margin-top:12px;font-size:12.5px;color:#93a9c4;text-align:center}
.hero-act{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:10px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap}
.btn-p{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(26,115,232,.32)}
.btn-p:hover{background:var(--blue-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-line{background:#fff;color:var(--blue);border-color:#cfe1fb}
.btn-line:hover{background:var(--blue-l);color:var(--blue-d)}

/* ---------- 章节 ---------- */
main{display:block}
.sec{padding:60px 0 8px}
.sec.last{padding-bottom:64px}
.sec-h{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;margin-bottom:8px}
.sec-no{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--blue);background:var(--blue-l);border:1px solid #cfe1fb;border-radius:10px;padding:10px 13px;line-height:1.3;text-align:center;white-space:nowrap}
.sec-h h2{font-size:28px;letter-spacing:-.4px;color:var(--navy)}
.sec-h p{color:var(--muted);margin-top:9px;font-size:15.5px;max-width:880px}
.sec.tint{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec.dark{background:var(--navy);color:#fff}
.sec.dark .sec-h h2{color:#fff}
.sec.dark .sec-h p{color:#a9bdd6}
.sec.dark .sec-no{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.22);color:#7fb7ff}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:16px;margin-top:28px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.tile{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow-l);transition:transform .2s,box-shadow .2s,border-color .2s}
.tile:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfe1fb}
.sec.dark .tile{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);box-shadow:none}
.sec.dark .tile:hover{background:rgba(255,255,255,.1);border-color:rgba(127,183,255,.5);transform:translateY(-3px)}
.ico{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),#4d9bff);box-shadow:0 4px 12px rgba(26,115,232,.26);flex:none}
.ico svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.ico.warn{background:linear-gradient(135deg,#e05b4c,#f08a63);box-shadow:0 4px 12px rgba(224,91,76,.26)}
.ico.amb{background:linear-gradient(135deg,#f59e0b,#fbc55a);box-shadow:0 4px 12px rgba(245,158,11,.26)}
.ico.grn{background:linear-gradient(135deg,#12a150,#43c47f);box-shadow:0 4px 12px rgba(18,161,80,.26)}
.tile h3{font-size:17px;color:var(--navy);letter-spacing:-.2px}
.sec.dark .tile h3{color:#fff}
.tile p{font-size:14px;color:var(--muted);line-height:1.72}
.sec.dark .tile p{color:#a9bdd6}
.tile .k{font-size:12px;font-weight:800;letter-spacing:.05em;color:var(--blue);text-transform:uppercase}
.tile.has-img{overflow:hidden}
.tile.has-img .thumb{margin:0 -20px 6px;display:block;background:#eef2f7;aspect-ratio:16/9;overflow:hidden}
.tile.has-img .thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.tile.has-img:hover .thumb img{transform:scale(1.04)}
.sec.dark .tile.has-img .thumb{background:rgba(255,255,255,.08)}

/* ---------- 痛点条 ---------- */
.pains{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.pain{background:#fff;border:1px solid var(--line);border-left:3px solid var(--red);border-radius:12px;padding:17px 18px;box-shadow:var(--shadow-l)}
.pain h4{font-size:15.5px;color:var(--navy);display:flex;align-items:center;gap:8px}
.pain h4 i{font-style:normal;font-size:11px;font-weight:800;color:var(--red);background:#fdecea;border-radius:6px;padding:2px 6px;flex:none}
.pain p{margin-top:7px;font-size:13.8px;color:var(--muted);line-height:1.7}
.pain p.only{margin-top:0;font-size:14.2px;color:#3c5169}
.pain .fix{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line);font-size:13.2px;color:#3c5169;line-height:1.65}
.pain .fix b{font-weight:800;color:var(--green);margin-right:6px}

/* ---------- 能力块（编号 + 要点） ---------- */
.caps{margin-top:28px;display:grid;gap:16px}
.cap{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;box-shadow:var(--shadow-l);display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start}
.cap-no{width:44px;height:44px;border-radius:12px;background:var(--blue-l);border:1px solid #cfe1fb;color:var(--blue-d);display:grid;place-items:center;font-size:16px;font-weight:800;flex:none}
.cap h3{font-size:18.5px;color:var(--navy)}
.cap .sub{font-size:14px;color:var(--muted);margin-top:6px}
.bul{margin-top:14px;display:grid;grid-template-columns:repeat(2,1fr);gap:9px 24px}
.bul li{position:relative;padding-left:20px;font-size:14.2px;color:#3c5169;line-height:1.68}
.bul li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:3px;background:var(--blue);opacity:.55}
.bul li b{color:var(--navy)}
.bul.one{grid-template-columns:1fr}

/* ---------- 模块条 ---------- */
.mods{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}
.mod{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 15px;display:flex;gap:11px;align-items:flex-start;transition:.2s}
.mod:hover{border-color:#cfe1fb;box-shadow:var(--shadow-l)}
.mod .dot{width:9px;height:9px;border-radius:50%;background:var(--blue);margin-top:8px;flex:none}
.mod.opt .dot{background:var(--amber)}
.mod h4{font-size:14.8px;color:var(--navy)}
.mod p{font-size:12.6px;color:var(--muted);line-height:1.6;margin-top:3px}
.legend{display:flex;gap:18px;margin-top:16px;font-size:12.8px;color:var(--muted)}
.legend i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px;vertical-align:middle}
.sub-h{margin-top:32px;font-size:16.5px;color:var(--navy);display:flex;align-items:center;gap:10px}
.sub-h em{font-style:normal;font-size:11.5px;font-weight:800;letter-spacing:.05em;color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:3px 9px}

/* ---------- 数值 / 指标 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
.metric{border-radius:var(--r);padding:22px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16)}
.metric b{display:block;font-size:34px;letter-spacing:-1.2px;line-height:1.1;color:#fff}
.metric b small{font-size:17px;font-weight:700;margin-left:2px}
.metric h4{margin-top:9px;font-size:15.5px;color:#dbe7f4}
.metric p{margin-top:6px;font-size:13.2px;color:#9fb6d0;line-height:1.65}
.metric h4:first-child{margin-top:0}
.vs{display:grid;gap:12px;margin-top:4px}
.vs .v{display:flex;align-items:baseline;gap:10px}
.vs .v b{font-size:27px;letter-spacing:-.9px;line-height:1;color:#fff;white-space:nowrap}
.vs .v b small{font-size:15px;margin-left:1px}
.vs .v span{font-size:13.2px;color:#cfdcec;line-height:1.5}
.tile .vs .v b,.card .vs .v b{color:var(--navy)}
.tile .vs .v span,.card .vs .v span{color:var(--muted)}
.metric .note{margin-top:12px}
.note{margin-top:16px;font-size:12.4px;color:#8fa6c0}

/* ---------- 客户标识墙 ---------- */
.logos{display:grid;grid-template-columns:repeat(7,1fr);gap:14px;margin-top:22px}
.logos div{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;display:grid;place-items:center;min-height:76px;transition:border-color .25s ease,box-shadow .25s ease}
.logos img{max-height:44px;width:auto;max-width:100%;transition:transform .3s cubic-bezier(.22,.68,.32,1)}
.logos div:hover{border-color:#cfe1fb;box-shadow:var(--shadow);z-index:2}
.logos div:hover img{transform:scale(1.18)}
.sec:not(.dark) .note{color:#8496a9}

/* ---------- 图文 / 截图 ---------- */
.figure{margin:26px 0 0;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-l);overflow:hidden}
.figure img{display:block;width:100%;height:auto;border-radius:8px}
.figure figcaption{margin-top:14px;font-size:13.4px;color:var(--muted);text-align:center}
.shots{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}
.shot{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-l);transition:.2s}
.shot:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.shot .ph{background:linear-gradient(135deg,#eef4fb,#dfeaf8);padding:16px;display:grid;place-items:center;min-height:200px}
.shot .ph img{display:block;width:100%;height:auto;border-radius:6px;box-shadow:0 8px 22px rgba(16,42,72,.14)}
.shot .tx{padding:15px 17px 17px}
.shot h4{font-size:15.5px;color:var(--navy)}
.shot p{margin-top:5px;font-size:13.4px;color:var(--muted);line-height:1.68}

/* ---------- 证言 / 客户标识行 ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-l);display:flex;flex-direction:column;gap:12px}
.sec.dark .quote{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);box-shadow:none}
.who{display:flex;align-items:center;gap:11px}
.lg{width:40px;height:40px;border-radius:11px;background:var(--blue-l);border:1px solid #cfe1fb;display:grid;place-items:center;font-weight:800;color:var(--blue-d);font-size:15px;flex:none}
.lg img{width:100%;height:100%;object-fit:contain;border-radius:11px}
.meta{font-size:12.4px;color:var(--muted)}
.quote h4{font-size:15.5px;color:var(--navy)}
.sec.dark .quote h4{color:#fff}
.sec.dark .quote .meta{color:#93a9c4}
.quote blockquote{margin:0;font-size:13.8px;line-height:1.78;color:#3c5169}
.sec.dark .quote blockquote{color:#cfdcec}
.quote .role{margin-top:auto;font-size:12.6px;font-weight:700;color:var(--blue)}

/* ---------- 正文段落 / 大引言 ---------- */
.prose{max-width:940px;margin-top:26px}
.prose p{font-size:15.6px;color:#3c5169;line-height:1.88;margin-top:15px}
.prose p:first-child{margin-top:0}
.prose b{color:var(--navy)}
.say{margin:26px 0 0;padding:26px 30px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:var(--r);font-size:19px;line-height:1.9;letter-spacing:-.2px;color:var(--navy)}
.sec.dark a{color:#7fb7ff}

/* ---------- 分组卡（首页 / 总览） ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:11px;transition:transform .2s,box-shadow .2s,border-color .2s;box-shadow:var(--shadow-l)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe1fb}
.card h3{font-size:17.5px;color:var(--navy);letter-spacing:-.2px}
.card h3 a{color:inherit}
.card h3 .stretched::after{content:"";position:absolute;inset:0;z-index:1}
.card p{font-size:13.8px;color:var(--muted);line-height:1.7}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tags i{font-style:normal;font-size:11.5px;font-weight:700;color:#41586f;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2px 8px}
.cfoot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:13px;border-top:1px dashed var(--line)}
.cfoot .go{font-size:13px;font-weight:800;color:var(--blue);transition:transform .2s}
.cfoot .go::after{content:" \2192"}
.card:hover .cfoot .go{transform:translateX(3px)}
.pill{font-size:11.5px;font-weight:800;letter-spacing:.04em;color:#7a8ba0;background:#eef2f7;border-radius:999px;padding:3px 10px;white-space:nowrap}
.pill.b{color:var(--blue-d);background:var(--blue-l)}
.pill.a{color:#8a5a00;background:var(--amber-l)}
.card .num{margin-left:auto;font-size:11px;font-weight:800;letter-spacing:.06em;color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:3px 8px;white-space:nowrap}
.card .art{border-radius:10px;background:linear-gradient(135deg,#eaf2fe,#f7fbff);padding:14px;display:grid;place-items:center;min-height:132px}
.card .art img,.card .art svg{max-height:132px;width:auto}

/* ---------- 对比表 ---------- */
.tbl{width:100%;border-collapse:separate;border-spacing:0;margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;font-size:14px}
.tbl th,.tbl td{padding:13px 15px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.tbl thead th{background:#f2f7fd;color:var(--navy);font-size:13.6px;white-space:nowrap}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl tbody th{background:#fbfdff;color:var(--navy);font-weight:700;width:132px;white-space:nowrap}
.tbl td b{color:var(--navy)}
.tbl .yes{color:var(--green);font-weight:800}
.tbl .no{color:#a6b5c5}

/* ---------- 上下篇 ---------- */
.pn{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:34px}
.pn a{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px 17px;font-size:13.6px;color:var(--muted);transition:.2s;display:block}
.pn a:hover{border-color:#cfe1fb;box-shadow:var(--shadow-l);color:var(--navy)}
.pn b{display:block;font-size:15px;color:var(--navy);margin-top:3px}
.pn .r{text-align:right}

/* ---------- 页内锚点条 ---------- */
.toc{position:sticky;top:66px;z-index:40;background:rgba(245,248,252,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.toc .wrap{display:flex;gap:6px;overflow-x:auto;padding-top:9px;padding-bottom:9px;scrollbar-width:none}
.toc .wrap::-webkit-scrollbar{display:none}
.toc a{flex:none;font-size:13px;font-weight:700;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 13px;white-space:nowrap;transition:.2s}
.toc a:hover,.toc a.on{color:var(--blue-d);border-color:#cfe1fb;background:var(--blue-l)}

/* ---------- 时间轴（大事记） ---------- */
.tl{margin-top:30px;position:relative}
.tl::before{content:"";position:absolute;left:63px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--blue),#dbe7f4)}
.yr{display:grid;grid-template-columns:63px 1fr;gap:0 26px;margin-top:26px}
.yr:first-child{margin-top:0}
.yr .y{position:relative;text-align:right;padding-right:0;font-weight:800;color:var(--navy);font-size:19px;letter-spacing:-.4px;line-height:1.2;padding-top:2px}
.yr .y::after{content:"";position:absolute;right:-34px;top:8px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--blue);box-shadow:0 0 0 4px var(--bg)}
.yr.hot .y::after{border-color:var(--amber)}
.yr ul{display:grid;gap:8px}
.yr li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:11px 15px;font-size:14.2px;color:#3c5169;box-shadow:var(--shadow-l)}
.yr li b{color:var(--navy)}
.yr li em{font-style:normal;font-size:11.5px;font-weight:800;color:var(--blue-d);background:var(--blue-l);border-radius:6px;padding:1px 7px;margin-right:9px}
.yr li.new em{color:#8a5a00;background:var(--amber-l)}
.yfilter{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.yfilter button{font:inherit;font-size:13px;font-weight:700;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 15px;cursor:pointer;transition:.2s}
.yfilter button:hover{color:var(--blue);border-color:#cfe1fb}
.yfilter button.on{color:#fff;background:var(--blue);border-color:var(--blue)}

/* ---------- 联系 ---------- */
.cinfo{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.cinfo .tile{gap:7px}
.cinfo .v{font-size:19px;font-weight:800;color:var(--navy);letter-spacing:-.3px}
.cinfo .v.s2{font-size:17px;letter-spacing:-.1px;line-height:1.55}
.cinfo .s{font-size:13.2px;color:var(--muted)}
.qr{display:grid;place-items:center;gap:12px;margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow-l)}
.qr img{width:190px;height:190px;object-fit:contain;border-radius:10px}
.qr p{font-size:13.4px;color:var(--muted);text-align:center}

/* ---------- 结语 CTA / 页脚 ---------- */
.cta{background:linear-gradient(120deg,#0f2544,#164a86 62%,#1a73e8);color:#fff;padding:60px 0;margin-top:60px}
.cta .wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:center}
.cta h2{font-size:28px;letter-spacing:-.4px}
.cta p{margin-top:12px;color:#cfdcec;font-size:16px;max-width:620px}
.cta-act{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
footer{background:#0c1e36;color:#8fa6c0;padding:36px 0;font-size:13.5px}
footer .wrap{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}
footer b{color:#dbe7f4}
footer .cols{display:flex;flex-wrap:wrap;gap:26px;font-size:13px}
footer .beian{flex:0 0 100%;margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:13px;letter-spacing:.02em}
footer a{color:#a9c4e4}
footer a:hover{color:#fff}

/* ---------- 渐显 ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
.hide{display:none!important}

@media (max-width:1080px){
  .hero.two .wrap{grid-template-columns:1fr;gap:34px}
  .hero-art{max-width:340px;justify-self:start}
  .cards,.g3,.quotes,.pains{grid-template-columns:repeat(2,1fr)}
  .g4,.mods,.metrics,.cinfo{grid-template-columns:repeat(2,1fr)}
  .logos{grid-template-columns:repeat(4,1fr)}
  .cta .wrap{grid-template-columns:1fr}
  .cta-act{justify-content:flex-start}
  .bul{grid-template-columns:1fr}
}
@media (max-width:720px){
  .topbar .wrap{height:auto;padding-top:11px;padding-bottom:11px;flex-wrap:wrap;gap:12px}
  .nav{order:3;width:100%;margin-left:0}
  .toc{top:0;position:relative}
  .hero .wrap{padding-top:48px;padding-bottom:52px}
  .hero h1{font-size:30px}
  .hero .lead{font-size:16px}
  .hero-stats,.cards,.g2,.g3,.g4,.mods,.metrics,.pains,.quotes,.shots,.cinfo,.pn{grid-template-columns:1fr}
  .logos{grid-template-columns:repeat(2,1fr)}
  .sec{padding:44px 0 6px}
  .sec-h{grid-template-columns:1fr}
  .sec-h h2,.cta h2{font-size:23px}
  .cap{grid-template-columns:1fr;gap:14px}
  .yr{grid-template-columns:52px 1fr;gap:0 16px}
  .tl::before{left:52px}
  .yr .y::after{right:-24px}
  .tbl{display:block;overflow-x:auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
  .logos div:hover img{transform:none}
  html{scroll-behavior:auto}
}