/* ============================================================
   爱得科技 GEO 官网 · 全站共享样式（腾讯云企业级视觉规范）
   规范要点：主色仅在 CTA/图标/链接等功能性场景使用；
   边框分明、阴影克制；圆角 4–12px；Hover 用底色/边框变化，不放大；
   字体中文 PingFang SC 优先、西文 Inter 互补；字号 4 的倍数体系 + 负字距。
   ============================================================ */
:root{
  --bg:#FFFFFF;--card:#FFFFFF;--page-soft:#F5F8FF;
  --ink:#10142B;--text:#1D253B;--muted:#5A6785;--faint:#8A96AD;--line:#E3E9F5;
  --accent:#2B5CFF;--accent-deep:#1B3FD6;--accent-soft:#EAF1FF;--focus:#2B5CFF;
  --violet:#7B4BFF;
  --grad-brand:linear-gradient(100deg,#2B5CFF 0%,#5A50FF 48%,#8B4BFF 100%);
  --success:#00B42A;--error:#F53F3F;--warn:#FF7D00;--warn-bg:#FFF7E8;--warn-line:#FFE4B8;
  --radius-sm:4px;--radius:6px;--radius-lg:10px;--maxw:1200px;
  --shadow-sm:0 1px 2px rgba(24,40,90,.03);
  --shadow:0 6px 20px rgba(36,58,120,.08);
  --shadow-blue:0 10px 28px rgba(43,92,255,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',Inter,system-ui,sans-serif;font-size:15px;line-height:1.6;color:var(--text);background:var(--bg);overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
ul,ol{margin-left:1.2rem}
li{margin:.25rem 0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:2px}

/* ---------- header（参考云厂商活动页：半透明浅蓝渐变条、小字密排、实心 CTA） ---------- */
.site-head{position:sticky;top:0;z-index:50;background:linear-gradient(90deg,rgba(247,250,255,.5) 0%,rgba(239,245,255,.4) 48%,rgba(243,240,255,.5) 100%);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(197,213,255,.5);transition:box-shadow .2s}
.site-head.scrolled{box-shadow:0 2px 12px rgba(0,0,0,.06)}
.nav{display:flex;align-items:center;gap:1rem;height:52px}
.brand{display:flex;align-items:center;gap:.5rem;font-weight:800;font-size:.9375rem;letter-spacing:-.03em;color:#0B1B4D;text-decoration:none}
.brand:hover{text-decoration:none}
.brand svg{display:none}
.brand::before{content:"";width:44px;height:26px;flex:none;background:url("../img/logo.png") center/contain no-repeat}
.nav-links{display:none;gap:1.15rem;margin-left:auto;align-items:center}
.nav-links a{color:#2B344D;text-decoration:none;font-weight:500;font-size:.8125rem;white-space:nowrap}
.nav-links a:hover{color:var(--accent);text-decoration:none}
.nav-links a.active{color:var(--accent);font-weight:700}
.nav>.btn{margin-left:auto;height:32px;padding:0 1.05rem;font-size:.8125rem;font-weight:600;border-radius:4px}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;margin-left:auto;border:1px solid #127bc8;border-radius:var(--radius-sm);background:#127bc8;color:#fff;cursor:pointer}
.nav-toggle svg{width:22px;height:22px}
@media(min-width:880px){.nav-links{display:flex}.nav>.btn{margin-left:0}.nav-toggle{display:none}.nav-links+.btn{margin-left:1rem}}
.mobile-menu{display:none;flex-direction:column;gap:.2rem;padding:.5rem 20px 1rem;border-bottom:1px solid var(--line);background:rgba(255,255,255,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:.6rem .2rem;color:var(--text);font-weight:500;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:none}

/* ---------- buttons（统一纯色 #127bc8） ---------- */
.btn{display:inline-flex;align-items:center;gap:.4rem;font:inherit;font-weight:500;font-size:.875rem;text-decoration:none;cursor:pointer;border:1px solid transparent;border-radius:var(--radius-sm);padding:.6rem 1.2rem;transition:background-color .2s,color .2s,border-color .2s}
.btn-sm{padding:.35rem .85rem;font-size:.8125rem}
.btn-primary{background:#127bc8;color:#fff;border-color:#127bc8}
.btn-primary:hover{filter:brightness(1.1);color:#fff;text-decoration:none}
.btn-outline{background:#127bc8;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline:hover{filter:brightness(1.1);text-decoration:none}
.btn-ghost{background:#127bc8;color:#fff;border-color:#127bc8}
.btn-ghost:hover{color:#fff;filter:brightness(1.1)}
.btn:active{opacity:.88}

/* ---------- typography ---------- */
.kicker,.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-size:.8125rem;font-weight:600;letter-spacing:.03em;color:var(--accent);margin-bottom:1rem}
.kicker::before,.eyebrow::before{content:"";width:6px;height:6px;flex:none;border-radius:50%;background:var(--violet);box-shadow:0 0 0 4px rgba(123,75,255,.14)}
h1,h2,h3{color:var(--ink)}
h1{font-size:clamp(2.25rem,5vw,3.75rem);font-weight:800;line-height:1.12;letter-spacing:-.028em;margin-bottom:1rem}
h1 .hot{background:linear-gradient(95deg,#2B5CFF 0%,#7B4BFF 72%);-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:500;line-height:1.35;letter-spacing:-.005em;margin-bottom:.55rem}
h3{font-size:1.0625rem;font-weight:600;line-height:1.45;letter-spacing:-.01em;margin-bottom:.45rem}
.lede{color:var(--muted);font-size:1rem;line-height:1.65;max-width:42em;margin-bottom:1.6rem}
.sec-lede{color:var(--muted);font-size:.9375rem;line-height:1.65;max-width:44em;margin:0 auto}
.sec{padding:clamp(3rem,5.5vw,4.5rem) 0;background:linear-gradient(180deg,#F6F9FF 0%,#FAF8FF 100%);border-top:1px solid var(--line)}
.sec-head{text-align:center;max-width:52em;margin:0 auto clamp(1.8rem,3vw,2.4rem)}
.sec-head .kicker{margin-bottom:.9rem}
.sec-head .sec-lede{margin-top:.4rem}

/* ---------- hero ---------- */
.hero{position:relative;display:flex;align-items:center;min-height:360px;padding:clamp(3rem,5vw,4.5rem) 0;background:radial-gradient(760px 420px at 78% 20%,rgba(139,91,255,.20),transparent 65%),radial-gradient(900px 520px at 12% 92%,rgba(43,92,255,.16),transparent 65%),linear-gradient(110deg,#F2F7FF 0%,#E6EEFF 38%,#E9E4FF 72%,#F6EFFF 100%);overflow:hidden}
.hero > .wrap{width:100%}
.hero .wrap{position:relative;z-index:1}
.hero::before{content:"";position:absolute;top:-160px;right:-60px;width:520px;height:520px;background:radial-gradient(circle,rgba(123,75,255,.16),transparent 68%);pointer-events:none}
.hero::after{content:"";position:absolute;bottom:-220px;left:-140px;width:520px;height:520px;background:radial-gradient(circle,rgba(43,92,255,.14),transparent 68%);pointer-events:none}
.hero-grid{display:grid;gap:2rem;align-items:center}
.hero h1{color:var(--ink)}
.hero .hot{background:linear-gradient(95deg,#2B5CFF 0%,#7B4BFF 72%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lede{color:var(--muted)}
.hero-img{width:100%;background:#fff;border:1px solid #DCE5FF;border-radius:var(--radius);padding:.5rem;box-shadow:0 12px 32px rgba(43,74,160,.12)}
@media(min-width:940px){.hero-grid{grid-template-columns:1.05fr .95fr}}
/* 统一 Hero 高度：首页轮播与所有内页在同一屏宽下完全一致。
   min-height 取该断点内文案最多一页的自然高度并留少量余量；
   flex 垂直居中让文字较少的页面不留大片空白，内容超出时仍可自然增高。 */
@media(max-width:360px){.hero{min-height:390px}}
@media(min-width:940px){.hero{min-height:400px}}
@media(min-width:1200px){.hero{min-height:430px}}
.cta-row{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:1.4rem}

/* ---------- Hero 文字排版（首页轮播 + 内页单图共用：纯色小标签 + 超大标题 + 紧凑说明） ---------- */
.hero .kicker{display:inline-flex;align-items:center;gap:.5rem;font-style:normal;font-size:.8125rem;font-weight:700;letter-spacing:.06em;background:none;-webkit-background-clip:initial;background-clip:initial;color:#127bc8;margin-bottom:1.1rem}
.hero .kicker::before{display:block;content:"";width:14px;height:14px;flex:none;border-radius:0;background:#127bc8;box-shadow:none;clip-path:polygon(50% 0%,60% 40%,100% 50%,60% 60%,50% 100%,40% 60%,0% 50%,40% 40%)}
.hero-banner h1{font-size:clamp(1.5rem,3.25vw,2.75rem);font-weight:900;line-height:1.14;letter-spacing:-.045em;margin-bottom:.85rem;color:#0B1B4D;white-space:nowrap}
.hero-banner .hot{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:900;margin-left:.12em}
.hero .lede{font-size:.875rem;line-height:1.7;color:#3B4761;max-width:36em;margin-bottom:.35rem}
.hero .lede-points{font-size:.875rem;line-height:1.7;color:#5A6785;letter-spacing:.02em;margin-bottom:0}
.hero .cta-row{gap:.7rem;margin-top:1.6rem}
.hero .btn{font-size:.8125rem;font-weight:600;border-radius:5px;padding:.6rem 1.15rem}
/* 主按钮实心、次按钮描边（虚），hover 时填充为同一纯色 */
.hero .cta-row .btn-outline{background:transparent;color:#127bc8;border-color:#127bc8}
.hero .cta-row .btn-outline:hover{background:#127bc8;color:#fff;border-color:#127bc8;filter:none;text-decoration:none}

/* ---------- 内页 Hero：单张背景图，静态不轮播 ---------- */
/* 图片地址由各页面在 <section class="hero"> 上用内联 background-image 指定（路径相对页面）；
   此处只负责定位裁切与左侧可读性遮罩，遮罩走伪元素以免覆盖页面传入的图片。 */
.hero:not(.hero-banner){background-position:center center;background-size:cover;background-repeat:no-repeat}
.hero:not(.hero-banner)::before{content:"";position:absolute;inset:0;width:auto;height:auto;pointer-events:none;background:linear-gradient(90deg,rgba(245,250,255,.82) 0%,rgba(245,250,255,.58) 40%,rgba(245,250,255,0) 70%)}
.hero:not(.hero-banner)::after{content:none}
.hero:not(.hero-banner) .hero-grid{grid-template-columns:1fr}
.hero:not(.hero-banner) .hero-grid > div:nth-child(2){display:none}
.hero:not(.hero-banner) h1{font-size:clamp(1.75rem,3.6vw,3rem);font-weight:900;line-height:1.2;letter-spacing:-.04em;margin-bottom:.85rem;color:#0B1B4D}
@media(min-width:940px){.hero:not(.hero-banner) .hero-grid > div:first-child{max-width:72%}}
@media(max-width:939px){
  .hero:not(.hero-banner){background-position:12% center}
  .hero:not(.hero-banner)::before{background:linear-gradient(180deg,rgba(242,248,255,.92) 0%,rgba(242,248,255,.82) 55%,rgba(242,248,255,.15) 100%)}
}

/* ---------- 首页 Hero 三帧图文轮播 ---------- */
/* 三帧叠放在同一 grid 格：高度取最高帧，切换不跳动；
   未加载 JS 时第一帧静态可见，加载后由 .is-active 控制。 */
.hero-banner .hero-slider{display:grid;position:relative}
.hero-banner .hero-slide{grid-area:1/1;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(8px);transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s}
.hero-banner .hero-slide:first-child{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
.hero-banner .hero-slider.is-ready .hero-slide{opacity:0;visibility:hidden;pointer-events:none;transform:translateY(8px)}
.hero-banner .hero-slider.is-ready .hero-slide.is-active{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
/* 旧文案先快速淡出上移，新文案稍后淡入归位，避免两帧文字半透明重影 */
.hero-banner .hero-slide.is-active{transition:opacity .42s cubic-bezier(.4,0,.2,1) .1s,transform .42s cubic-bezier(.4,0,.2,1) .1s,visibility 0s}
.hero-banner .slide-title{font-size:clamp(1.5rem,3.25vw,2.75rem);font-weight:900;line-height:1.14;letter-spacing:-.045em;margin-bottom:.85rem;color:#0B1B4D;white-space:nowrap}
/* 控件层上提到全宽 Hero：.hero-controls 覆盖整个 Hero（相对 .hero 定位），
   箭头不再受 .wrap(1200px) 内容区限制，贴视口左右两侧；
   透明层 pointer-events:none，仅箭头/圆点 auto，不拦截文字与链接的选择点击。 */
.hero-banner .wrap{position:static}
.hero-banner .hero-slider{z-index:1}
.hero-controls{position:absolute;inset:0;z-index:2;pointer-events:none;display:none;margin:0;opacity:0;transition:opacity .25s ease}
.hero-controls.is-ready{display:block}
/* 切换控件默认隐藏，鼠标移入 Banner 或键盘 Tab 聚焦（JS 加 .controls-visible）时淡入；
   无 hover 的触摸设备保持常显。 */
.hero-banner:hover .hero-controls.is-ready,
.hero-banner.controls-visible .hero-controls.is-ready{opacity:1}
@media (hover:none),(pointer:coarse){
  .hero-controls.is-ready{opacity:1}
}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;pointer-events:auto;display:inline-flex;align-items:center;justify-content:center;padding:0;border:1px solid rgba(255,255,255,.75);border-radius:50%;background:rgba(255,255,255,.42);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:rgba(16,20,43,.8);font-size:1.6rem;line-height:1;cursor:pointer;box-shadow:0 4px 16px rgba(30,54,110,.12);transition:background-color .2s,border-color .2s,color .2s}
.hero-arrow[data-slide="prev"]{left:clamp(12px,3vw,48px)}
.hero-arrow[data-slide="next"]{right:clamp(12px,3vw,48px)}
.hero-arrow:hover{border-color:var(--accent);color:var(--accent);background:rgba(255,255,255,.94)}
.hero-dots{position:absolute;bottom:clamp(1rem,2.5vw,1.8rem);left:50%;transform:translateX(-50%);pointer-events:auto;display:flex;align-items:center;gap:.5rem}
@media(max-width:680px){
  .hero-arrow{width:32px;height:32px;font-size:1.3rem;background:rgba(255,255,255,.55);top:auto;bottom:calc(clamp(1rem,2.5vw,1.8rem) - 12px);transform:none}
  .hero-banner h1,.hero-banner .slide-title{font-size:clamp(1.15rem,6vw,2.25rem)}
}
/* 中等宽度下 .wrap 贴近视口边缘，箭头会压住文案，给内容留出左右安全区 */
@media(min-width:681px) and (max-width:1360px){
  .hero-banner .wrap{padding-left:88px;padding-right:88px}
}
.hero-dot{width:8px;height:8px;padding:0;border:none;border-radius:999px;background:rgba(43,92,255,.28);cursor:pointer;transition:width .35s cubic-bezier(.4,0,.2,1),background-color .35s cubic-bezier(.4,0,.2,1)}
.hero-dot.is-active{width:24px;background:var(--accent)}
.hero-dot:hover{background:var(--violet)}
/* ---------- 首页 Hero 三帧整幅背景图 ---------- */
/* 新图淡入覆盖在旧图之上，旧图始终保持不透明，
   过渡结束时才瞬间隐藏，全程不露出底色、不出现半透明叠加。 */
.hero-banner::before,.hero-banner::after{content:none}
/* 图片地址由 index.html 各 .hero-bg 的内联 background-image 指定（路径相对页面） */
.hero-banner .hero-bg{position:absolute;inset:0;z-index:0;opacity:0;pointer-events:none;background-position:center center;background-size:cover;background-repeat:no-repeat;transition:opacity .6s cubic-bezier(.4,0,.2,1)}
.hero-banner .hero-bg.is-active{opacity:1}
.hero-banner .hero-bg.is-instant{transition:none}
.hero-banner .hero-grid{grid-template-columns:1fr}
.hero-banner .hero-dot{box-shadow:0 0 0 1px rgba(255,255,255,.9)}
@media(min-width:940px){.hero-banner .hero-copy{max-width:72%}}
/* 窄屏下背景图主视觉会压到文字，改为取图片左侧浅色纹理区并叠一层轻微渐变 */
@media(max-width:939px){
  .hero-banner .hero-bg{background-position:12% center}
  .hero-banner .hero-bg::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(242,248,255,.6) 0%,rgba(242,248,255,.45) 55%,rgba(242,248,255,0) 100%)}
}
@media(prefers-reduced-motion:reduce){.hero-banner .hero-slide{transition:none;transform:none}.hero-banner .hero-bg{transition:none}}

/* ---------- cards ---------- */
.cards{display:grid;gap:1rem}
.cards-2{grid-template-columns:1fr}
.cards-3{grid-template-columns:1fr}
.cards-4{grid-template-columns:1fr}
@media(min-width:680px){.cards-2{grid-template-columns:repeat(2,1fr)}.cards-3{grid-template-columns:repeat(2,1fr)}.cards-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:980px){.cards-3{grid-template-columns:repeat(3,1fr)}.cards-4{grid-template-columns:repeat(4,1fr)}}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;transition:border-color .2s,box-shadow .2s;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand);border-radius:var(--radius) var(--radius) 0 0;opacity:.85}
.card:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.cicon{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;border-radius:6px;background:var(--accent-soft);color:var(--accent);margin-bottom:1rem}
.cicon svg{width:24px;height:24px}
.card h3{font-size:1.125rem;margin-bottom:.5rem}
.card p{font-size:.9375rem;line-height:1.65;color:var(--muted);margin-bottom:1rem}
.card .more{margin-top:auto;font-weight:600;color:var(--accent);font-size:.875rem}

/* ---------- 首页「四重价值」：浅蓝圆角容器 + 四列圆形图标 ---------- */
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.6rem 1rem;padding:clamp(1.5rem,3vw,2.2rem) 1rem;background:#F7FAFF;border:1px solid #DBE7FF;border-radius:12px}
@media(min-width:760px){.value-grid{grid-template-columns:repeat(4,1fr);gap:1rem}}
@media(max-width:420px){.value-grid{gap:1.4rem .6rem;padding-left:.7rem;padding-right:.7rem}.value-item p{font-size:.75rem}}
.value-item{text-align:center;min-width:0}
.value-ico{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;margin:0 auto .9rem;border-radius:50%;background:radial-gradient(circle at 50% 38%,#FFFFFF 0%,#ECF4FF 58%,#DBEAFF 100%);box-shadow:0 0 0 7px rgba(43,92,255,.035)}
.value-ico svg{width:22px;height:22px;color:var(--accent)}
.value-item h3{font-size:1rem;font-weight:700;color:var(--text);line-height:1.4;margin-bottom:.45rem}
.value-item p{font-size:.8125rem;line-height:1.7;color:var(--muted);margin:0}

/* ---------- 首页「我们靠什么让 AI 愿意引用你」：四列图标 + 底部示意图 ---------- */
.method-grid{display:grid;grid-template-columns:1fr;gap:1.8rem}
@media(min-width:380px){.method-grid{grid-template-columns:repeat(2,1fr);gap:1.5rem 1rem}}
@media(min-width:940px){.method-grid{grid-template-columns:repeat(4,1fr);gap:1.25rem}}
.method-item{position:relative;display:flex;flex-direction:column;min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow-sm);transition:border-color .2s,box-shadow .2s}
.method-item::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand);border-radius:var(--radius) var(--radius) 0 0;opacity:.85}
.method-item:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.method-ico{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;margin-bottom:.9rem;color:var(--ink)}
.method-ico svg{width:22px;height:22px}
.method-item h3{font-size:1.0625rem;font-weight:600;color:var(--ink);line-height:1.4;margin-bottom:.5rem}
.method-item p{font-size:.8125rem;line-height:1.7;color:#6B768F;margin:0 0 1.1rem;min-height:2.8em}
.method-shot{width:100%;height:clamp(120px,11vw,150px);margin-top:auto;border-radius:3px;overflow:hidden;background:#EAF2FF}
.method-shot img{display:block;width:100%;height:100%;object-fit:cover;filter:saturate(1.7) brightness(1.02)}
.method-item:nth-child(2) .method-shot img{filter:saturate(1.55) hue-rotate(-10deg)}
.method-item:nth-child(3) .method-shot img{filter:saturate(1.8) hue-rotate(8deg)}
.method-item:nth-child(4) .method-shot img{filter:saturate(1.6) hue-rotate(-6deg)}
@media(max-width:420px){.method-item{padding:1rem}.method-item p{font-size:.75rem}.method-shot{height:112px}}

/* ---------- 首页「为什么做 GEO」：渐变横卡 + 左文右示意图 ---------- */
.why-cards{display:grid;gap:1rem;grid-template-columns:1fr}
@media(min-width:680px){.why-cards{grid-template-columns:repeat(2,1fr)}}
.why-card{position:relative;display:flex;align-items:center;min-height:210px;padding:1.5rem 1.6rem;border-radius:14px;overflow:hidden;background:linear-gradient(110deg,#E3F0FF 0%,#E7ECFF 52%,#EFE9FF 100%)}
.why-card:nth-child(2){background:linear-gradient(110deg,#E7F1FF 0%,#E9EBFF 52%,#F0E9FF 100%)}
.why-card:nth-child(3){background:linear-gradient(110deg,#E5EEFF 0%,#EDE9FF 52%,#F4E9FF 100%)}
.why-card:nth-child(4){background:linear-gradient(110deg,#E8F2FF 0%,#EAE9FF 52%,#F2EAFF 100%)}
.why-copy{position:relative;z-index:2;width:58%;max-width:21em}
.why-card h3{font-size:1.0625rem;font-weight:700;color:#1B2440;letter-spacing:-.01em;margin-bottom:.55rem}
.why-card p{font-size:.8125rem;line-height:1.7;color:#4B5872;margin-bottom:1.15rem}
.why-more{display:inline-flex;align-items:center;gap:.45rem;font-size:.8125rem;font-weight:600;color:#2B5CFF;text-decoration:none}
.why-more:hover{text-decoration:underline}
.why-more span{transition:transform .2s}
.why-card:hover .why-more span{transform:translateX(3px)}
.why-art{position:absolute;right:clamp(.8rem,2vw,1.25rem);top:50%;transform:translateY(-50%);width:clamp(112px,13vw,176px);height:clamp(112px,13vw,176px);aspect-ratio:1/1;object-fit:cover;border-radius:12px;box-shadow:0 6px 18px rgba(43,74,160,.08);-webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 18%);mask-image:linear-gradient(90deg,transparent 0%,#000 18%)}
@media(max-width:420px){.why-copy{width:64%}.why-art{width:112px;height:112px;right:.75rem}}

/* ---------- 首页「分行业解决方案」：横向 Tab + 左文右图 ---------- */
.sol-showcase{margin-top:.4rem}
.sol-tabs{display:flex;flex-wrap:wrap;gap:0 clamp(1.1rem,2.6vw,2.4rem);border-bottom:1px solid var(--line);margin-bottom:clamp(1.6rem,3vw,2.4rem)}
.sol-tab{display:inline-flex;align-items:center;gap:.45rem;padding:.75rem .1rem .9rem;background:none;border:0;border-bottom:2px solid transparent;color:var(--muted);font-size:.9375rem;font-weight:500;white-space:nowrap;cursor:pointer;transition:color .2s,border-color .2s}
.sol-tab-ico{width:16px;height:16px;flex:none}
.sol-tab:hover{color:var(--accent)}
.sol-tab.is-active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}
.sol-body{display:grid;grid-template-columns:1fr;gap:clamp(1.5rem,3vw,2.6rem);align-items:center}
@media(min-width:900px){.sol-body{grid-template-columns:1fr 1.05fr}}
.sol-panels{min-width:0}
.sol-panel{display:none}
.sol-panel.is-active{display:flex;flex-direction:column;min-height:clamp(260px,26vw,340px);animation:solIn .3s ease}
@keyframes solIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.sol-panel.is-active{animation:none}}
.sol-panel h3{font-size:clamp(1.375rem,2vw,1.75rem);font-weight:700;color:var(--ink);line-height:1.35;margin-bottom:.9rem}
.sol-panel p{font-size:.9375rem;line-height:1.8;color:var(--muted);max-width:34em;margin-bottom:0}
.sol-actions{display:flex;align-items:center;gap:1.4rem;flex-wrap:wrap;margin-top:auto;padding-top:2rem}
.sol-actions .btn{border-radius:3px}
.sol-more{font-size:.875rem;font-weight:600;color:var(--ink);text-decoration:none}
.sol-more:hover{color:var(--accent)}
.sol-visual{position:relative;min-height:clamp(260px,28vw,380px);border-radius:10px;overflow:hidden;background:linear-gradient(135deg,#8FC4FF 0%,#4A90F7 46%,#2B5CFF 100%);transition:filter .35s ease}
.sol-body[data-active="1"] .sol-visual{filter:hue-rotate(22deg)}
.sol-body[data-active="2"] .sol-visual{filter:hue-rotate(-22deg)}
.sol-body[data-active="3"] .sol-visual{filter:hue-rotate(45deg)}
.sol-body[data-active="4"] .sol-visual{filter:hue-rotate(-45deg)}
.sol-body[data-active="5"] .sol-visual{filter:hue-rotate(70deg)}
.sol-window{position:absolute;left:11%;top:15%;width:76%;height:70%;background:#fff;border-radius:8px;box-shadow:0 18px 42px rgba(16,45,110,.20);overflow:hidden}
.sol-win-head{display:flex;align-items:center;gap:5px;height:26px;padding:0 10px;background:#F4F8FF;border-bottom:1px solid #E7EFFD}
.sol-win-head span{width:5px;height:5px;border-radius:50%;background:#CBD9F4}
.sol-win-body{padding:clamp(14px,2vw,22px)}
.sol-line{display:block;height:6px;margin-bottom:11px;border-radius:3px;background:#E5ECFA}
.sol-line.l1{width:38%}.sol-line.l2{width:84%}.sol-line.l3{width:62%}
.sol-btn{display:block;width:76px;height:20px;margin-top:22px;border-radius:3px;background:linear-gradient(90deg,#2B5CFF,#6A5BFF)}
.sol-float-card{position:absolute;right:7%;bottom:9%;width:22%;height:42%;padding:10px;border-radius:8px;background:#fff;box-shadow:0 12px 30px rgba(16,45,110,.22)}
.sol-float-card i{display:block;height:4px;margin-bottom:7px;border-radius:2px;background:#E1EAFB}
.sol-float-card i:nth-child(2){width:70%}.sol-float-card i:nth-child(3){width:85%}
.sol-float-card b{display:block;width:60%;height:12px;margin-top:12px;border-radius:2px;background:#DCE8FF}
.sol-badge{position:absolute;border-radius:10px;transform:rotate(-18deg);box-shadow:0 8px 20px rgba(16,45,110,.18)}
.sol-badge-1{left:4%;bottom:20%;width:48px;height:48px;background:linear-gradient(135deg,#7B4BFF,#2B5CFF)}
.sol-badge-2{right:6%;top:10%;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#00C6A7,#2BB4FF)}

/* ---------- steps ---------- */
.steps{display:grid;gap:1rem}
@media(min-width:780px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;transition:border-color .2s,box-shadow .2s}
.step:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.step .num{display:inline-flex;width:36px;height:36px;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent);font-weight:700;margin-bottom:.9rem}
.step h3{font-size:1.0625rem;margin-bottom:.4rem}
.step p{color:var(--muted);font-size:.9375rem;line-height:1.6;margin:0}

/* ---------- process table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table.process{width:100%;border-collapse:collapse;min-width:700px}
table.process th,table.process td{padding:.9rem 1rem;text-align:left;border-bottom:1px solid var(--line);font-size:.9375rem;vertical-align:top}
table.process th{background:var(--page-soft);color:var(--text);font-weight:600;white-space:nowrap}
table.process tr:last-child td{border-bottom:none}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:.6rem}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.faq-item summary{cursor:pointer;padding:1rem 1.1rem;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:1rem;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:1.3rem;font-weight:700;line-height:1}
.faq-item[open] summary::after{content:"\2013"}
.faq-item .ans{padding:0 1.1rem 1.1rem;color:var(--muted);font-size:.9375rem}

/* ---------- case / insight ---------- */
.case-card,.insight-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem}
.meta-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:.7rem}
.tag{font-size:.75rem;font-weight:600;letter-spacing:.02em;color:var(--accent);background:var(--accent-soft);border-radius:2px;padding:.25rem .6rem}
.case-card h3,.insight-item h3{font-size:1.125rem;margin-bottom:.5rem}
.case-card .field-row{display:grid;gap:.3rem;margin:.5rem 0}
.case-card .field-row .k{font-weight:600;color:var(--accent-deep);font-size:.875rem}
.case-card .field-row .v{color:var(--muted);font-size:.9375rem}
.insight-item p{color:var(--muted);font-size:.9375rem;margin-bottom:.6rem}
.insight-item .date{font-size:.8125rem;color:var(--faint)}

/* ---------- industry ---------- */
.industry-grid{display:grid;gap:1rem}
@media(min-width:680px){.industry-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:980px){.industry-grid{grid-template-columns:repeat(3,1fr)}}

/* ---------- cta band ---------- */
.cta-band{background:var(--grad-brand);color:#fff;border:none;border-radius:var(--radius-lg);padding:clamp(2.4rem,4.5vw,3.4rem);margin:clamp(2rem,3.5vw,3rem) 0;text-align:center;box-shadow:var(--shadow-blue)}
.cta-band h2{color:#fff;margin-bottom:.6rem}
.cta-band p{color:#E5EAFF;margin:0 auto 1.5rem;max-width:38em}
.cta-band .btn-primary{background:#127bc8;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-primary:hover{filter:brightness(1.1)}
.cta-band .btn-outline{background:#127bc8;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-outline:hover{filter:brightness(1.1)}

/* ---------- form ---------- */
.form-grid{display:grid;gap:.95rem}
.field{display:flex;flex-direction:column;gap:.35rem}
.field.full{grid-column:1/-1}
.field label{font-weight:600;font-size:.9375rem}
.input,textarea,select{font:inherit;width:100%;padding:.65rem .85rem;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text)}
.input:hover,textarea:hover,select:hover{border-color:var(--accent)}
.input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--focus);outline-offset:1px;border-color:var(--focus)}
@media(min-width:680px){.form-grid{grid-template-columns:1fr 1fr}.field.full{grid-column:1/-1}}

/* ---------- contact ---------- */
.contact-grid{display:grid;gap:1.6rem}
@media(min-width:880px){.contact-grid{grid-template-columns:1.1fr .9fr}}
.info-list{list-style:none;display:grid;gap:.8rem;margin:0}
.info-list li{display:flex;gap:.8rem;align-items:flex-start}
.info-list .k{font-weight:600;color:var(--accent-deep);min-width:72px;flex:none}
.info-list .v{color:var(--muted)}
.map-frame{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}

/* ---------- notice / placeholder ---------- */
.notice{background:var(--warn-bg);border:1px solid var(--warn-line);color:var(--warn);border-radius:var(--radius-sm);padding:1rem 1.1rem;font-size:.9375rem;margin:.6rem 0}
.notice strong{color:var(--warn)}
.ph-note{font-size:.8125rem;color:var(--faint);margin-top:.6rem}
.placeholder-box{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:1.5rem;color:var(--muted);text-align:center}

/* ---------- footer ---------- */
.site-foot{background:#F8FAFF;color:var(--muted);border-top:1px solid var(--line);padding:clamp(2.2rem,4vw,3rem) 0;margin-top:0}
.foot-grid{display:grid;gap:1.4rem}
@media(min-width:780px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr}}
.brand-f{font-weight:700;color:var(--ink);font-size:1.0625rem;margin-bottom:.6rem}
.foot-col h4{color:var(--ink);font-size:.9375rem;margin-bottom:.7rem}
.foot-links{display:flex;flex-direction:column;gap:.5rem}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--accent);text-decoration:none}
.nap{font-size:.875rem;color:var(--muted);line-height:1.85}
.fine{font-size:.8125rem;color:var(--faint);border-top:1px solid var(--line);padding-top:1rem;margin-top:.4rem}
.foot-bottom{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;align-items:center;font-size:.8125rem;color:var(--faint)}

@media(max-width:560px){.sec{padding:2.6rem 0}.wrap{padding:0 16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important}}

/* 常见问答页 - GEO 知识库子标题 */
.sub-h{font-size:1.25rem;font-weight:700;color:var(--ink);margin:2rem 0 .9rem;letter-spacing:-.01em}
.sub-h:first-of-type{margin-top:.4rem}

/* ---------- 增强模块：对比表 / 旅程 / 误区 / 列表 ---------- */
.compare{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;margin-top:.4rem}
.compare th,.compare td{padding:.85rem 1rem;text-align:left;font-size:.9375rem;border-bottom:1px solid var(--line);vertical-align:top}
.compare thead th{background:var(--page-soft);color:var(--text);font-weight:600}
.compare tbody th{font-weight:600;color:var(--ink);background:#FCFDFE;white-space:nowrap}
.compare tr:last-child td,.compare tr:last-child th{border-bottom:none}
.compare .yes{color:var(--success);font-weight:600}
.compare .no{color:var(--error);font-weight:600}

/* ---------- 首页「GEO vs SEO」对比表专属增强 ----------
   仅作用于 .cmp-box，文章页 / 知识库页的通用 .compare 保持原样。 */
.cmp-box{margin-top:.4rem;padding:clamp(.55rem,1.3vw,.9rem);border:1px solid #DBE7FF;border-radius:12px;background:linear-gradient(180deg,#F5F9FF 0%,#F9F7FF 100%);box-shadow:var(--shadow-sm);overflow-x:auto}
.cmp-box .compare{min-width:660px;margin:0;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.cmp-box .compare th,.cmp-box .compare td{padding:.95rem 1.1rem;text-align:left;font-size:.9375rem;border-bottom:1px solid var(--line);vertical-align:top}
.cmp-box .compare thead th{background:#F2F6FF;color:var(--text);font-weight:600;font-size:.875rem}
.cmp-box .compare thead th:nth-child(2){background:linear-gradient(180deg,#E8F0FF,#F4F8FF);color:var(--accent-deep);font-weight:700;box-shadow:inset 0 2px 0 var(--accent)}
.cmp-box .compare tbody th{font-weight:600;color:var(--ink);background:#FAFCFF;white-space:nowrap}
.cmp-box .compare tbody td:first-of-type{background:#F6FAFF;color:#1D3A8F;font-weight:500}
.cmp-box .compare tbody tr:hover th,.cmp-box .compare tbody tr:hover td{background:#EDF4FF}
.cmp-box .compare tbody td.yes{color:var(--success);font-weight:600}
.cmp-box .compare tr:last-child th,.cmp-box .compare tr:last-child td{border-bottom:none}
.cmp-box .compare tbody tr:last-child td.cmp-summary{text-align:center;color:var(--accent-deep);font-weight:700;letter-spacing:.01em;background:linear-gradient(90deg,#EAF1FF,#F3EEFF)}

.journey{display:grid;gap:1rem}
@media(min-width:780px){.journey{grid-template-columns:repeat(4,1fr)}}
.journey .j{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;transition:border-color .2s,box-shadow .2s}
.journey .j:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.journey .j .num{display:inline-flex;width:36px;height:36px;border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent);font-weight:700;align-items:center;justify-content:center;margin-bottom:.9rem;font-size:.9375rem}
.journey .j h3{font-size:1.0625rem;margin-bottom:.35rem}
.journey .j p{color:var(--muted);font-size:.9375rem;line-height:1.6;margin:0}

.myth{background:#fff;border:1px solid var(--line);border-left:3px solid var(--warn);border-radius:var(--radius-sm);padding:1.1rem 1.2rem}
.myth h3{font-size:1.0625rem;color:var(--warn);margin-bottom:.4rem}
.myth p{color:var(--muted);font-size:.9375rem;margin:0}
.myth p .truth{color:var(--accent-deep);font-weight:600}

.diff{list-style:none;margin:.4rem 0 0;display:grid;gap:.7rem}
.diff li{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:1rem 1.1rem;display:flex;gap:.85rem;align-items:flex-start}
.diff li .badge{flex:none;width:30px;height:30px;border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.875rem}
.diff li h3{font-size:1.0625rem;margin-bottom:.2rem}
.diff li p{color:var(--muted);font-size:.9375rem;margin:0}

.checklist{list-style:none;margin:.4rem 0 0;display:grid;gap:.7rem;counter-reset:c}
.checklist li{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:1rem 1.1rem;display:flex;gap:.85rem;align-items:flex-start}
.checklist li .q{flex:none;width:30px;height:30px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.875rem}
.checklist li h3{font-size:1.0625rem;margin-bottom:.2rem}
.checklist li p{color:var(--muted);font-size:.9375rem;margin:0}

.mini{list-style:none;margin:.6rem 0 0;display:grid;gap:.4rem}
.mini li{position:relative;padding-left:1.15rem;color:var(--muted);font-size:.9375rem}
.mini li::before{content:"›";position:absolute;left:0;color:var(--accent);font-weight:700}

.two-col{display:grid;gap:1rem}
@media(min-width:780px){.two-col{grid-template-columns:1fr 1fr}}

/* ---------- 本页承载关键词标注条（内部审计/演示用，正式上线对访客隐藏） ---------- */
.kw-strip{display:none;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.2rem;margin:0 0 2rem}
.kw-strip .kw-label{font-size:.75rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:.65rem;display:flex;align-items:center;gap:.5rem}
.kw-strip .kw-label::after{content:"";flex:1;height:1px;background:var(--line)}
.kw-tags{display:flex;flex-wrap:wrap;gap:.5rem}
.kw-tag{font-size:.8125rem;color:var(--text);background:var(--accent-soft);border:1px solid #DCE5FF;border-radius:2px;padding:.3rem .7rem;line-height:1.35;white-space:nowrap}
.kw-tag.kw-q{background:var(--page-soft);color:var(--muted);border-color:var(--line)}
.kw-tag .tk{color:var(--accent-deep);font-weight:600}

/* ---------- 待办占位标记（上线前需逐项回填，勿直接上线） ---------- */
.todo-chip{display:inline-block;font-size:.75rem;font-weight:600;letter-spacing:.02em;color:var(--warn);background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:2px;padding:.15rem .6rem;white-space:nowrap}
.tag.tag-pending{color:var(--warn);background:var(--warn-bg)}

/* ---------- 文章详情页（news/ 与 kb/ 子目录共用） ---------- */
.breadcrumb{font-size:.875rem;color:var(--muted);padding:1rem 0 .2rem}
.breadcrumb a{color:var(--accent);text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{margin:0 .45rem;color:var(--faint)}
.breadcrumb .cur{color:var(--text);font-weight:600}
.article{max-width:760px;margin:0 auto;padding:1.2rem 0 2.4rem}
.article-head{margin-bottom:1.4rem}
.article-head h1{font-size:clamp(1.75rem,3.4vw,2.5rem)}
.article-body{font-size:1rem;line-height:1.8;color:var(--text)}
.article-body p{margin-bottom:.9rem}
.article-body p:last-child{margin-bottom:0}
.article-body h2,.article-body h3{color:var(--ink);margin:1.6rem 0 .6rem}
.article-body ul,.article-body ol{margin:.4rem 0 1rem}
.article-body li{margin:.3rem 0}
.back-link{display:inline-flex;align-items:center;gap:.4rem;margin-top:1.6rem;font-weight:600;color:var(--accent);text-decoration:none}
.back-link:hover{text-decoration:underline}
/* 列表页可点击卡片 */
a.insight-card{display:block;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;transition:border-color .2s,box-shadow .2s}
a.insight-card:hover{border-color:var(--accent);box-shadow:var(--shadow);text-decoration:none}
a.insight-card h3{font-size:1.125rem;margin-bottom:.5rem;color:var(--ink)}
a.insight-card .excerpt{color:var(--muted);font-size:.9375rem;margin:.4rem 0 .8rem}
a.insight-card .date{font-size:.8125rem;color:var(--faint)}

/* ---------- 详情页：相关阅读 ---------- */
.related{margin-top:2.2rem;border-top:1px solid var(--line);padding-top:1.4rem}
.related-t{font-size:1.125rem;font-weight:700;color:var(--ink);margin-bottom:.9rem}
.related-list{list-style:none;display:grid;gap:.6rem;margin:0}
.related-list li{margin:0}
.related-list a{display:flex;align-items:center;gap:.5rem;font-weight:500;color:var(--accent);text-decoration:none;padding:.6rem .85rem;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);transition:background-color .2s,border-color .2s}
.related-list a::before{content:"\2192";color:var(--accent);font-weight:700;flex:none}
.related-list a:hover{background:var(--accent-soft);border-color:var(--accent);text-decoration:none}