/* ============================================================
   首页 index.css · 清爽简约版（v1.70.8 视觉重构）
   ------------------------------------------------------------
   设计取向：参考讯飞星火「大留白 + 细边框 + 品牌色点缀」，
   把原先「大面积高饱和渐变块 + 满屏装饰」收敛为
   「白底卡片 + 克制阴影 + 少量品牌色强调」。
   ⚠ 仅调整视觉与布局节奏，不改动任何 PHP / JS / 接口。
   ============================================================ */

/* ---------- Hero ---------- */
.hero{position:relative;padding:calc(var(--nav-h) + 64px) 0 80px;overflow:hidden;
  background:linear-gradient(180deg,#F4F6FF 0%,#FAFBFF 46%,#FFFFFF 100%)}
/* 装饰大幅收敛：只保留一层极淡的品牌柔光，去掉网格纹理与浮动圆斑 */
.hero::before{content:"";position:absolute;width:760px;height:620px;border-radius:50%;
  filter:blur(110px);opacity:.5;pointer-events:none;
  background:radial-gradient(closest-side,rgba(79,93,255,.16),rgba(79,93,255,0));
  top:-260px;left:50%;transform:translateX(-50%)}
.hero::after{content:"";position:absolute;width:520px;height:440px;border-radius:50%;
  filter:blur(100px);opacity:.42;pointer-events:none;
  background:radial-gradient(closest-side,rgba(124,77,255,.14),rgba(124,77,255,0));
  bottom:-240px;right:-100px}
/* 原有 orb / deco 元素保留 DOM，但整体隐藏，避免视觉噪音 */
.hero-orb,.hero-deco{display:none!important}

.hero-inner{position:relative;z-index:2;text-align:center;max-width:820px;margin:0 auto;padding:0 20px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:.83rem;font-weight:600;color:var(--ink-2);box-shadow:var(--shadow-s)}
.hero-badge .pulse{width:7px;height:7px;border-radius:50%;background:var(--ok);animation:pulse 1.6s infinite}
.hero h1{font-size:clamp(2rem,5.4vw,3.25rem);font-weight:900;letter-spacing:-.5px;margin:22px 0 18px;line-height:1.24;
  text-wrap:pretty;-webkit-text-wrap:pretty}
.hero h1 .grad-text{display:inline}
/* 手机端：略收字号 + 保持词组完整换行（不用 balance，避免中文被拆词） */
@media(max-width:640px){.hero h1{font-size:clamp(1.5rem,6.6vw,1.95rem);line-height:1.34;letter-spacing:-.2px;text-wrap:pretty}}
.hero p.sub{font-size:clamp(.95rem,2.2vw,1.08rem);color:var(--ink-2);max-width:620px;margin:0 auto 40px;line-height:1.8}

/* ---------- 大输入框（简化描边、克制阴影） ---------- */
.askbox{max-width:780px;margin:0 auto;text-align:left}
.askbox-main{background:#fff;border-radius:20px;
  border:1px solid var(--line);box-shadow:0 10px 34px -10px rgba(35,46,143,.14);
  padding:18px 18px 12px;transition:var(--dur-mid)}
.askbox-main:focus-within{border-color:rgba(79,93,255,.5);box-shadow:0 16px 44px -12px rgba(79,93,255,.24)}
.askbox textarea{width:100%;border:none;background:transparent;resize:none;font-size:1.02rem;
  line-height:1.65;min-height:66px;max-height:180px;padding:4px 6px}
.askbox textarea::placeholder{color:#A6ACCB}
.askbox-tools{display:flex;align-items:center;gap:8px;padding:10px 4px 2px;flex-wrap:wrap}
.tool-chip{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:.84rem;font-weight:600;color:var(--ink-2);
  transition:var(--dur-mid);cursor:pointer;user-select:none}
.tool-chip svg{width:15px;height:15px}
.tool-chip:hover{border-color:var(--primary);color:var(--primary);background:#F7F8FF}
.tool-chip.on{background:rgba(79,93,255,.08);border-color:rgba(79,93,255,.5);color:var(--primary)}
.icbtn{width:38px;height:38px;flex:none;border-radius:11px;border:none;background:transparent;color:var(--ink-3);
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--dur-fast);position:relative}
.icbtn svg{width:19px;height:19px}
.icbtn:hover{background:#F1F3FF;color:var(--primary)}
.icbtn.on{background:#F1F3FF;color:var(--primary)}
.icbtn.rec-on{background:var(--grad-main);color:#fff;animation:pulse 1.4s infinite}
.attach-pop{position:absolute;z-index:9999;background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:0 18px 50px rgba(30,40,90,.16);display:none;padding:6px;min-width:208px;max-width:calc(100vw - 16px)}
.attach-pop.open{display:block}
.ap-item{display:flex;align-items:center;gap:9px;height:38px;padding:0 10px;border-radius:9px;font-size:13px;
  color:var(--ink-2);cursor:pointer;transition:var(--dur-fast);font-weight:600;white-space:nowrap}
.ap-item svg{width:16px;height:16px;color:var(--ink-3);flex:none;transition:var(--dur-fast)}
.ap-item:hover{background:#F5F7FF;color:var(--primary)}
.ap-item:hover svg{color:var(--primary)}
/* v1.70.15 附件面板拍平：二级子菜单（.ap-submenu）与 × 关闭钮（.ap-close/.ap-x）已删，
   三项直接平铺在主面板，旧子菜单样式一并清理 */
.ask-send{width:42px;height:42px;border-radius:13px;background:var(--grad-main);color:#fff;
  display:flex;align-items:center;justify-content:center;margin-left:auto;box-shadow:var(--glow-s);transition:var(--dur-mid);flex-shrink:0}
.ask-send:hover{transform:translateY(-2px);box-shadow:var(--glow-m)}
.ask-send svg{width:19px;height:19px}
.model-pick{position:relative}
.model-menu{position:fixed;top:0;left:0;background:#fff;border-radius:16px;
  border:1px solid var(--line);box-shadow:var(--shadow-l);min-width:300px;width:max-content;max-width:min(92vw,560px);padding:6px;z-index:50;
  max-height:min(52vh,420px);overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;scrollbar-color:#C3C9E9 transparent;
  opacity:0;transform:translateY(-6px);pointer-events:none;transition:var(--dur-mid)}
.model-menu::-webkit-scrollbar{width:6px}
.model-menu::-webkit-scrollbar-track{background:transparent}
.model-menu::-webkit-scrollbar-thumb{background:#C3C9E9;border-radius:3px}
.model-menu::-webkit-scrollbar-thumb:hover{background:#9AA3D6}
.model-menu.open{opacity:1;transform:none;pointer-events:auto}
.model-menu .mm-head{position:sticky;top:0;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:#fff;padding:9px 12px 8px;margin:-4px -4px 5px;border-bottom:1px solid var(--line);border-radius:13px 13px 0 0}
.model-menu .mm-head b{font-size:.8rem;color:var(--primary);font-weight:800;flex-shrink:0}
/* v1.71.2 「当前：模型名」可能很长（限时免费长标题），nowrap 不收缩会把标题 b 挤成竖排一字一行；
   改为可收缩 + ellipsis，长文案截断显示 */
.model-menu .mm-head span{font-size:.78rem;color:var(--ink-3);white-space:nowrap;min-width:0;overflow:hidden;text-overflow:ellipsis}
.model-menu .mi{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:11px;cursor:pointer;transition:var(--dur-fast)}
.model-menu .mi:hover{background:#F6F7FE}
.model-menu .mi.cur{background:rgba(79,93,255,.07)}
.model-menu .mi .ic{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff}
.model-menu .mi .ic svg{width:17px;height:17px}
.model-menu .mi b{font-size:.9rem;display:block}
.model-menu .mi small{color:var(--ink-3);font-size:.76rem;display:block}
@media(max-width:640px){.model-menu .mi small{font-size:.78rem}}
.model-menu .mi .tag{margin-left:auto;flex-shrink:0}
.model-menu .mi{flex-wrap:wrap}
/* v1.71.2 文本列（图标后的名称/简介 span）占满剩余宽度：价格 tag 才能与首行同排右对齐，
   否则长简介把 tag 挤到下一行，卡片显得松散 */
.model-menu .mi > span:nth-child(2){flex:1}
.model-menu .mi .mp-detail{display:none;flex-basis:100%;margin:6px 0 2px 44px;padding:8px 10px;
  background:#F6F7FE;border-radius:9px;font-size:.72rem;color:var(--ink-2)}
.model-menu .mi:hover .mp-detail,.model-menu .mi.cur .mp-detail{display:flex;flex-direction:column;gap:4px}
.model-menu .mi .mp-detail .mp-row{display:flex;align-items:center;gap:10px}
.model-menu .mi .mp-detail .mp-k{flex-shrink:0;width:64px;font-weight:700;color:var(--ink-3);font-size:.68rem}
.model-menu .mi .mp-detail .mp-v{font-weight:600;color:var(--ink-1)}
.model-menu .mm-group{margin-bottom:2px}
.model-menu .mm-group-hd{display:flex;align-items:center;gap:6px;padding:8px 12px 4px;font-size:.74rem;font-weight:800;color:var(--ink-2);letter-spacing:.02em}
.model-menu .mm-group-n{font-size:.68rem;font-weight:700;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:1px 7px}
.model-menu .mm-group-hint{margin-left:auto;font-size:.64rem;font-weight:500;color:var(--ink-3);opacity:.85;letter-spacing:0}
.model-menu .mm-empty{padding:20px 14px;text-align:center;color:var(--ink-3);font-size:.82rem}
.ask-rec{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:700px;margin:20px auto 0}
.ask-rec button{padding:9px 12px;border-radius:999px;background:#fff;text-align:center;min-width:0;
  border:1px solid var(--line);font-size:.85rem;color:var(--ink-2);transition:var(--dur-mid);font-weight:500}
.ask-rec button:hover{border-color:rgba(79,93,255,.5);color:var(--primary);transform:translateY(-1px);box-shadow:var(--shadow-s)}

/* ---------- 功能引导卡：去掉渐变底与光晕，改纯白细边框 ----------
   HTML 结构：.guide-card > [.g-badge] + .g-ic + <b> + <p>
   （<b>/<p> 是直接子元素，无包裹层）——用 grid 把图标与文字排成两列。 */
.guide-grid{max-width:1180px;margin:40px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;text-align:left}
.guide-card{position:relative;display:grid;grid-template-columns:44px 1fr;grid-template-rows:auto auto;
  column-gap:13px;row-gap:2px;align-items:center;text-decoration:none;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;overflow:hidden;
  box-shadow:none;transition:var(--dur-mid)}
.guide-card::after{display:none}
.guide-card:hover{transform:translateY(-3px);border-color:rgba(79,93,255,.4);box-shadow:0 10px 26px -10px rgba(35,46,143,.18)}
.guide-card .g-ic{grid-row:1/3;display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;flex:none;
  border-radius:13px;background:var(--grad-main);font-size:1.2rem;line-height:1;margin:0;
  box-shadow:none;transition:var(--dur-mid)}
.guide-card:hover .g-ic{transform:scale(1.05)}
.guide-card b{font-size:.9rem;font-weight:700;color:var(--ink);letter-spacing:.1px;align-self:end;
  min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.guide-card p{font-size:.75rem;color:var(--ink-3);line-height:1.5;margin:0;align-self:start;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;min-width:0}
.guide-card .g-badge{position:absolute;right:10px;top:10px;background:rgba(79,93,255,.1);color:var(--primary);
  font-size:.58rem;font-weight:800;letter-spacing:.6px;padding:2px 7px;border-radius:999px;z-index:2}
@media(max-width:1024px){.guide-grid{grid-template-columns:repeat(4,1fr);gap:11px}
  .guide-card{grid-template-columns:38px 1fr;column-gap:10px;padding:13px 14px}
  .guide-card .g-ic{width:38px;height:38px;border-radius:11px;font-size:1.05rem}
  .guide-card b{font-size:.82rem}
  .guide-card p{display:none}
  .guide-card{grid-template-rows:auto}}
@media(max-width:900px){
  .guide-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-top:28px}
}
@media(max-width:640px){
  .guide-grid{grid-template-columns:repeat(2,1fr);gap:9px;margin-top:22px}
  .guide-card{grid-template-columns:34px 1fr;column-gap:9px;padding:11px 12px;border-radius:12px}
  .guide-card .g-ic{width:34px;height:34px;border-radius:10px;font-size:.98rem}
  .guide-card b{font-size:.78rem}
}
@media(max-width:380px){
  .guide-grid{gap:8px}
  .guide-card{padding:10px;grid-template-columns:30px 1fr;column-gap:8px}
  .guide-card .g-ic{width:30px;height:30px;border-radius:9px;font-size:.88rem}
  .guide-card b{font-size:.72rem}
}

/* v1.70.11 首页 Hero 下方「数据带」已下线（与「为什么选择我们」下的信任数据带重复），
   相关 .stats-band / .stat-item 样式一并移除；数字统计统一由 .trust-band / .titem 承担 */

/* ---------- 通用 Section 背景：统一为白/极浅，去掉花哨光斑 ---------- */
/* v1.70.10 .section 纵向节奏定义权归 base.css（全站共享），此处不再重复定义，
   避免与 base.css 的同特异性规则竞争导致移动端紧缩失效 */
/* 交替底色：白/灰严格交替（v1.70.12 按新排序重映射）
   顺序：核心能力(灰) → 应用案例(白) → 关于我们(灰) → 服务超市(白) → 生态产品(灰) → 定价(白) → FAQ(灰) → CTA(白) */
.sec-intro{background:var(--bg)}                /* 关于我们（含品牌模型带 + 信任数据带） */
.sec-soft{background:var(--bg)}                 /* 核心能力 */
.sec-service{background:#fff}                   /* 服务超市 */
.sec-white,.cases-band{background:#fff}         /* 应用案例 */
.sec-eco{background:var(--bg)}                  /* 生态产品 */
.sec-pricing{background:#fff}                   /* 定价 */
.sec-faq{background:var(--bg)}                  /* FAQ */
.sec-cta{background:#fff}                       /* CTA */
/* 装饰层统一关闭 */
@media(min-width:901px){body::before{display:none}}
.sec-intro,.sec-eco,.sec-service,.sec-pricing{position:relative;overflow:hidden}
.sec-intro::before,.sec-eco::before,.sec-eco::after{display:none}
.sec-eco .container,.sec-intro .container{position:relative;z-index:1}

/* ---------- 区块标题节奏（星火式：小标签 + 大标题 + 一行副文案） ---------- */
.sec-head{text-align:center;margin-bottom:48px}
.sec-head h2{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:900;letter-spacing:-.6px;line-height:1.3;margin-bottom:14px}
.sec-head p{font-size:.98rem;color:var(--ink-3);max-width:620px;margin:0 auto;line-height:1.75}
@media(max-width:768px){
  .sec-head{margin-bottom:22px}
  .sec-head h2{font-size:1.4rem;letter-spacing:-.3px}
  .sec-head p{font-size:.86rem}
}

/* ---------- 内容容器：收窄，营造大留白 ---------- */
.container{max-width:min(100%,1240px)}
.hero-inner{max-width:820px}

/* ---------- 能力大卡：从高饱和渐变 → 白底细边框 + 品牌色图标 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cap-grid .cap-card:nth-child(n){background:#fff}
.cap-card{border-radius:18px;overflow:hidden;position:relative;min-height:auto;
  display:flex;flex-direction:column;justify-content:flex-start;color:var(--ink);padding:28px;
  border:1px solid var(--line);box-shadow:none;transition:var(--dur-slow);cursor:pointer}
.cap-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px -16px rgba(35,46,143,.2);border-color:rgba(79,93,255,.35)}
.cap-card .cap-art{position:absolute;inset:0;opacity:0;transition:var(--dur-slow)}
.cap-card:hover .cap-art{opacity:.05}
/* 每卡品牌色描边顶部强调条 */
.cap-card::before{content:"";position:absolute;top:0;left:28px;right:28px;height:3px;
  border-radius:0 0 4px 4px;background:var(--grad-main);opacity:.85}
.cap-card:nth-child(2)::before{background:linear-gradient(90deg,#0EA5E9,#6366F1)}
.cap-card:nth-child(3)::before{background:linear-gradient(90deg,#7C4DFF,#EC4899)}
.cap-card:nth-child(4)::before{background:linear-gradient(90deg,#F43F5E,#7C4DFF)}
.cap-card:nth-child(5)::before{background:linear-gradient(90deg,#0FB37B,#0EA5E9)}
.cap-card:nth-child(6)::before{background:linear-gradient(90deg,#7C4DFF,#2A3EB1)}
.cap-card .cap-body{position:relative;z-index:2;display:flex;flex-direction:column;height:100%}
.cap-card h3{font-size:1.15rem;font-weight:800;margin:16px 0 10px;color:var(--ink);text-shadow:none}
.cap-card p{font-size:.9rem;color:var(--ink-2);line-height:1.8;margin-bottom:18px;text-shadow:none;flex:1}
.cap-card .cap-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:.88rem;
  color:var(--primary);text-shadow:none;width:fit-content}
.cap-card .cap-link svg{transition:transform var(--dur-mid)}
.cap-card:hover .cap-link svg{transform:translateX(4px)}
.cap-art svg{width:100%;height:100%}
/* 卡片头部的分类标签（原为浅色 pill）：重新定为品牌色描边小标签 */
.cap-card .tag{background:rgba(79,93,255,.08)!important;color:var(--primary)!important;
  font-weight:700;font-size:.7rem;padding:3px 10px;border-radius:999px;width:fit-content}
@media(max-width:900px){.cap-grid{grid-template-columns:1fr 1fr;gap:14px}
  .cap-card{padding:20px 18px}}
@media(max-width:640px){.cap-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .cap-card{padding:14px 12px;min-height:auto}
  .cap-card h3{margin:10px 0 7px;font-size:.95rem}
  .cap-card p{font-size:.82rem;line-height:1.65;margin-bottom:10px}}

/* ---------- 能力大卡（6 宫格） ---------- */
.cap-grid-6{grid-template-columns:repeat(3,1fr)}
.cap-grid-6 .cap-card{min-height:auto;padding:26px}
.cap-grid-6 .cap-card::before{left:26px;right:26px}
@media(max-width:900px){.cap-grid-6{grid-template-columns:repeat(2,1fr);gap:14px}.cap-grid-6 .cap-card{padding:20px 18px}}
@media(max-width:640px){.cap-grid-6{grid-template-columns:repeat(2,1fr);gap:10px}
  .cap-grid-6 .cap-card{padding:16px 14px}}
@media(max-width:440px){.cap-grid-6{grid-template-columns:repeat(2,1fr);gap:8px}.cap-grid-6 .cap-card{padding:14px 12px}
  .cap-grid-6 .cap-card h3{font-size:.95rem}.cap-grid-6 .cap-card p{font-size:.8rem;line-height:1.6}}

/* ---------- 产品介绍三卡（我是谁/做什么/最拿手） ---------- */
.intro-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:900px){.intro-grid{grid-template-columns:1fr 1fr;gap:14px}}
@media(max-width:640px){.intro-grid{grid-template-columns:repeat(2,1fr);gap:10px}}
@media(max-width:380px){.intro-grid{gap:8px}}
.intro-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 28px;
  transition:var(--dur-slow);cursor:pointer;position:relative;overflow:hidden;box-shadow:none;
  display:flex;flex-direction:column}
.intro-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px -16px rgba(35,46,143,.2);border-color:rgba(79,93,255,.35)}
.intro-ic{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;color:#fff;margin-bottom:20px;box-shadow:none;background:var(--grad-main)}
.intro-ic svg{width:24px;height:24px}
.intro-card h3{font-size:1.12rem;font-weight:800;margin-bottom:12px}
.intro-card p{font-size:.9rem;color:var(--ink-2);line-height:1.85;margin-bottom:18px;flex:1}
.intro-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:.88rem;color:var(--primary);align-self:flex-start}
@media(max-width:900px){
  .intro-card{padding:22px 20px}
  .intro-ic{width:42px;height:42px;border-radius:12px;font-size:1.2rem;margin-bottom:14px}
  .intro-card h3{font-size:1.02rem;margin-bottom:8px}
  .intro-card p{font-size:.84rem;line-height:1.7;margin-bottom:12px}
}
/* v1.70.11 4 张卡在移动端构成整齐 2×2 四宫格：卡片收紧、正文限 4 行省略，四格等高对齐 */
@media(max-width:640px){
  .intro-card{padding:15px 13px;border-radius:15px}
  .intro-ic{width:36px;height:36px;border-radius:11px;margin-bottom:10px}
  .intro-ic svg{width:19px;height:19px}
  .intro-card h3{font-size:.92rem;margin-bottom:6px}
  .intro-card p{font-size:.77rem;line-height:1.62;margin-bottom:9px;
    display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
  .intro-link{font-size:.78rem;gap:4px}
}

/* ---------- 品牌模型带：白卡细边框，去掉浮起阴影 ---------- */
.brand-strip{margin-top:44px;padding-top:36px;border-top:1px solid var(--line)}
.bs-label{display:block;font-size:.86rem;color:var(--ink-3);font-weight:600;letter-spacing:.3px;margin-bottom:20px;text-align:center}
.bs-logos{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.bs-cell{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;transition:var(--dur-mid);
  display:flex;gap:14px;align-items:flex-start;box-shadow:none}
.bs-cell:hover{border-color:rgba(79,93,255,.35);transform:translateY(-3px);box-shadow:0 12px 30px -14px rgba(35,46,143,.2)}
.bs-ic{width:44px;height:44px;flex:none;border-radius:12px;box-shadow:none}
.bs-ic.brand-logo{width:44px;height:44px;border-radius:12px}
.bs-ic.brand-logo img{padding:12%}
.bs-tx{min-width:0;display:flex;flex-direction:column;min-height:82px}
.bs-cell b{display:block;font-size:.92rem;font-weight:700;margin-bottom:5px;line-height:1.3}
.bs-cell p{font-size:.78rem;color:var(--ink-3);line-height:1.6;margin:0;min-height:2.5em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.bs-tags{margin-top:auto;padding-top:10px;display:flex;flex-wrap:wrap;gap:5px}
.bs-tags span{font-size:.66rem;color:var(--ink-2);background:#F4F6FB;border-radius:5px;padding:2px 8px}
@media(max-width:900px){
  .bs-logos{grid-template-columns:repeat(2,1fr);gap:12px}
  .bs-cell{padding:15px}
  .bs-tx{min-height:0}
  .brand-strip{margin-top:34px;padding-top:28px}
}
@media(max-width:440px){
  .bs-logos{grid-template-columns:1fr 1fr;gap:10px}
  .bs-cell{padding:13px;gap:10px;flex-direction:column}
  .bs-ic{width:36px;height:36px;font-size:.95rem;border-radius:10px}
  .bs-cell b{font-size:.82rem}
  .bs-cell p{font-size:.72rem;-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}
}

/* ---------- 亮点卡（为什么选择我们） ---------- */
.hl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.hl-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 24px;transition:var(--dur-mid)}
.hl-card:hover{border-color:rgba(79,93,255,.35);box-shadow:0 12px 30px -14px rgba(35,46,143,.18);transform:translateY(-3px)}
.hl-card .ic{width:42px;height:42px;border-radius:12px;background:rgba(79,93,255,.08);display:flex;align-items:center;justify-content:center;color:var(--primary);margin-bottom:16px}
.hl-card .ic svg{width:20px;height:20px}
.hl-card h4{font-size:.98rem;font-weight:800;margin:0 0 9px}
.hl-card p{font-size:.86rem;color:var(--ink-3);line-height:1.75;margin:0}
@media(max-width:900px){.hl-grid{grid-template-columns:1fr 1fr;gap:14px}}
@media(max-width:640px){.hl-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .hl-card{padding:14px 12px}
  .hl-card .ic{width:36px;height:36px;border-radius:10px;margin-bottom:11px}
  .hl-card .ic svg{width:18px;height:18px}
  .hl-card h4{font-size:.9rem;margin:0 0 6px}
  .hl-card p{font-size:.79rem;line-height:1.6}}
@media(max-width:380px){.hl-grid{gap:8px}}

/* ---------- 信任数据带：去掉满块渐变，改白卡 + 品牌色数字 ---------- */
.trust-band{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px 28px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;color:var(--ink);box-shadow:none}
.titem{text-align:center;position:relative}
.titem+.titem::before{content:"";position:absolute;left:-7px;top:14%;height:72%;width:1px;background:var(--line)}
.titem b{font-size:clamp(1.7rem,3.6vw,2.2rem);font-weight:900;display:block;line-height:1.1;letter-spacing:-.5px;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.titem span{font-size:.82rem;color:var(--ink-3);display:block;margin-top:7px}
@media(max-width:900px){.trust-band{grid-template-columns:repeat(2,1fr);gap:8px 0;padding:26px 16px}
  .titem:nth-child(3)::before{display:none}
  .titem:nth-child(n+3){margin-top:22px}}
@media(max-width:560px){.trust-band{border-radius:14px;padding:22px 12px;gap:6px 0}
  .titem b{font-size:1.6rem}.titem span{font-size:.76rem}}

/* ---------- 服务超市 ---------- */
.service-band{display:grid;grid-template-columns:1fr 1.1fr;gap:52px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:22px;padding:48px;
  box-shadow:none;position:relative;overflow:hidden}
.service-band::before{display:none}
.service-copy{position:relative;z-index:1}
.service-copy h2{font-size:clamp(1.6rem,3.2vw,2.15rem);line-height:1.32;font-weight:900;letter-spacing:-.8px;margin:14px 0 16px}
.service-copy h2 em{font-style:normal;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.service-copy p{font-size:.94rem;color:var(--ink-2);line-height:1.9;margin:0 0 26px;max-width:520px}
.service-actions{display:flex;gap:12px;flex-wrap:wrap}
/* v1.70.11 「查看全部服务」弱链接已移除（与主按钮重复），样式一并删除 */
.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;position:relative;z-index:1}
.service-item{display:flex;flex-direction:column;gap:6px;padding:22px 20px;border:1px solid var(--line);
  border-radius:14px;text-decoration:none;transition:var(--dur-mid);background:#fff}
.service-item:hover{transform:translateY(-3px);border-color:rgba(79,93,255,.35);box-shadow:0 12px 30px -14px rgba(35,46,143,.18)}
.sv-ic{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;color:#fff;margin-bottom:10px;box-shadow:none}
.sv-ic svg{width:21px;height:21px}
.service-item b{font-size:.95rem;font-weight:800;color:var(--ink)}
.service-item p{font-size:.8rem;color:var(--ink-3);margin:0;line-height:1.55}
@media(max-width:900px){
  .service-band{grid-template-columns:1fr;padding:28px 22px;gap:26px}
  .service-grid{grid-template-columns:repeat(2,1fr);gap:10px}
}
@media(max-width:440px){.service-grid{grid-template-columns:repeat(2,1fr);gap:8px}}

/* v1.70.11 首页「模型矩阵」区块已下线：品牌展示由「关于我们」区块的 logo 卡承担 */


/* ---------- 案例轮播 ---------- */
.case-scroll{display:flex;gap:18px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;scrollbar-width:none}
.case-scroll::-webkit-scrollbar{display:none}
.case-card{flex:0 0 300px;scroll-snap-align:start;background:#fff;border-radius:16px;
  border:1px solid var(--line);padding:24px;transition:var(--dur-mid);cursor:pointer;box-shadow:none}
@media(max-width:480px){.case-card{flex-basis:80vw}}
.case-card:hover{box-shadow:0 14px 34px -14px rgba(35,46,143,.2);transform:translateY(-3px);border-color:rgba(79,93,255,.35)}
.case-logo{width:46px;height:46px;border-radius:13px;color:#fff;font-weight:800;font-size:1rem;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:none}
.case-card h4{font-size:.98rem;font-weight:800;margin-bottom:4px}
.case-card .role{font-size:.76rem;color:var(--primary);font-weight:700;margin-bottom:10px;display:block}
.case-card p{font-size:.84rem;color:var(--ink-2);line-height:1.7}
.cases-dots{display:flex;gap:7px;justify-content:center;margin-top:6px}
.cases-dots i{width:7px;height:7px;border-radius:99px;background:#D3D8EA;transition:var(--dur-slow);cursor:pointer}
.cases-dots i.cur{width:22px;background:var(--primary)}

/* v1.70.11 首页「用户评价」区块已下线（与「应用案例」口碑内容重复） */

/* ---------- 生态 Tabs ---------- */
.eco-tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
/* v1.70.10 移除此处残留的移动端横滑覆盖 —— 与下方「生态 Tabs 换行」块冲突，统一由那块负责 */
.eco-tab{padding:10px 20px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:.9rem;font-weight:600;color:var(--ink-2);transition:var(--dur-mid);white-space:nowrap}
.eco-tab:hover{border-color:rgba(79,93,255,.4);color:var(--primary)}
.eco-tab.cur{background:var(--primary);color:#fff;border-color:transparent;box-shadow:var(--glow-s)}
.eco-panel{display:none;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:22px;padding:40px;animation:ecoIn .4s ease;box-shadow:none}
.eco-panel.show{display:grid}
@media(max-width:820px){.eco-panel{grid-template-columns:1fr;padding:24px;gap:24px}}
@keyframes ecoIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.eco-txt h3{font-size:1.4rem;font-weight:800;margin-bottom:14px;letter-spacing:-.3px}
.eco-txt p{color:var(--ink-2);font-size:.94rem;line-height:1.9;margin-bottom:22px}
.eco-feats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:26px}
@media(max-width:480px){.eco-feats{grid-template-columns:1fr 1fr;gap:8px}}
.eco-feats span{display:flex;gap:7px;align-items:center;font-size:.86rem;color:var(--ink-2)}
.eco-feats svg{width:15px;height:15px;color:var(--ok);flex-shrink:0}
.eco-visual{border-radius:16px;min-height:260px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;background:var(--bg-soft)}
.eco-visual svg{width:88%;height:auto}

/* ---------- 定价 ---------- */
.plan-group{margin-bottom:64px}
.plan-group:last-child{margin-bottom:0}
.plan-group-head{text-align:center;margin-bottom:32px}
.plan-group-head h3{font-size:1.24rem;font-weight:900;letter-spacing:-.4px;margin-bottom:8px;
  display:inline-flex;align-items:center;gap:9px}
.plan-group-head h3::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--grad-main)}
.plan-group.pack .plan-group-head h3::before{background:linear-gradient(135deg,#F59E0B,#F43F5E)}
.plan-group-head p{font-size:.88rem;color:var(--ink-3);margin:0}

.price-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;max-width:920px;margin:0 auto}
.price-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px 26px 26px;
  position:relative;transition:var(--dur-slow);display:flex;flex-direction:column;box-shadow:none}
.price-card.hot{padding-top:34px}
.price-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px -16px rgba(35,46,143,.2);border-color:rgba(79,93,255,.35)}
.price-card.hot{border-color:rgba(79,93,255,.55);box-shadow:0 12px 36px -16px rgba(79,93,255,.3)}
.price-card .hot-tag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--grad-main);color:#fff;font-size:.72rem;font-weight:700;padding:4px 14px;border-radius:999px;white-space:nowrap;letter-spacing:.5px}
.price-card .disc-tag{position:absolute;top:-12px;right:-10px;
  background:linear-gradient(135deg,#FF3D5A,#FF6B35);color:#fff;font-size:.7rem;font-weight:800;
  padding:4px 12px;border-radius:999px;white-space:nowrap;letter-spacing:.5px}
.price-card h4{font-size:1.04rem;font-weight:800}
.plan-disc-countdown{display:inline-flex;align-items:center;gap:4px;margin-top:8px;align-self:flex-start;
  font-size:.72rem;font-weight:700;color:#E11D48;font-variant-numeric:tabular-nums}
.first-charge-banner{margin:-8px auto 24px;max-width:640px;text-align:center;
  background:#FFF9EF;border:1px solid #FFE2B8;color:#AD4E00;
  font-size:.9rem;padding:13px 20px;border-radius:14px;line-height:1.7}
.first-charge-banner b{color:#FF5A00;font-size:1.1rem}
.first-charge-banner svg{width:16px;height:16px;vertical-align:-3px;margin-right:4px}
.price-num{margin:10px 0 0;display:flex;align-items:baseline;flex-wrap:wrap;gap:2px 7px}
.price-num b{font-size:2.1rem;font-weight:900;letter-spacing:-1.2px}
.price-card.hot .price-num b{background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent}
.price-num i{font-style:normal;color:var(--ink-3);font-size:.86rem}
.price-num del{color:#B7BCD4;font-size:.86rem}
.plan-points{display:inline-flex;align-items:center;gap:5px;margin-top:12px;align-self:flex-start;
  background:rgba(79,93,255,.08);color:var(--primary);font-size:.78rem;font-weight:700;
  padding:4px 11px;border-radius:999px}
.plan-points svg{width:12px;height:12px;flex-shrink:0}
.plan-unit{margin-top:8px;font-size:.76rem;color:var(--ink-3);font-weight:600;align-self:flex-start}
.price-feats{margin:18px 0 24px;flex:1}
.price-feats li{display:flex;gap:9px;align-items:flex-start;font-size:.87rem;color:var(--ink-2);margin-bottom:11px;line-height:1.6}
.price-feats svg{width:15px;height:15px;color:var(--ok);flex-shrink:0;margin-top:3px}

/* ---------- 模型单价表 ---------- */
.mp-table-wrap{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:none;max-width:1000px;margin:0 auto}
.mp-table{width:100%;border-collapse:collapse;font-size:.875rem}
.mp-table thead th{background:#FAFBFE;color:var(--ink-2);font-weight:700;font-size:.78rem;
  text-align:left;padding:14px 20px;border-bottom:1px solid var(--line);letter-spacing:.4px;white-space:nowrap}
.mp-table td{padding:16px 20px;border-bottom:1px solid #F3F4FA;vertical-align:top}
.mp-table tbody tr:last-child td{border-bottom:0}
.mp-table tbody tr{transition:background var(--dur-fast)}
.mp-table tbody tr:hover{background:#FCFCFE}
.mp-tar{text-align:right;white-space:nowrap}
.mp-name{display:inline-flex;gap:11px;align-items:flex-start;min-width:0}
.mp-ic{width:32px;height:32px;border-radius:9px;flex-shrink:0;color:#fff;
  display:inline-flex;align-items:center;justify-content:center}
.mp-ic svg{width:17px;height:17px}
.mp-name-txt{display:flex;flex-direction:column;gap:2px;min-width:0}
.mp-name-txt b{font-size:.875rem;font-weight:700;line-height:1.35}
.mp-name-txt small{font-size:.73rem;color:var(--ink-3);white-space:nowrap}
.mp-scene{display:block;color:var(--ink-2);font-size:.8rem;line-height:1.65}
.mp-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:7px}
.mp-tags i{font-style:normal;font-size:.68rem;font-weight:600;color:var(--ink-3);
  background:#F4F6FB;border-radius:6px;padding:2px 8px}
.mp-price{font-weight:800;color:var(--ink-1);font-size:.95rem}
.mp-price small{font-weight:600;color:var(--ink-3);font-size:.72rem;display:block;margin-top:1px}
.mp-free{font-style:normal;font-weight:800;color:var(--ok);font-size:.9rem}
/* v1.83.7 媒体档位标签：同类不同价（视频跨度 14.4×）的解释位 */
.mp-tier{display:inline-block;margin-top:4px;font-size:.66rem;font-weight:700;color:var(--ink-3);
  background:#F4F6FB;border:1px solid #E7EAF3;border-radius:20px;padding:1px 8px;white-space:nowrap}
/* v1.83.8 视频每秒单价：让 5s 与 10s 的视频可直接横向比价 */
.mp-pertime{display:inline-block;margin-top:4px;margin-left:6px;font-size:.66rem;font-weight:700;color:#E8552A;
  background:rgba(240,101,58,.1);border:1px solid rgba(240,101,58,.22);border-radius:20px;padding:1px 8px;white-space:nowrap}
.mp-sub{text-align:center;margin:40px 0 20px}
.mp-sub h4{font-size:1rem;font-weight:800;color:var(--ink-1)}
.mp-sub-note{display:block;font-size:.74rem;font-weight:500;color:var(--ink-3);margin-top:5px}
/* v1.83.7 会员权益量化明细：把「每日送多少 × 多少天」明算成周期总量 */
.plan-perks{display:flex;flex-direction:column;gap:5px;margin:10px 0 4px;padding:10px 12px;
  background:var(--bg-2,#F7F8FC);border:1px solid var(--line,#EDEFF7);border-radius:10px}
.plan-perks .perk{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-size:.76rem}
.plan-perks .perk i{font-style:normal;color:var(--ink-3);flex:none}
.plan-perks .perk b{font-weight:700;color:var(--ink-1);text-align:right}
.plan-perks .perk em{font-style:normal;color:var(--primary,#3D5AFE)}

@media(max-width:640px){
  .plan-group{margin-bottom:28px}
  .plan-group-head{margin-bottom:20px}
  .plan-group-head h3{font-size:1.02rem;gap:7px}
  .plan-group-head p{font-size:.76rem}
  .price-grid{
    display:flex!important;flex-wrap:nowrap!important;
    overflow-x:auto!important;overflow-y:visible!important;
    gap:10px!important;
    padding:16px 14px 12px!important;
    margin:0 -14px!important;
    scroll-snap-type:x mandatory;scroll-padding-left:14px;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
    max-width:none!important;
  }
  .price-grid::-webkit-scrollbar{display:none}
  .price-card{flex:0 0 78%!important;max-width:280px;min-width:0;scroll-snap-align:start}
  .price-card h4{white-space:normal;overflow:visible}
  .price-feats li{white-space:normal;word-break:break-word}
  .plan-group .price-grid{scroll-snap-type:x proximity}
  .price-card{padding:18px 14px 15px;border-radius:15px}
  .price-card.hot{padding-top:26px}
  .price-card .hot-tag{font-size:.62rem;padding:3px 10px;top:-9px}
  .price-card h4{font-size:.86rem}
  .price-num{margin:6px 0 0}
  .price-num b{font-size:1.4rem;letter-spacing:-.5px}
  .price-num i,.price-num del{font-size:.7rem}
  .plan-points{font-size:.66rem;padding:3px 8px;margin-top:8px;gap:4px}
  .plan-points svg{width:10px;height:10px}
  .plan-unit{font-size:.66rem;margin-top:6px}
  .price-feats{margin:11px 0 15px}
  .price-feats li{font-size:.74rem;margin-bottom:6px;gap:5px;line-height:1.5}
  .price-feats svg{width:12px;height:12px;margin-top:2px}
  .price-card .btn{width:100%;padding:9px 0;font-size:.82rem;border-radius:10px}

  .mp-table-wrap{border:0;background:transparent}
  .mp-table,.mp-table tbody,.mp-table tr,.mp-table td{display:block;width:100%}
  .mp-table thead{display:none}
  .mp-table tr{background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:15px;margin-bottom:11px}
  .mp-table td{border:0;padding:0}
  .mp-table td.mp-tar{text-align:left;margin-top:11px;padding-top:11px;border-top:1px dashed #EDEFF7;
    display:flex;align-items:baseline;justify-content:space-between}
  .mp-table td:nth-child(2){margin-top:10px}
  .mp-scene{font-size:.78rem}
  .mp-name-txt b{font-size:.84rem}
  .mp-name-txt small{font-size:.68rem}
  .mp-ic{width:28px;height:28px;border-radius:8px}
  .mp-ic svg{width:15px;height:15px}
  .mp-price small{display:inline;margin-left:3px}
  .mp-sub{margin:26px 0 14px}
  .mp-sub h4{font-size:.9rem}
}

/* 极窄屏（320-380px）价格卡再收一档，保证一屏仍能看到 1.2 张 */
@media(max-width:380px){
  .price-grid{gap:8px!important;padding:15px 12px 10px!important;margin:0 -12px!important;scroll-padding-left:12px}
  .price-card{flex:0 0 84%!important;max-width:266px}
}

/* ---------- FAQ ---------- */
/* v1.70.12 FAQ 背景改为浅灰（与生态产品/核心能力交替），统一由顶部 .sec-faq{background:var(--bg)} 管理 */
.faq-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.faq-head span{font-size:.84rem;color:var(--ink-3)}
.faq-head .toggle-all{border:1px solid var(--line);background:#fff;color:var(--ink-2);border-radius:9px;
  padding:8px 16px;font-size:.82rem;font-weight:600;cursor:pointer;transition:var(--dur-fast)}
.faq-head .toggle-all:hover{border-color:var(--primary);color:var(--primary);background:#F6F8FF}
.faq{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:var(--dur-fast)}
.faq-item.open{border-color:rgba(79,93,255,.4)}
.faq-item .faq-q{padding:16px 20px;font-size:.9rem;font-weight:700;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:10px;user-select:none}
.faq-item .faq-q .faq-x{font-size:20px;color:var(--ink-3);transition:var(--dur-mid);flex:none;line-height:1;font-weight:400}
.faq-item.open .faq-q .faq-x{transform:rotate(45deg);color:var(--primary)}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height var(--dur-slow) var(--ease)}
.faq-item .faq-a p{padding:0 20px 18px;font-size:.84rem;color:var(--ink-3);line-height:1.8}
@media(max-width:640px){
  /* v1.70.10 用户确认 FAQ 也走双列；桌面已有 align-items:start 优雅处理展开错位，此处不再降为单列 */
  .faq{grid-template-columns:1fr 1fr;gap:10px}
  .faq-item .faq-q{padding:12px 14px;font-size:.82rem}
  .faq-item .faq-a p{padding:0 14px 14px;font-size:.79rem;line-height:1.7}
  .faq-head span{display:none}
  .faq-head{justify-content:flex-end}
}

/* ---------- CTA ---------- */
.sec-cta{padding-top:44px;padding-bottom:54px;background:#fff}
@media(max-width:768px){.sec-cta{padding-top:24px;padding-bottom:34px}}
@media(max-width:640px){.sec-cta{padding-top:22px;padding-bottom:30px}}
.cta-band{
  border-radius:24px;background:linear-gradient(120deg,#2A3EB1,#5A45F0 55%,#8E5CFF);
  color:#fff;padding:64px 32px;text-align:center;position:relative;overflow:hidden;
  box-shadow:0 26px 60px -26px rgba(60,70,190,.45);
}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:rgba(255,255,255,.1);top:-220px;right:-100px;filter:blur(10px)}
.cta-band::after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.07);bottom:-190px;left:-80px;filter:blur(14px);pointer-events:none}
.cta-band h2{font-size:clamp(1.5rem,4vw,2.15rem);font-weight:900;margin-bottom:14px;position:relative;letter-spacing:-.6px}
.cta-band p{opacity:.9;margin-bottom:30px;position:relative}
.cta-band .btn{position:relative}

/* ---------- 移动端整页紧凑化 ---------- */
@media(max-width:640px){
  .hero{padding:calc(var(--nav-h) + 34px) 0 46px}
  .hero h1{margin:18px 0 12px}
  .hero p.sub{margin-bottom:28px;max-width:330px;margin-left:auto;margin-right:auto;
    text-wrap:balance;-webkit-text-wrap:balance;font-size:.92rem;line-height:1.7}
  .askbox-main{border-radius:16px;padding:14px 14px 10px}
  .ask-rec{margin-top:14px;gap:8px;max-width:100%;grid-template-columns:repeat(2,1fr)}
  .ask-rec button{padding:8px 9px;font-size:.76rem}
  .askbox-tools{flex-wrap:nowrap;gap:4px;padding:8px 2px 0}
  .tool-chip{padding:6px 8px;font-size:.74rem;gap:4px;flex-shrink:0}
  .tool-chip svg{width:13px;height:13px}
  .t-long{display:none}
  .t-short{display:inline}
  #modelName{display:inline-block;max-width:5em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom}
  .model-pick{flex-shrink:0}
  /* v1.71.2 去掉固定 height（历史 height:min(36vh,280px) 把面板压扁，模型一多列表被截得只剩一条、
     视觉上像被遮挡）；改为不设固定高度，由下方 640px 断点的 max-height:min(58vh,440px) 统一收口 */
  .model-menu{top:auto;left:12px;right:12px;bottom:12px;min-width:0;max-width:none;width:auto;height:auto;max-height:none;padding:4px;border-radius:16px;box-shadow:0 -10px 40px rgba(30,40,90,.16)}
  .model-menu .mm-head{padding:5px 10px 4px;margin:-2px -2px 4px;border-radius:12px 12px 0 0}
  .model-menu .mm-head b{font-size:.74rem}
  .model-menu .mm-head span{font-size:.68rem}
  .model-menu .mi{padding:6px 9px;gap:8px;border-radius:9px}
  .model-menu .mi .ic{width:26px;height:26px;border-radius:7px}
  .model-menu .mi .ic svg{width:14px;height:14px}
  .model-menu .mi b{font-size:.8rem}
  .model-menu .mi small{font-size:.66rem}
  .model-menu .mi .tag{padding:2px 7px;font-size:.64rem}
  .model-menu .mi .mp-detail{margin-left:0;margin-top:6px;font-size:.68rem}
  .ask-send{width:38px;height:38px;border-radius:12px;margin-left:auto}
  .eco-panel{padding:18px;border-radius:16px;gap:20px}
  .eco-txt h3{font-size:1.15rem;margin-bottom:9px}
  .eco-txt p{font-size:.84rem;line-height:1.7;margin-bottom:14px}
  .eco-feats{gap:8px;margin-bottom:16px}
  .eco-feats span{font-size:.78rem}
  .eco-visual{min-height:180px}
  .cta-band{padding:34px 20px;border-radius:18px}
  .cta-band h2{font-size:1.28rem}
  .cta-band .btn{display:block;width:100%;margin:8px 0 0!important}
}
@media(max-width:480px){.eco-feats{grid-template-columns:1fr 1fr}}
@media(max-width:380px){
  .askbox-tools{gap:3px}
  #btnDeep svg{display:none}
  #btnDeep{padding:6px 9px}
  #modelName{max-width:3.5em}
}

/* 公告条显示时压缩 hero 顶部重复预留 */
html.announce-on .hero{padding-top:52px}
@media(max-width:640px){html.announce-on .hero{padding-top:36px}}

/* ============================================================
   v1.70.8 间距规范统一 + 移动端横向滑动（第二轮美化）
   ------------------------------------------------------------
   1) 间距收敛到 4px 基准：11/13/15/17px 等碎片值统一就近对齐，
      消除「左右 18px、上下 13px」这类不成体系的参差。
   2) 卡片网格在窄屏改为「单行横向滑动 + 吸附」，符合触屏浏览习惯，
      替代此前「挤成 2 列 / 文字被压扁」的布局。
   ============================================================ */

/* ---------- 1. 卡片内边距统一（4px 基准） ---------- */
.guide-card{padding:16px 18px}
.bs-cell{padding:20px}
.intro-card{padding:28px}
.cap-card{padding:26px}
.hl-card{padding:24px}
.service-item{padding:20px}
.case-card{padding:22px}
.price-card{padding:26px 24px 24px}
.faq-item .faq-q{padding:16px 20px}
.faq-item .faq-a p{padding:0 20px 16px}
.mp-table thead th{padding:14px 20px}
.mp-table td{padding:16px 20px}
.eco-panel{padding:36px}
.service-band{padding:44px}

/* ---------- 2. 区块纵向节奏统一：交由 base.css 的 .section 三档统一管理 ---------- */
/* v1.70.10 移除此处 .section{padding:88px 0}（元凶：压掉 base.css @media(768/640/380) 全部档位） */
.brand-strip{margin-top:48px;padding-top:40px}
.sec-head{margin-bottom:44px}
.trust-band{padding:32px 28px}
.brand-strip .bs-label{margin-bottom:20px}

/* v1.70.10 移动端留白收敛：区块头/尾 40-64px → 16-24px */
@media(max-width:640px){
  .brand-strip{margin-top:24px;padding-top:20px}
  .sec-head{margin-bottom:20px}
  .trust-band{padding:22px 18px}
  .brand-strip .bs-label{margin-bottom:14px}
}

/* ---------- 3. 窄屏统一为「双排网格」：取消横向滑动，回归规整宫格 ----------
   改版说明：此前移动端把功能引导卡 / 品牌模型带做成横向滑动轨道，
   实际体验偏"碎"——露半张卡、滑动手势与页面纵向滚动打架，观感不整。
   现改为固定双列网格：左右对齐、上下等分，配合 1 行标题 + 2 行描述，
   既保留信息密度又有清晰的视觉秩序。 */

@media(max-width:640px){
  /* 功能引导卡：双列网格，纵向双排 */
  .guide-grid{
    display:grid!important;
    grid-template-columns:repeat(2,1fr);
    gap:10px;
    margin:22px auto 0;
  }
  .guide-grid::-webkit-scrollbar{display:none}
  .guide-card{
    display:grid;
    grid-template-columns:34px 1fr;
    grid-template-rows:auto auto;
    column-gap:9px;row-gap:3px;
    align-items:start;
    padding:13px 12px;
    border-radius:13px;
    flex:none;
  }
  .guide-card .g-ic{
    grid-row:1/3;align-self:center;
    width:34px;height:34px;border-radius:10px;font-size:.98rem;
  }
  .guide-card b{
    font-size:.78rem;line-height:1.35;align-self:end;
    white-space:normal;overflow:visible;text-overflow:clip;
  }
  /* 描述文字恢复两行，补回信息量 */
  .guide-card p{
    display:-webkit-box!important;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    font-size:.69rem;line-height:1.45;color:var(--ink-3);
  }
  .guide-card .g-badge{right:8px;top:8px;font-size:.54rem;padding:1px 6px}

  /* 品牌模型带：双列网格，卡片纵向排布（图标在上、文案在下） */
  .bs-logos{
    display:grid!important;
    grid-template-columns:repeat(2,1fr);
    gap:10px;
  }
  .bs-logos::-webkit-scrollbar{display:none}
  .bs-cell{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:9px;
    padding:14px 13px;
    border-radius:14px;
    flex:none;
    height:100%;
  }
  .bs-ic,.bs-ic.brand-logo{width:36px;height:36px;border-radius:10px}
  .bs-tx{min-height:0;width:100%}
  .bs-cell b{font-size:.82rem;margin-bottom:4px;line-height:1.3}
  .bs-cell p{
    font-size:.71rem;line-height:1.5;
    -webkit-line-clamp:2;display:-webkit-box;
    -webkit-box-orient:vertical;overflow:hidden;
    min-height:0;
  }
  .bs-tags{margin-top:auto;padding-top:8px;gap:4px}
  .bs-tags span{font-size:.62rem;padding:2px 6px}
}

/* 超小屏：进一步压缩留白，仍保持双列 */
@media(max-width:380px){
  .guide-grid{gap:8px}
  .guide-card{padding:11px 10px;grid-template-columns:30px 1fr;column-gap:8px;border-radius:12px}
  .guide-card .g-ic{width:30px;height:30px;border-radius:9px;font-size:.9rem}
  .guide-card b{font-size:.73rem}
  .guide-card p{font-size:.65rem}
  .bs-logos{gap:8px}
  .bs-cell{padding:12px 11px;border-radius:13px}
  .bs-ic,.bs-ic.brand-logo{width:32px;height:32px;border-radius:9px}
  .bs-cell b{font-size:.78rem}
  .bs-cell p{font-size:.67rem}
}

/* ---------- 4. 生态 Tabs：窄屏改为两行换行，不做横滑 ---------- */
@media(max-width:640px){
  .eco-tabs{
    flex-wrap:wrap!important;
    justify-content:flex-start!important;
    gap:7px;
    overflow:visible!important;
    padding-bottom:0;
  }
  .eco-tab{padding:8px 15px;font-size:.82rem;flex:0 0 auto}
}

/* ---------- 5. 案例轮播：窄屏保留横滑，但卡片收紧 + 露出下一张边缘（滑动提示） ---------- */
.case-scroll{gap:16px;padding:4px 4px 20px}
.case-card{flex:0 0 300px}
@media(max-width:640px){
  .case-scroll{
    display:flex!important;
    flex-wrap:nowrap!important;
    gap:10px!important;
    /* 出血到屏幕边：首尾卡仍内缩，滑动区贴边（iOS 轮播标准做法） */
    padding:6px 14px 12px!important;
    margin:0 -14px!important;
    overflow-x:auto!important;
    overflow-y:visible!important;
    scroll-snap-type:x proximity;
    scroll-padding-left:14px;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .case-scroll::-webkit-scrollbar{display:none}
  /* 一屏看到约 1.25 张：卡片明显收紧，右侧露边提示可滑 */
  .case-card{flex:0 0 63vw!important;max-width:250px;min-width:0;scroll-snap-align:start;padding:16px 14px!important;border-radius:14px}
  .case-logo{width:38px;height:38px;border-radius:11px;font-size:.9rem}
  .case-card h4{font-size:.88rem;margin-bottom:3px}
  .case-card .role{font-size:.7rem;margin-bottom:7px}
  .case-card p{font-size:.77rem;line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .cases-dots{margin-top:2px}
}
@media(max-width:380px){
  .case-scroll{gap:8px!important;padding:6px 12px 10px!important;margin:0 -12px!important;scroll-padding-left:12px}
  .case-card{flex:0 0 68vw!important;max-width:238px;padding:14px 12px!important}
}

/* ---------- 6. 网格 gap 统一（桌面 20px / 平板 16px / 手机 12px） ---------- */
.cap-grid,.cap-grid-6,.intro-grid,.hl-grid,.eco-feats,.price-grid{column-gap:20px;row-gap:20px}
@media(max-width:900px){.cap-grid,.cap-grid-6,.intro-grid,.hl-grid,.eco-feats{column-gap:16px;row-gap:16px}}
@media(max-width:640px){.cap-grid,.cap-grid-6,.intro-grid,.hl-grid,.eco-feats{column-gap:12px;row-gap:12px}}
@media(max-width:640px){.price-grid{column-gap:12px;row-gap:12px}}

/* ============================================================
   v1.70.8 输入框专项美化（首页 askbox）
   ------------------------------------------------------------
   问题：①输入区与工具行留白过大、卡片偏高；
        ②模型 chip 图标是无意义的机器人占位符；
        ③+ / 麦克风 按钮尺寸与颜色和右侧发送钮不成体系。
   改法：收紧纵向节奏、chip 接入真实模型 Logo、工具钮统一 38px 圆形，
        并给聚焦态更克制的品牌描边。
   ============================================================ */

/* 1. 输入卡片：收紧内边距，降低整体高度 */
.askbox-main{padding:16px 16px 10px;border-radius:18px}
.askbox textarea{min-height:58px;max-height:170px;padding:2px 4px;font-size:1.02rem}

/* 2. 工具行：上间距从 10px 收到 6px，整体更紧凑 */
.askbox-tools{padding:6px 2px 2px;gap:6px}

/* 3. 模型 chip：图标位接入真实品牌 Logo，尺寸与文字基线对齐 */
.tool-chip{gap:7px;padding:7px 12px 7px 9px}
.tool-chip .chip-logo{display:inline-flex;align-items:center;justify-content:center;
  width:20px;height:20px;flex:none;color:var(--primary)}
.tool-chip .chip-logo svg{width:16px;height:16px}
.tool-chip .chip-logo .brand-logo{width:20px!important;height:20px!important;flex:0 0 20px!important;
  border-radius:6px!important;border:0;background:transparent!important}
.tool-chip .chip-logo .brand-logo img{padding:0}

/* 4. 工具图标钮：统一 38px 圆角方，hover 底色更明确 */
.icbtn{width:38px;height:38px;border-radius:11px;color:var(--ink-2)}
.icbtn svg{width:18px;height:18px}
.icbtn:hover{background:rgba(79,93,255,.08);color:var(--primary)}

/* 5. 发送钮与之对齐 */
.ask-send{width:38px;height:38px;border-radius:11px}
.ask-send svg{width:18px;height:18px}

/* 6. 聚焦态：品牌描边更克制，去掉厚重投影 */
.askbox-main:focus-within{border-color:rgba(79,93,255,.55);box-shadow:0 8px 30px -12px rgba(79,93,255,.22)}

/* 7. 手机端：更紧凑，图标钮 36px */
@media(max-width:640px){
  .askbox-main{padding:13px 13px 8px;border-radius:16px}
  .askbox textarea{min-height:52px;font-size:.96rem;padding:2px 3px}
  .askbox-tools{padding:5px 1px 1px;gap:5px}
  .icbtn{width:36px;height:36px;border-radius:10px}
  .icbtn svg{width:17px;height:17px}
  .ask-send{width:36px;height:36px;border-radius:10px}
  .tool-chip{padding:6px 10px 6px 8px;gap:6px}
  .tool-chip .chip-logo{width:18px;height:18px}
  .tool-chip .chip-logo .brand-logo{width:18px!important;height:18px!important;flex:0 0 18px!important}
}

/* ============ v1.70.12 首页纵向节奏拉紧（无缝衔接） ============
   仅作用于首页（body.page-home），桌面/移动端都收紧 section 上下间距，
   配合白灰严格交替，消除区块间的大段空白断层。 */
body.page-home .section{padding-top:40px;padding-bottom:40px}
body.page-home .sec-cta{padding-top:32px;padding-bottom:44px}
@media(max-width:768px){
  body.page-home .section{padding-top:28px;padding-bottom:28px}
  body.page-home .sec-cta{padding-top:24px;padding-bottom:30px}
}
@media(max-width:640px){
  body.page-home .section{padding-top:22px;padding-bottom:22px}
  body.page-home .sec-cta{padding-top:20px;padding-bottom:26px}
}
@media(max-width:380px){
  body.page-home .section{padding-top:18px;padding-bottom:18px}
}
/* 区块标题与内容之间也拉紧：标题下边距 48→28（桌面）/20（移动） */
body.page-home .sec-head{margin-bottom:28px}
@media(max-width:640px){body.page-home .sec-head{margin-bottom:18px}}

/* ============ v1.70.13 移动端细节美化 ============ */

/* 1. 猜你想问：缩小并改为一排横向滑动（原两列网格占屏太高） */
@media(max-width:640px){
  .ask-rec{
    display:flex!important;flex-wrap:nowrap!important;
    overflow-x:auto!important;overflow-y:hidden!important;
    gap:7px!important;
    margin:12px -14px 0!important;
    padding:2px 14px 6px!important;
    max-width:none!important;
    scrollbar-width:none;-webkit-overflow-scrolling:touch;
    scroll-snap-type:x proximity;scroll-padding-left:14px;
  }
  .ask-rec::-webkit-scrollbar{display:none}
  .ask-rec button{
    flex:0 0 auto;max-width:150px;min-width:0;
    padding:6px 13px;font-size:.72rem;border-radius:999px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
    text-align:center;scroll-snap-align:start;
  }
}
@media(max-width:380px){
  .ask-rec{gap:6px!important;margin:10px -12px 0!important;padding:2px 12px 5px!important;scroll-padding-left:12px}
  .ask-rec button{padding:5px 11px;font-size:.7rem;max-width:132px}
}

/* 2. AI 服务超市：移动端排版收紧（原区块高 1133px，拉得太长） */
@media(max-width:640px){
  .service-band{padding:18px 14px;gap:16px;border-radius:18px}
  .service-band .kicker{font-size:.7rem;padding:5px 11px;margin-bottom:0}
  .service-copy h2{font-size:1.22rem;letter-spacing:-.4px;margin:10px 0 8px;line-height:1.35}
  .service-copy p{
    font-size:.8rem;line-height:1.68;margin:0 0 14px;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .service-actions{flex-wrap:nowrap;gap:8px}
  .service-actions .btn{
    flex:1 1 50%;min-width:0;justify-content:center;text-align:center;
    padding:11px 6px;font-size:.84rem;min-height:42px;border-radius:12px;
  }
  .service-grid{gap:8px;margin-top:2px}
  .service-item{padding:13px 11px;gap:3px;border-radius:13px}
  .sv-ic{width:34px;height:34px;border-radius:10px;margin-bottom:6px}
  .sv-ic svg{width:17px;height:17px}
  .service-item b{font-size:.85rem;line-height:1.35}
  .service-item p{font-size:.71rem;line-height:1.5;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
}
@media(max-width:380px){
  .service-band{padding:16px 12px}
  .service-actions .btn{font-size:.78rem;padding:10px 4px}
}

/* 3. 模型下拉菜单：展开项收紧（原每项两行 + 大内边距，整体过长） */
@media(max-width:640px){
  .model-menu{padding:5px;border-radius:14px;max-height:min(58vh,440px)}
  .model-menu .mm-head{padding:8px 10px 7px;margin:-3px -3px 4px}
  .model-menu .mm-head b{font-size:.76rem}
  .model-menu .mm-head span{font-size:.72rem}
  .model-menu .mi{padding:6px 8px;gap:8px;border-radius:9px}
  .model-menu .mi .ic{width:28px;height:28px;border-radius:8px}
  .model-menu .mi .ic svg{width:15px;height:15px}
  .model-menu .mi b{font-size:.8rem}
  .model-menu .mi small{font-size:.68rem;line-height:1.35;margin-top:1px}
  .model-menu .mi .tag{font-size:.62rem;padding:2px 7px}
  .model-menu .mi .mp-detail{margin:5px 0 2px 36px;padding:7px 8px}
}

/* 4. 附件菜单（v1.70.15 拍平后仅三项平铺）：移动端展开项收紧 */
@media(max-width:640px){
  .attach-pop{padding:4px;border-radius:12px;min-width:176px}
  .ap-item{height:34px;padding:0 8px;gap:7px;border-radius:8px;font-size:12.5px}
  .ap-item svg{width:15px;height:15px}
}

/* ============================================================
   v1.84.0 渐进式入场 · 同组卡片错峰显现（纯 CSS、可回滚、不影响交互）
   ------------------------------------------------------------
   --rd（reveal-delay）只在 base.css 的 .js .reveal.in 过渡里被引用，
   故延迟仅作用于「滚动入场」动画本身，绝不波及 hover/其他过渡。
   无 JS 时 .reveal 强制终态可见（base.css 兜底），本规则整组不生效。
   ============================================================ */
.js .cap-grid .cap-card:nth-child(2),
.js .intro-grid .intro-card:nth-child(2){--rd:70ms}
.js .cap-grid .cap-card:nth-child(3),
.js .intro-grid .intro-card:nth-child(3){--rd:140ms}
.js .cap-grid .cap-card:nth-child(4),
.js .intro-grid .intro-card:nth-child(4){--rd:210ms}
.js .cap-grid .cap-card:nth-child(n+5),
.js .intro-grid .intro-card:nth-child(n+5){--rd:280ms}