/* ============================================================
   盒智创新 INNOPACKING · 全站统一样式
   配色：纸张暖白 + 墨绿 + 品牌绿 + 铜棕点缀
   只保留一套变量，全站组件统一从这里取色
   ============================================================ */

:root{
  --bg:#faf8f2;          /* 页面底色 · 纸白 */
  --surface:#ffffff;     /* 卡片底色 · 白 */
  --tint:#f2f5ea;        /* 浅绿区块 */
  --tint-strong:#e9f0dc; /* 深一点的浅绿（结尾行动区） */
  --ink:#22312a;         /* 标题 · 墨绿 */
  --muted:#5c665e;       /* 正文 · 灰绿 */
  --brand:#2e5b41;       /* 品牌绿 · 主按钮/链接强调 */
  --brand-hover:#3a6f52;
  --brand-bright:#86b835;/* logo 鲜绿 · 小面积点缀 */
  --green-text:#3f6f3a;   /* 全站绿色强调字 · 唯一取值 */
  --accent:#a08050;      /* 铜棕 · eyebrow/序号 */
  --sand:#f4efe3;        /* 序号徽章底色 */
  --line:#e6e0d2;        /* 暖灰边框 */
  --max:1440px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}
button{cursor:pointer;border:0}
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--brand-bright);outline-offset:4px}
img{max-width:100%;display:block}
p{color:var(--muted);margin:0 0 20px}
h1,h2,h3,h4{font-weight:600;line-height:1.4;margin:0}
/* 中文标题不做负字距；全角逗号本身含右侧空白，收一点视觉间隙 */
h1{font-size:clamp(38px,4.6vw,60px);line-height:1.35;letter-spacing:0;word-break:break-word;overflow-wrap:anywhere;text-wrap:balance}
h1 .cm{letter-spacing:-.28em;margin-right:.14em}
h2{font-size:clamp(28px,3vw,40px);line-height:1.45;letter-spacing:0;word-break:break-word}
h3{font-size:22px;letter-spacing:-.01em}
h4{font-size:20px;letter-spacing:-.01em}
::selection{background:#dce8c0}
[hidden]{display:none!important}
.skip{position:absolute;top:-100px;left:20px;z-index:100;background:var(--surface);padding:12px}
.skip:focus{top:0}
.meta{font-size:13px;color:var(--muted)}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.13em;display:block;line-height:1.6;color:var(--accent)}
.text-link{display:inline-block;border-bottom:1px solid currentColor;padding-bottom:5px;font-size:14px;color:var(--green-text)}
.nav a:hover,.text-link:hover,.read:hover{color:var(--green-text)}

/* ---------- 按钮 ---------- */
.button{padding:15px 24px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:20px;font-size:14px;min-height:48px;transition:background .2s,border-color .2s}
.button.dark,.dark{background:var(--brand);color:#fff}
.button.dark:hover,.dark:hover{background:var(--brand-hover);color:#fff}
.light-button{background:var(--surface);border:1px solid var(--line);color:var(--ink)}
.light-button:hover{background:#f0f3e8}

/* ---------- 导航 ---------- */
.nav{height:88px;display:flex;align-items:center;justify-content:space-between;padding:0 5%;border-bottom:1px solid #ffffff1a;background:#12211a;position:sticky;top:0;z-index:20;gap:28px;backdrop-filter:blur(18px)}
.brand{width:180px;flex-shrink:0}
.brand img{width:100%;height:auto}
.nav nav{display:flex;gap:28px;font-size:14px;color:#cfdac9}
.nav-contact{font-size:14px;border-bottom:1px solid #ffffff59;padding:6px 0;color:#eef2e8}
.nav-contact span{margin-left:18px}
.nav a{color:#cfdac9}
.nav a:hover{color:#a9cf6a}
@media(min-width:1700px){.nav{padding-left:calc((100% - 1530px)/2);padding-right:calc((100% - 1530px)/2)}}

/* ---------- 首页 Hero · 深色卡座 ---------- */
.home-cards .hero,.home-cards .section{max-width:var(--max);padding-left:clamp(24px,5vw,88px);padding-right:clamp(24px,5vw,88px)}
/* 深色卡座：满宽深色底 + 内部左右卡片 */
.home-cards .hero.single-banner{
  max-width:none;
  display:grid;grid-template-columns:1.42fr .86fr;gap:clamp(24px,3.2vw,52px);align-items:center;
  margin:0;padding:clamp(56px,7vw,96px) clamp(24px,5vw,88px);
  background:
    radial-gradient(circle at 80% 16%, rgba(134,184,53,.16), transparent 34%),
    radial-gradient(circle at 14% 88%, rgba(160,128,80,.14), transparent 32%),
    linear-gradient(180deg,#101f19 0%,#16281f 62%,#132219 100%);
  color:#eef2e8;position:relative;overflow:hidden;
}
.home-cards .hero.single-banner:before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
}
.single-banner-copy{min-width:0;position:relative;z-index:1}
.home-cards .hero.single-banner .eyebrow{color:#a9cf6a}
.home-cards .hero.single-banner h1{margin:20px 0 22px;color:#f4f7ef}
.home-cards .hero.single-banner p{font-size:15px;line-height:2;color:#b6c4b4;white-space:pre-line}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.home-cards .hero.single-banner .dark{background:var(--brand-bright);color:#12210f}
.home-cards .hero.single-banner .dark:hover{background:#9bcd42;color:#12210f}
.home-cards .hero.single-banner .light-button{background:#ffffff14;border-color:#ffffff2e;color:#eef2e8}
.home-cards .hero.single-banner .light-button:hover{background:#ffffff26}
.hero-proof{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:38px;border-top:1px solid #ffffff1f;padding-top:23px}
.hero-proof span{display:block;font-size:10px;letter-spacing:.1em;color:#a9cf6a}
.hero-proof b{display:block;font-size:12px;font-weight:500;color:#dfe7d8;margin-top:9px;line-height:1.8}
/* 右侧包装概念图卡片（占比更小） */
.single-banner-image{
  margin:0;border-radius:18px;overflow:hidden;border:1px solid #ffffff26;background:#1b2c23;
  position:relative;align-self:stretch;min-height:430px;
  box-shadow:0 30px 70px #00000045;
}
.single-banner-image img{width:100%;height:100%;object-fit:cover}
.single-banner-image figcaption{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;gap:15px;padding:35px 22px 20px;background:linear-gradient(transparent,#07110fcc);color:#eef0e4;font-size:10px;letter-spacing:.12em}

/* ---------- 首页首屏 · 满屏背景 + 居中大字（Round 26） ---------- */
.hero.banner-full{
  position:relative;margin:0;padding:0;max-width:none;min-height:min(78vh,720px);
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  overflow:hidden;isolation:isolate;
  background:#0f1c17;color:#f2f6ee;
}
.banner-bg{position:absolute;inset:0;z-index:-2}
.banner-bg img{width:100%;height:100%;object-fit:cover;object-position:50% 58%;display:block}
/* 顶部压暗给导航留出层次，中部略亮，四周收边 */
.banner-full:before{
  content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(9,18,14,.86) 0%,rgba(9,18,14,.55) 26%,rgba(9,18,14,.62) 62%,rgba(9,18,14,.9) 100%),
    radial-gradient(120% 90% at 50% 42%,rgba(9,18,14,0) 34%,rgba(9,18,14,.55) 100%);
}
.banner-inner{
  position:relative;z-index:1;width:100%;max-width:1000px;margin:0 auto;
  padding:clamp(84px,11vh,132px) 24px clamp(20px,3vh,34px);
  text-align:center;display:flex;flex-direction:column;align-items:center;
}
.banner-full .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:11px;letter-spacing:.18em;color:#a9bda0;margin:0 0 clamp(20px,2.6vh,30px);
}
.banner-full .eyebrow:before{content:'';width:24px;height:1px;background:currentColor;opacity:.7}
.banner-full h1{
  margin:0;font-size:clamp(40px,7.4vw,88px);line-height:1.14;font-weight:500;
  letter-spacing:-.01em;color:#f7f9f3;text-wrap:balance;
}
.banner-full h1 .green-text{color:#a9cf6a;font-weight:500}
.banner-full p#intro{
  margin:clamp(22px,3vh,32px) auto 0;max-width:40em;
  font-size:clamp(14px,1.1vw,16px);line-height:2;color:#c2ccc0;white-space:normal;
}
.banner-full .hero-actions{margin-top:clamp(26px,3.4vh,38px);justify-content:center;gap:14px}
.banner-full .button{
  border-radius:999px;min-width:auto;padding:14px 30px;font-size:14px;
  border:1px solid transparent;
  box-shadow:none;
}
.banner-full .button.dark{background:#f3f6ec;color:#17251c;font-weight:600}
.banner-full .button.dark:hover{background:#ffffff;color:#17251c}
.banner-full .button.light-button{background:transparent;border-color:rgba(255,255,255,.42);color:#eef2e8}
.banner-full .button.light-button:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7)}

/* 底部四项：胶囊标签 */
.banner-pills{
  position:relative;z-index:1;list-style:none;margin:clamp(30px,5vh,56px) auto clamp(34px,5.5vh,54px);
  padding:0 24px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 12px;max-width:1100px;
}
.banner-pills li{
  display:inline-flex;align-items:center;gap:9px;padding:9px 18px 9px 12px;
  border:1px solid rgba(255,255,255,.16);border-radius:999px;
  background:rgba(255,255,255,.055);backdrop-filter:blur(6px);
  font-size:12.5px;color:#dbe4d6;letter-spacing:.01em;white-space:nowrap;
}
.banner-pills span{
  font-size:10.5px;font-weight:600;letter-spacing:.06em;color:#a9cf6a;
  background:rgba(169,207,106,.13);border-radius:999px;padding:2px 7px;
}

@media(max-width:860px){
  .hero.banner-full{min-height:auto}
  .banner-inner{padding:clamp(64px,9vh,92px) 22px 8px}
  .banner-full h1{font-size:clamp(32px,8.6vw,46px)}
  .banner-full p#intro{font-size:13.5px;line-height:1.95}
  .banner-pills{margin-top:26px;margin-bottom:32px;padding:0 18px;gap:8px}
  .banner-pills li{font-size:11.5px;padding:8px 14px 8px 10px}
}


/* ---------- 区块通用 ---------- */
.section{max-width:1700px;margin:auto;padding:76px 5%}
.home-cards .section{padding-top:76px;padding-bottom:76px}
.section-top{display:flex;justify-content:center;align-items:center;margin-bottom:14px;gap:24px}
.section-heading{display:block;text-align:center;margin:0 auto 36px;max-width:850px}
.section-heading p{max-width:720px;margin:16px auto 0;font-size:15px;line-height:1.85}
/* 痛点版块：大标题与小标题行距收紧 */
.section-heading-tight{max-width:920px;margin-bottom:30px}
.section-heading-tight h2{line-height:1.28;margin-bottom:0}
.section-heading-tight p{margin-top:10px;line-height:1.75}
.section-more{text-align:center;margin-top:28px}

/* ---------- 痛点（首页 02）· 卡片只留结论 + 专题入口 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.pain{border:1px solid var(--line);border-radius:16px;padding:26px 23px;background:var(--surface);box-shadow:0 6px 22px #22312a06;display:flex;flex-direction:column}
.number,.cap-top span:first-child,.step-number{display:grid;place-items:center;width:35px;height:35px;border-radius:9px;background:var(--sand);color:var(--accent);font-size:13px;letter-spacing:0}
/* 大标题：收紧上边距，与小标题行距压紧 */
.pain h3{font-size:21px;line-height:1.35;min-height:0;margin:16px 0 9px}
.pain p{font-size:13px;margin-bottom:4px}
.pain .pain-tag{margin:0 0 14px}
/* 本专题覆盖要点（来自用户问题库，替代原先的文章列表） */
.pain .pain-desc{font-size:12px;line-height:1.85;color:var(--muted);margin:0 0 18px}
.pain .read{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;transition:color .2s}
.pain .read:hover{color:var(--green-text)}
.pain:hover .read{color:var(--green-text)}
.read{font-size:13px;display:inline-block;color:var(--green-text);font-weight:500}

/* ---------- 能力（首页 03） ---------- */
.home-cards .capabilities{background:var(--tint);border-radius:24px}
.cap-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cap{padding:25px 27px;border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:0 4px 18px #22312a05;transition:transform .2s,border-color .2s}
.cap:hover{transform:translateY(-3px);border-color:var(--brand)}
.cap-top{display:flex;justify-content:space-between;font-size:13px;margin-bottom:22px;color:var(--accent)}
.cap h3{font-size:22px;margin-bottom:8px}
.cap-label{font-size:12px;display:block;letter-spacing:.08em;margin-bottom:12px;color:var(--green-text)}
.cap p{font-size:14px;line-height:1.9;margin:0}

/* ---------- 智稿云（首页 04） ----------
   结构：标题区居中通栏 → 下方两栏（左：功能+预约 / 右：视频）
   两栏 align-items:stretch + 各自内部撑开 → 上下边线对齐
*/
.platform{display:block;background:var(--surface);border:1px solid var(--line);border-radius:24px}
/* --- 顶部标题区（居中通栏） --- */
.platform-head{text-align:center;max-width:880px;margin:0 auto}
.platform-head .eyebrow{margin-bottom:14px}
.platform-head h2{margin:0 0 12px}
.platform-head h3{font-size:19px;font-weight:500;color:var(--green-text);margin:0 0 14px}
.platform-head>p{font-size:14px;line-height:1.9;margin:0 auto;max-width:760px}
/* --- 下方两栏 --- */
.platform-body{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;
  align-items:stretch;margin-top:44px;
  padding-top:38px;border-top:1px solid var(--line);
}
/* 左栏：功能列表撑开，预约卡贴底 —— 与右侧视频同高 */
.platform-copy{display:flex;flex-direction:column;min-width:0}
.feature-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:11px}
.feature-list li{border:1px solid var(--line);background:var(--bg);border-radius:11px;padding:15px 16px;font-size:12px;line-height:1.7;color:var(--muted)}
.feature-list span{display:block;font-size:11px;color:var(--accent);margin-bottom:6px;letter-spacing:.1em}
.feature-list b{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:4px}
.feature-list em{font-style:normal;display:block;font-size:11px;line-height:1.7;color:var(--muted)}
.feature-list li:last-child:nth-child(odd){grid-column:1/-1}
/* 产品预约卡：margin-top:auto 贴底，把左栏撑满 */
.cloud-contact{
  border-left:3px solid var(--brand);background:var(--tint);
  padding:24px 26px;margin-top:auto;border-radius:0 12px 12px 0;
  display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px;
}
/* 预约卡与上方功能列表的最小行距：auto 贴底 + 上间距由 .platform-copy 的 gap 保证 */
.platform-copy{gap:0}
.feature-list{margin-bottom:22px}
.cloud-contact .eyebrow{font-size:10px;letter-spacing:.14em;flex:1 0 100%;margin-bottom:4px;color:var(--accent)}
.cloud-contact strong{font-size:18px;font-weight:600;margin:0}
.cloud-phone{font-size:20px;letter-spacing:.03em;color:var(--green-text);white-space:nowrap;font-weight:500}
.cloud-phone:hover{text-decoration:underline}
.cloud-contact p{margin:0;flex:1 0 100%;font-size:12px!important;line-height:1.7}
/* 右栏：视频撑满整列高度 */
.video-column{background:var(--tint);border:1px solid var(--line);border-radius:20px;padding:18px;min-width:0;display:flex;flex-direction:column}
.video-stage{border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:#203123;display:flex;flex-direction:column;justify-content:center;position:relative;flex-shrink:0}
.video-stage video{width:100%;height:100%;position:absolute;inset:0;object-fit:contain}
.video-caption{display:flex;justify-content:space-between;margin-top:16px;margin-bottom:0;font-size:12px!important;gap:10px}

/* ---------- 流程（首页 05） ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.packaging-flow{grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;display:grid}
.packaging-flow article{position:relative;padding:22px 12px;background:var(--surface);border:1px solid var(--line);border-radius:13px;text-align:center}
.step-number{display:inline-grid;border-radius:50%}
.packaging-flow h3{font-size:18px;margin:18px 0 10px}
.packaging-flow p{font-size:12px;margin-bottom:4px}
.packaging-flow .meta{font-size:11px}
.packaging-flow article:not(:last-child):after{content:'›';position:absolute;right:-10px;top:48%;z-index:1;color:#b5a77e;font-size:24px;background:var(--bg);line-height:20px}

/* ---------- 案例（首页 06） ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.case-card{border:1px solid var(--line);border-radius:17px;overflow:hidden;background:var(--surface);box-shadow:0 6px 20px #22312a06}
.case-cover{background:#edf2e4;min-height:130px;padding:24px;position:relative;display:flex;flex-direction:column;justify-content:space-between;gap:16px}
.case-card:nth-child(2) .case-cover{background:#f2eee0}
.case-card:nth-child(3) .case-cover{background:#e9efe9}
.case-index{font-size:36px;line-height:1;color:#9aa184;font-weight:300}
.case-cover .eyebrow{font-size:10px}
.case-status{position:absolute;top:24px;right:20px;background:#ffffffb0;padding:4px 9px;border-radius:5px;color:#7a6f52;font-size:11px}
.case-content{padding:25px}
.case-content h3{font-size:22px;margin-bottom:14px}
.case-content p{font-size:14px;line-height:1.9}
.case-content .case-question{color:var(--ink);min-height:54px}
.case-tags{padding:12px 0;border-top:1px solid var(--line);font-size:12px;color:var(--muted);margin-bottom:14px}
.case-note{font-size:12px;text-align:center;margin:22px 0 0}

/* ---------- 工具（首页 07） ---------- */
.home-cards #tools{background:var(--tint);border-radius:24px}
.tool-shell{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--surface);box-shadow:0 6px 24px #22312a05}
.tool-tabs{display:flex;background:var(--surface);padding:14px 16px;gap:9px;border-bottom:1px solid var(--line)}
.tool-tabs button{flex:1;border:1px solid var(--line);background:var(--bg);border-radius:9px;padding:14px 8px;font-size:13px;color:var(--muted)}
.tool-tabs button[aria-selected=true]{background:var(--brand);color:#fff;border-color:var(--brand)}
.calculator-inner{display:grid;grid-template-columns:7fr 5fr}
.calc-input{padding:30px}
.calc-input h3{margin-bottom:8px}
.calc-input>p{font-size:14px}
.fields{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:25px}
label{display:block;font-size:14px;color:var(--muted)}
input,textarea{display:block;width:100%;background:var(--surface);border:1px solid #d8d2c2;border-radius:8px;padding:12px;margin-top:8px;color:var(--ink);min-width:0}
textarea{min-height:130px;resize:vertical}
.calc-result{background:#eef3e2;padding:32px;display:flex;flex-direction:column;justify-content:center}
.calc-result .eyebrow{color:var(--accent)}
.result-value{font-size:52px;line-height:1.3;letter-spacing:-.02em;margin:16px 0;color:var(--ink)}
.result-value small{font-size:20px}
.calc-result p,.formula{font-size:13px;line-height:1.8}
.formula{border-top:1px solid #d5ddc3;padding-top:18px;white-space:pre-line}
.calc-error{color:#a8442e;font-size:14px;min-height:24px;margin:16px 0 0}

/* ---------- FAQ（首页 08） ---------- */
.faq>div:first-child{text-align:center;margin-bottom:35px}
.faq h2{margin-top:14px}
.faq-intro{max-width:690px;margin:18px auto 0;font-size:15px}
.faq-filter{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin:0 0 18px}
.faq-filter button{border:1px solid var(--line);background:var(--surface);color:var(--muted);padding:10px 15px;border-radius:9px;font-size:13px}
.faq-filter button[aria-pressed=true]{background:var(--brand);border-color:var(--brand);color:#fff}
#faq-count{margin:0 0 18px;text-align:center}
.faq-grid-new{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
.faq details{border:1px solid var(--line);border-radius:12px;padding:0 24px;background:var(--surface)}
details summary{padding:20px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:15px;min-height:82px;line-height:1.75;color:var(--ink)}
summary:after{content:'+';font-size:20px;font-weight:300;color:var(--brand);flex-shrink:0}
details[open] summary:after{content:'−'}
.faq-answer{padding-bottom:23px}
.faq details p{font-size:14px;line-height:1.95}
.faq-answer .text-link{font-size:12px}

/* ---------- 联系（首页 09） ---------- */
.home-cards .contact{background:var(--tint-strong);border-radius:24px}
.cooperation-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:35px}
.cooperation-grid article{padding:25px;background:var(--surface);border:1px solid var(--line);border-radius:14px}
.cooperation-grid h3{font-size:20px;margin:18px 0 12px}
.cooperation-grid p{font-size:14px;margin-bottom:0}
.contact-bottom{border-top:1px solid #d5dfc2;padding-top:32px;display:flex;justify-content:space-between;align-items:center;gap:24px}
.contact-bottom h3{font-size:21px;margin-bottom:12px;color:var(--ink)}
.contact-bottom p{font-size:14px;margin:0}
.phone{font-size:29px;letter-spacing:.04em;display:block;margin-bottom:10px;color:var(--ink)}
.contact-bottom .meta{font-size:11px;margin-top:15px}

/* ---------- 页脚 ---------- */
footer{padding:50px 5% 35px;display:flex;align-items:center;justify-content:space-between;gap:24px;max-width:var(--max);margin:auto;border-top:1px solid var(--line)}
.footer-brand{font-size:22px;letter-spacing:.07em;color:var(--ink)}
.footer-brand span{font-size:12px;display:block;letter-spacing:.1em;margin-top:6px;color:var(--muted)}
footer>div{display:flex;gap:22px;font-size:12px}
footer small{font-size:12px;color:var(--muted)}

/* ---------- 弹窗 ---------- */
dialog{border:1px solid var(--line);border-radius:16px;padding:40px;width:min(600px,90vw);color:var(--ink);background:var(--surface)}
dialog::backdrop{background:#22312a66;backdrop-filter:blur(4px)}
dialog h2{font-size:32px;margin:20px 0}
dialog label{margin-bottom:20px}
.close{position:absolute;top:8px;right:12px;background:transparent;font-size:30px;color:var(--ink)}

/* ---------- 知识库页 ---------- */
.library h1{margin:30px 0}
.lead{font-size:18px;line-height:1.9}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:50px 0 35px;border-bottom:1px solid var(--line);padding-bottom:20px}
.filters button{padding:12px 20px;color:var(--muted);background:var(--tint);border-radius:9px}
.filters button[aria-pressed=true]{background:var(--brand);color:#fff}
.library-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.article-link{display:block;border:1px solid var(--line);border-radius:14px;padding:26px;background:var(--surface);height:100%;transition:border-color .2s}
.article-link:hover{border-color:var(--brand)}
.article-link .meta{font-size:12px;color:var(--accent)}
.article-link h3{font-size:22px;margin:16px 0}
.article-link p{font-size:14px}
.article-link .read{font-size:13px;color:var(--green-text)}

/* ---------- 文章页 ---------- */
.article-body{max-width:860px;padding:65px 30px 30px;margin:auto}
.breadcrumb{font-size:14px;margin-bottom:48px;color:var(--muted)}
.article-body h1{font-size:clamp(32px,4.2vw,50px);margin:25px 0}
.article-body .answer{padding:28px 32px;background:#eef3e2;border-left:3px solid var(--brand);border-radius:12px;margin:34px 0}
.answer p{font-size:18px;color:var(--ink);margin:14px 0 0}
.answer>p:first-child{margin-top:0}
.toc{display:flex;flex-direction:column;gap:8px;border-bottom:1px solid var(--line);padding:0 0 30px;font-size:14px}
.article-body section{padding-top:40px}
.article-body h2{font-size:28px;margin-bottom:18px}
.article-body section p{font-size:17px;line-height:2}
.takeaway{border-left:3px solid var(--accent);padding:10px 26px;margin:40px 0}
.takeaway p{margin:14px 0}
.sources{font-size:14px}
.sources a{text-decoration:underline;color:var(--green-text)}
.related{max-width:1160px}
.related .library-grid{grid-template-columns:1fr 1fr;margin-top:30px}
.article-contact{margin:38px 0 15px;padding-top:22px;border-top:1px solid var(--line);font-size:14px;line-height:2;color:var(--muted)}
.article-contact a{color:var(--green-text);text-decoration:underline;text-underline-offset:4px}
.company-solution{background:#eef3e2;color:var(--ink);border:1px solid #d8e0c6;border-radius:18px;padding:30px;margin:50px 0 20px}
.company-solution .eyebrow{color:var(--accent)}
.article-body .company-solution h2{font-size:26px;margin-top:15px}
.article-body .company-solution p{font-size:15px;line-height:1.95}
.solution-deliverables{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:25px 0}
.solution-deliverables>div{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:11px}
.solution-deliverables h3{font-size:17px}
.article-body .solution-deliverables p{font-size:14px;margin:10px 0 0}
.company-solution .meta{font-size:12px}
.company-solution .button{display:flex;justify-content:center;border-radius:8px;font-size:14px}
.solution-back{margin:20px 0 0;color:var(--green-text)}

/* ---------- 内容设置页 ---------- */
.editor{max-width:1050px}
.editor h1{font-size:44px;margin:20px 0}
.editor form{display:grid;gap:22px}
.editor-panel{background:var(--tint);border-radius:12px;padding:30px;margin:30px 0}
.editor-actions{display:flex;gap:16px;flex-wrap:wrap}
.editor video{width:100%;max-height:350px;background:#203123;margin-top:20px}
.editor .note{font-size:14px}
.editor input[type=file]{background:transparent}
.editor-status{margin:18px 0;color:var(--green-text)}

/* ---------- 卡片悬浮增强（痛点/能力/案例/知识卡统一手感） ---------- */
.cap,.case-card,.article-link,.cooperation-grid article,.pain{transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease}
.cap:hover,.case-card:hover,.article-link:hover,.cooperation-grid article:hover{transform:translateY(-5px);box-shadow:0 20px 44px #22312a14}
.pain:hover{transform:translateY(-3px);border-color:#d3c9ae}
.cap:hover,.article-link:hover{border-color:var(--brand)}
.case-card:hover{border-color:#d3c9ae}
.hoverable{cursor:pointer}

/* ---------- 滚动渐显 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}
.reveal-d2{transition-delay:.16s}
.reveal-d3{transition-delay:.24s}
.reveal-d4{transition-delay:.32s}
.reveal-d5{transition-delay:.4s}

/* ---------- 首屏文字逐行入场 ---------- */
.hero-rise{opacity:0;transform:translateY(18px);animation:heroRise .9s cubic-bezier(.22,.61,.36,1) forwards}
.hero-rise.d1{animation-delay:.1s}
.hero-rise.d2{animation-delay:.22s}
.hero-rise.d3{animation-delay:.34s}
.hero-rise.d4{animation-delay:.46s}
@keyframes heroRise{to{opacity:1;transform:none}}

/* ---------- 首屏图片缓慢浮现 ---------- */
.single-banner-image img{animation:heroImg 1.4s cubic-bezier(.22,.61,.36,1) both}
@keyframes heroImg{from{opacity:0;transform:scale(1.04)}to{opacity:1;transform:none}}

/* ---------- 流程卡片依次点亮 ---------- */
.packaging-flow article{opacity:0;transform:translateY(20px);animation:flowIn .6s cubic-bezier(.22,.61,.36,1) forwards}
.packaging-flow article:nth-child(1){animation-delay:.05s}
.packaging-flow article:nth-child(2){animation-delay:.14s}
.packaging-flow article:nth-child(3){animation-delay:.23s}
.packaging-flow article:nth-child(4){animation-delay:.32s}
.packaging-flow article:nth-child(5){animation-delay:.41s}
.packaging-flow article:nth-child(6){animation-delay:.5s}
@keyframes flowIn{to{opacity:1;transform:none}}

/* ---------- 卡片悬浮增强 ---------- */
.cap:hover,.case-card:hover,.article-link:hover,.cooperation-grid article:hover{transform:translateY(-5px);box-shadow:0 20px 44px #22312a14}
.cap:hover{transform:translateY(-5px) scale(1.01)}

/* ---------- 案例数据指标块 ---------- */
.case-metric{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0 4px}
.case-metric>div{background:var(--tint);border:1px solid var(--line);border-radius:12px;padding:10px 14px;flex:1;min-width:96px}
.case-metric b{display:block;font-size:19px;color:var(--green-text);line-height:1.35;letter-spacing:-.01em}
.case-metric span{font-size:11px;color:var(--muted);display:block;margin-top:2px}
.case-disclaimer{font-size:12px;color:var(--accent);text-align:center;margin:14px 0 0;line-height:1.9}

/* ---------- 痛点卡短标签 ---------- */
.pain-tag{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--brand);background:var(--tint);border:1px solid var(--line);border-radius:999px;padding:4px 11px;margin:14px 0 0;align-self:flex-start}

/* ---------- 能力卡英文标签 ---------- */
.cap-en{font-size:10px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}

/* ---------- 数字滚动 ---------- */
.count-up{font-variant-numeric:tabular-nums}

/* ---------- 回到顶部 ---------- */
.to-top{position:fixed;right:24px;bottom:24px;z-index:60;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#ffffffee;color:var(--ink);font-size:18px;cursor:pointer;display:grid;place-items:center;opacity:0;pointer-events:none;transform:translateY(10px);transition:opacity .3s,transform .3s;backdrop-filter:blur(8px)}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- 读者进度条 ---------- */
.read-progress{position:fixed;top:0;left:0;height:2px;background:var(--brand);z-index:70;width:0;transition:width .1s linear}

/* ---------- 链接下划线动效 ---------- */
.nav nav a{position:relative}
.nav nav a:after{content:'';position:absolute;left:0;right:100%;bottom:-6px;height:1px;background:var(--brand);transition:right .3s ease}
.nav nav a:hover:after{right:0}

/* ---------- 动效降级 ---------- */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
  .reveal,.hero-rise,.packaging-flow article{opacity:1!important;transform:none!important}
}

@media(max-width:700px){
  .case-metric>div{min-width:0;padding:9px 12px}
  .case-metric b{font-size:17px}
  .to-top{right:16px;bottom:16px;width:42px;height:42px}
}

/* ---------- 响应式 · 仅此两个断点 ---------- */
@media(max-width:1100px){
  .nav nav{gap:16px}
  .home-cards .hero.single-banner{grid-template-columns:1.3fr .9fr;gap:28px}
  .single-banner-image{min-height:400px}
  .hero-proof{gap:10px}
  .hero-proof b{font-size:11px}
  .cloud-contact strong{display:block;margin-bottom:4px}
  .section{padding-top:64px;padding-bottom:64px}
  .home-cards .section{padding-top:64px;padding-bottom:64px}
  .pain-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pain h3{min-height:0}
  .cap-grid{gap:16px}
  .cap h3{font-size:20px}
  .platform-body{grid-template-columns:1fr;gap:26px;margin-top:34px;padding-top:30px}
  .platform-head>p{font-size:13.5px}
  .packaging-flow{grid-template-columns:repeat(3,minmax(0,1fr))}
  .packaging-flow article:nth-child(3):after{display:none}
  .case-content{padding:20px}
  .case-content h3{font-size:20px}
  .fields{grid-template-columns:repeat(2,1fr)}
  .cooperation-grid{grid-template-columns:1fr 1fr}
  .library-grid{grid-template-columns:repeat(2,1fr)}
  .nav-contact span{margin-left:5px}
}
@media(max-width:700px){
  html{scroll-padding-top:145px}
  .nav{height:auto;min-height:0;flex-wrap:wrap;padding:14px 5% 12px;gap:12px}
  .brand{width:150px}
  .nav-contact{font-size:12px;margin-left:auto;border-bottom-color:#ffffff40}
  .nav nav{order:3;display:grid;grid-template-columns:repeat(3,1fr);width:100%;gap:8px 4px;font-size:12px;text-align:center;padding-top:10px;border-top:1px solid #ffffff14}
  .nav nav a:after{display:none}
  .home-cards .hero,.home-cards .section{padding-left:20px;padding-right:20px}
  .home-cards .hero.single-banner{grid-template-columns:1fr;padding:38px 20px 44px;gap:26px}
  .home-cards .hero.single-banner h1{font-size:clamp(26px,7.6vw,34px);margin:14px 0 16px;line-height:1.3}
  .single-banner p{font-size:14px;white-space:normal}
  .single-banner-image{min-height:0;aspect-ratio:1.35}
  .single-banner-image figcaption{font-size:9px;padding:25px 14px 14px;letter-spacing:.07em}
  .hero-proof{grid-template-columns:1fr;gap:0;margin-top:24px;padding-top:18px}
  .hero-proof>div{padding:11px 0;border-bottom:1px solid #ffffff14}
  .hero-proof>div:last-child{border-bottom:0}
  .hero-proof span{font-size:9px}
  .hero-proof b{font-size:12px;margin-top:5px}
  .hero-actions{gap:8px}
  .hero-actions .button{padding:12px 15px;font-size:12px}
  .hero-proof{margin-top:26px;padding-top:18px;gap:8px}
  .hero-proof b{font-size:11px}
  .home-cards .capabilities,.home-cards #tools,.home-cards .contact{border-radius:18px}
  .section{padding-top:56px;padding-bottom:56px}
  .home-cards .section{padding-top:48px;padding-bottom:48px}
  .section-heading{margin-bottom:26px}
  .section-heading p{font-size:14px}
  h2{font-size:21px;line-height:1.34}
  .section-heading-tight{max-width:100%;margin-bottom:22px}
  .section-heading-tight h2{font-size:20px;line-height:1.34}
  .section-heading-tight p{margin-top:9px;font-size:13px}
  .pain-grid{grid-template-columns:1fr;gap:14px}
  .pain{padding:22px}
  .pain h3{margin-top:15px}
  .cap-grid{grid-template-columns:1fr;gap:14px}
  .cap{padding:23px}
  .cap h3{font-size:22px}
  .feature-list{grid-template-columns:1fr}
  .feature-list li:last-child:nth-child(odd){grid-column:auto}
  .cloud-contact{padding:20px 20px}
  .video-column{padding:12px}
  .video-caption{font-size:10px!important}
  .cloud-contact strong{display:inline-block;margin-bottom:0}
  .cloud-phone{font-size:19px}
  .platform-copy{padding-bottom:4px}
  .platform-head h3{font-size:17px}
  .feature-list{gap:9px}
  .feature-list li{padding:13px 14px}
  .packaging-flow{grid-template-columns:1fr 1fr;gap:12px}
  .packaging-flow article:after{display:none}
  .case-grid{grid-template-columns:1fr;gap:18px}
  .case-cover{min-height:110px}
  .case-content{padding:23px}
  .case-content .case-question{min-height:0}
  .tool-tabs{padding:12px;gap:8px;display:grid;grid-template-columns:1fr 1fr}
  .tool-tabs button{padding:12px 5px;font-size:12px}
  .calculator-inner{grid-template-columns:1fr}
  .calc-input,.calc-result{padding:23px}
  .result-value{font-size:42px}
  .faq-grid-new{grid-template-columns:1fr;gap:12px}
  .faq details{padding:0 20px}
  .faq summary{font-size:14px;min-height:70px}
  .faq-intro{font-size:14px}
  .faq-filter{gap:7px}
  .faq-filter button{font-size:12px;padding:9px 11px}
  .cooperation-grid{grid-template-columns:1fr;gap:12px}
  .contact-bottom{display:block}
  .contact-bottom h3{font-size:20px}
  #contact-actions{margin-top:25px}
  footer{padding:35px 6%;display:block}
  footer>div{margin:24px 0}
  .library h1{font-size:38px}
  .filters{margin-top:35px;gap:7px}
  .filters button{padding:10px 13px;font-size:13px}
  .library-grid,.related .library-grid{grid-template-columns:1fr;gap:12px}
  .article-link{padding:23px}
  .article-body{padding:35px 6%}
  .article-body h1{font-size:32px}
  .article-body section p{font-size:16px}
  .article-body .answer{padding:24px}
  .breadcrumb{margin-bottom:30px}
  .company-solution{padding:24px}
  .article-body .company-solution h2{font-size:23px}
  .solution-deliverables{grid-template-columns:1fr;gap:12px}
  .company-solution .button{font-size:12px;padding:14px 12px}
  .editor h1{font-size:32px}
  .editor-panel{padding:22px}
  dialog{padding:30px 24px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* ---------- 公司活动资讯 · 官网归档页 ---------- */
.news-body{max-width:860px;margin:0 auto}
.news-body p,.news-body li{font-size:16px;line-height:2;color:var(--muted);margin:0 0 18px}
.news-body section{margin:0}
.news-body strong{color:var(--ink);font-weight:600}
.news-body h2,.news-body h3{font-size:22px;line-height:1.6;margin:28px 0 14px;color:var(--ink)}
.news-body ul,.news-body ol{margin:0 0 20px;padding-left:22px}
.news-body li{margin-bottom:8px}
.news-figure{margin:26px 0;text-align:center}
.news-figure img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:10px}
.news-video{font-size:14px;color:var(--muted);background:var(--tint);padding:14px 18px;border-radius:8px}
.news-end{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.news-end a{font-size:13px;color:var(--green-text);text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:9px 18px;background:var(--surface)}
.news-end a:hover{border-color:var(--brand-bright)}
.news-origin{width:100%;font-size:12px;color:var(--muted);line-height:1.8;margin:6px 0 0!important}
.news-index{max-width:1200px;margin:0 auto;padding:65px 30px 90px}
.news-index h1{font-size:clamp(32px,4.2vw,50px);margin:22px 0 20px;color:var(--ink)}
.activities-lead{max-width:860px;font-size:16px;line-height:2;color:var(--muted);margin:0 0 10px}
.news-count{font-size:13px;color:var(--muted);margin:0 0 32px}
.news-card-cover{display:block;margin:-6px -6px 16px;overflow:hidden;border-radius:9px;background:var(--tint)}
.news-card-cover img{display:block;width:100%;height:190px;object-fit:cover;transition:transform .4s ease}
.activity-card:hover .news-card-cover img{transform:scale(1.04)}
.news-index-link{display:inline-block;margin-top:18px;font-size:13px;color:var(--green-text)}
@media(max-width:720px){.news-index{padding:35px 6% 60px}.news-card-cover img{height:170px}}
.activity-new{font-size:11.5px;color:var(--green-text);letter-spacing:.04em;background:#e6eed8;border-radius:999px;padding:4px 10px}
/* ---------- 活动详情页 · 奖项表格与正文链接 ---------- */
.news-table-wrap{overflow-x:auto;margin:24px 0}
.news-table{width:100%;border-collapse:collapse;font-size:15px}
.news-table th,.news-table td{border:1px solid var(--line);padding:12px 16px;text-align:left;line-height:1.7;color:var(--muted)}
.news-table th{background:var(--tint);color:var(--ink);font-weight:600}
.news-body h3{font-size:18px;margin:24px 0 10px}
.news-body a{color:var(--green-text);text-underline-offset:3px;word-break:break-all}

/* ---------- 关于我们 · 公司简介 / 行业资源 / 合作客户 ---------- */
.about-page{background:var(--bg)}
.about-wrap{max-width:1200px;margin:0 auto;padding:65px 30px 100px}
.about-wrap .breadcrumb{margin-bottom:36px}
.about-hero{max-width:860px}
.about-hero h1{font-size:clamp(32px,4.2vw,50px);line-height:1.3;margin:18px 0 16px;color:var(--ink);font-weight:500;letter-spacing:-.01em}
.about-lead{font-size:16px;line-height:2;color:var(--muted);margin:0}
.about-section{margin-top:70px;padding-top:56px;border-top:1px solid var(--line)}
.about-section-head{text-align:center;margin-bottom:44px}
.about-en{display:block;font-size:13px;letter-spacing:.22em;color:var(--green-text);font-weight:600}
.about-section-head h2{font-size:clamp(24px,2.4vw,32px);line-height:1.5;margin:10px 0 0;color:var(--green-text);font-weight:500}
.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.profile-intro{font-size:16px;line-height:2.1;color:var(--muted);margin:0 0 30px}
.profile-intro strong{color:var(--ink);font-weight:600}
.about-address{font-style:normal;font-size:14px;line-height:2.1;color:var(--ink)}
.about-address span{display:block}
.about-stats{list-style:none;padding:0;margin:40px 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.about-stats li{border-top:1px solid var(--line);padding-top:18px}
.about-stats b{font-size:clamp(30px,3.2vw,44px);line-height:1;color:var(--brand);font-weight:500;letter-spacing:-.02em}
.about-unit{font-size:14px;color:var(--brand);margin-left:5px}
.about-stats em{display:block;font-style:normal;font-size:13px;color:var(--ink);margin-top:14px;letter-spacing:.04em}
.profile-photo{margin:0}
.profile-photo img{display:block;width:100%;height:auto;border-radius:10px;border:1px solid var(--line)}
.profile-photo figcaption{font-size:12px;color:var(--muted);margin-top:12px;text-align:right}
.about-claims{list-style:none;padding:0;margin:0 auto;max-width:920px;text-align:center}
.about-claims li{font-size:16px;line-height:2;color:var(--ink);padding:6px 0}
.about-org-logos{list-style:none;padding:0;margin:44px 0 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.about-org-logos li{background:var(--surface);border:1px solid var(--line);border-radius:8px;display:grid;place-items:center;padding:16px;transition:transform .25s ease,border-color .25s ease}
.about-org-logos li:hover{transform:translateY(-3px);border-color:var(--brand)}
.about-org-logos img{display:block;max-width:100%;height:auto}
.about-partner-wall{margin:0}
.about-partner-wall img{display:block;width:100%;height:auto;border-radius:10px}
.about-partner-wall figcaption{text-align:center;font-size:13px;color:var(--muted);line-height:1.8;margin-top:18px}
.about-wrap .news-end{margin-top:56px}
@media(max-width:900px){.profile-grid{grid-template-columns:1fr;gap:34px}.profile-photo{order:-1}.about-org-logos{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){.about-wrap{padding:35px 6% 60px}.about-section{margin-top:46px;padding-top:38px}.about-section-head{margin-bottom:30px}.about-claims li{font-size:15px}.about-stats{gap:10px}.about-stats b{font-size:28px}.about-unit{font-size:12px;margin-left:2px}}

/* ---------- 项目案例归档 · 总览 / 分类 / 详情页 ---------- */
.case-group{margin-top:58px;padding-top:42px;border-top:1px solid var(--line)}
.case-group h2{font-size:clamp(22px,2.4vw,30px);line-height:1.5;margin:0 0 14px;color:var(--ink);font-weight:500}
.case-group h2 span{display:inline-block;font-size:13px;letter-spacing:.12em;color:var(--green-text);margin-right:14px;font-weight:600}
.case-group-lead{max-width:900px;font-size:15px;line-height:2;color:var(--muted);margin:0 0 28px}
.case-scope{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0 34px}
.case-scope>div{background:var(--tint);border:1px solid var(--line);border-radius:12px;padding:20px 24px}
.case-scope b{display:block;font-size:24px;line-height:1.3;color:var(--brand);font-weight:500;letter-spacing:-.01em}
.case-scope span{display:block;font-size:12.5px;color:var(--muted);margin-top:8px}
.case-source-note{font-size:12px;color:var(--accent);line-height:1.9;margin:30px 0 0}
.activity-meta .case-cat{font-size:11.5px;color:var(--accent);letter-spacing:.04em}
.news-figure figcaption{text-align:center;font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.8}
.news-body p.img-caption{text-align:center;font-size:12.5px;color:var(--muted);margin:0 0 14px;line-height:1.8}
.case-note a{color:var(--green-text)}
@media(max-width:720px){.case-group{margin-top:42px;padding-top:30px}.case-scope{grid-template-columns:1fr}.case-scope b{font-size:21px}}

/* ============================================================
   首页版块色带 · 纸白 / 浅绿严格交替
   main 内第一个 section 是深色首屏，不计入色带；其后按 DOM 顺序
   奇偶轮换，避免相邻两块同色被读成合并的一个版块。
   仅作用于首页（.home-cards main），其他页面版块配色不受影响。
   收尾联系区沿用略深一档的 --tint-strong，仍属「绿」色带。
   ============================================================ */
.home-cards main > section.section{background:var(--bg)}
.home-cards main > section.section:nth-of-type(even){background:var(--tint)}
.home-cards main > section.section.contact{background:var(--tint-strong)}

/* ---------- 中英语言切换（导航右侧小图标） ---------- */
.lang-switch{display:inline-flex;align-items:center;gap:6px;margin-left:8px;padding:7px 12px;border:1px solid rgba(255,255,255,.3);border-radius:999px;color:#eef2e8;font-size:12px;letter-spacing:.06em;line-height:1;white-space:nowrap;transition:border-color .2s ease,background .2s ease,color .2s ease}
.lang-switch svg{width:15px;height:15px;flex:none}
.lang-switch:hover{border-color:#a9cf6a;background:rgba(169,207,106,.14);color:#fff}
.lang-switch--floating{position:fixed;top:104px;right:18px;z-index:30;background:#12211a;border-color:rgba(255,255,255,.32)}
@media(max-width:900px){.lang-switch{margin-left:4px;padding:6px 9px;font-size:11px}}
/* 英文标签比中文长：收窄导航间距、禁止 CTA 换行、收敛首屏字号 */
html[lang="en"] .nav{gap:16px}
html[lang="en"] .brand{width:160px;flex:none}
html[lang="en"] .nav nav{gap:16px;font-size:13px}
html[lang="en"] .nav-contact{white-space:nowrap;font-size:13px}
html[lang="en"] .banner-full h1{font-size:clamp(34px,5.4vw,66px);line-height:1.18}
@media(max-width:1100px){html[lang="en"] .nav{gap:10px}html[lang="en"] .nav nav{gap:10px;font-size:12px}html[lang="en"] .nav-contact{font-size:12px}}