/* ==========================================================================
   万物绿洲 OasisWKS 品牌站 · oasis.css
   设计规范（冻结版 v1.0）完整实现 · 全部类名 o- 前缀
   独立引入，不依赖/不修改商城 style.css / my.css
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --o-ink:    #0B2D24;  /* 近黑深绿：正文文字、深色页脚底 */
  --o-deep:   #0E3B2E;  /* 深森林绿：品牌主深色、品牌 mark 渐变起点 */
  --o-pine:   #14503C;  /* 松绿：按钮 hover、标签文字 */
  --o-teal:   #1F9E80;  /* 品牌青绿主色：kicker/链接/主按钮渐变起点 */
  --o-teal-2: #2FBF94;  /* 渐变亮青绿：主按钮渐变终点、渐变文字 */
  --o-mint:   #7FE0C0;  /* 薄荷：深色底上点缀、hero 数字点缀 */
  --o-sage:   #EEF4EF;  /* 淡青灰绿：区块底/图标底 */
  --o-paper:  #F8FBF8;  /* 页面底色 */
  --o-line:   #DCE8DF;  /* 发丝分隔线/描边 */
  --o-muted:  #5A6E64;  /* 次要文字 */
  --o-gold:   #C9A15A;  /* 克制金点缀（备用） */
  --o-max: 1220px;      /* 内容最大宽度 */
  --o-r:   18px;        /* 卡片圆角 */
  --o-shadow: 0 1px 2px rgba(11,45,36,.05), 0 18px 50px -28px rgba(11,45,36,.25);

  --o-font-body: "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --o-font-eng:  "Space Grotesk","Noto Sans SC",sans-serif;
}

/* ---------- 2. 基础重置与排版 ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--o-font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--o-ink);
  background:var(--o-paper);
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--o-teal);color:#fff;}
body.o-locked{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--o-teal);text-decoration:none;}
a:hover{color:var(--o-pine);}
h1,h2,h3,h4{margin:0;font-weight:900;line-height:1.2;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;}

.o-eng{font-family:var(--o-font-eng);letter-spacing:.02em;}

/* 渐变文字 */
.o-grad-text{
  background:linear-gradient(90deg,#B7F2DE,var(--o-teal-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- 3. 版式容器与区块 ---------- */
.o-container{width:min(var(--o-max),92%);margin-inline:auto;}
.o-section{padding:clamp(46px,5.5vw,80px) 0;}
.o-section--sage{background:var(--o-sage);}

/* 分区块背景修饰类（模板挂在 <section class="o-section o-sec-xxx">） */
.o-sec-sage{background:var(--o-sage);box-shadow:inset 0 1px 0 var(--o-line);}
.o-sec-paper{background:var(--o-paper);box-shadow:inset 0 1px 0 rgba(220,232,223,.6);}
.o-banner + .o-section{padding-top:clamp(36px,4vw,56px);}
.o-sec-deep{
  background:var(--o-deep);color:#fff;
  border-top:1px solid rgba(255,255,255,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
/* 深块内：区块头浅字、kicker 薄荷、lead 半透白 */
.o-sec-deep .o-sec-head h2{color:#fff;}
.o-sec-deep .o-kicker{color:var(--o-mint);}
.o-sec-deep .o-kicker::before{background:var(--o-mint);}
.o-sec-deep .o-lead{color:rgba(255,255,255,.78);}
/* 深块内卡片转浅底深字，保留描边与 hover */
.o-sec-deep .o-ind-card,
.o-sec-deep .o-duo-item{
  background:var(--o-paper);color:var(--o-ink);
}
.o-sec-deep .o-ind-card p,
.o-sec-deep .o-duo-item p{color:var(--o-muted);}
.o-sec-deep .o-ind-card:hover,
.o-sec-deep .o-duo-item:hover{background:#fff;}

/* 区块头：kicker → h2 → lead */
.o-sec-head{max-width:860px;margin-bottom:clamp(16px,2.2vw,26px);}
.o-kicker{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--o-font-eng);font-size:12px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--o-teal);
  margin:0 0 16px;
}
.o-kicker::before{content:"";width:26px;height:2px;background:var(--o-teal);display:inline-block;}
.o-sec-head h2{font-size:clamp(26px,4.2vw,46px);font-weight:900;line-height:1.22;letter-spacing:-.01em;}
.o-lead{font-size:clamp(15px,1.6vw,17px);color:var(--o-muted);margin:18px 0 0;max-width:720px;}

/* 深色区块 .light 修饰 */
.o-section.light h2{color:#fff;}
.o-section.light .o-lead{color:rgba(238,244,239,.78);}
.o-section.light .o-kicker{color:var(--o-mint);}
.o-section.light .o-kicker::before{background:var(--o-mint);}
.o-cta-band{background:linear-gradient(120deg,var(--o-deep),var(--o-pine));}

/* 编号叙事 */
.o-num{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--o-font-eng);font-size:13px;font-weight:700;
  letter-spacing:.14em;color:var(--o-teal);
}
.o-num::after{content:"";flex:1;height:1px;background:var(--o-line);}

/* 面包屑 */
.o-breadcrumb{font-size:13px;color:var(--o-muted);margin:18px 0 0;}
.o-breadcrumb a{color:var(--o-muted);}
.o-breadcrumb a:hover{color:var(--o-teal);}
.o-breadcrumb .o-bc-sep{margin:0 8px;color:var(--o-line);}
.o-breadcrumb .o-bc-current{color:var(--o-ink);}

/* ---------- 4.1 顶部导航 ---------- */
.o-site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:18px 0;
  background:transparent;
  transition:padding .3s ease,background .3s ease,box-shadow .3s ease;
}
.o-site-header.scrolled{
  background:rgba(248,251,248,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 0 0 1px var(--o-line);
  padding:10px 0;
}
.o-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;}

/* brand —— 透明态默认白色（深色 hero 上），.scrolled 态转墨色 */
.o-brand{display:inline-flex;align-items:center;gap:12px;color:#fff;transition:color .3s ease;}
.o-brand:hover{color:#fff;}
.o-site-header.scrolled .o-brand{color:var(--o-ink);}
.o-site-header.scrolled .o-brand:hover{color:var(--o-ink);}
.o-brand-mark{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;
  background:linear-gradient(135deg,var(--o-deep),var(--o-teal-2));
  display:inline-flex;align-items:center;justify-content:center;color:#fff;
}
.o-brand-mark svg{width:24px;height:24px;}
.o-brand-text{display:flex;flex-direction:column;line-height:1.15;}
.o-logo-lat{font-family:var(--o-font-eng);font-weight:700;font-size:19px;letter-spacing:.02em;color:#fff;transition:color .3s ease;}
.o-site-header.scrolled .o-logo-lat{color:var(--o-ink);}
.o-logo-lat .o-wks{
  background:linear-gradient(90deg,var(--o-mint),var(--o-teal-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.o-brand-sub{font-size:11px;color:rgba(255,255,255,.7);letter-spacing:.02em;transition:color .3s ease;}
.o-site-header.scrolled .o-brand-sub{color:var(--o-muted);}

/* 导航链接 —— 15px/600，间距加大 */
.o-nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0;}
.o-nav-links>li>a,
.o-nav-drop-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 4px;border-radius:9px;background:none;border:none;cursor:pointer;
  font-family:inherit;font-size:15px;font-weight:600;letter-spacing:.01em;
  color:rgba(255,255,255,.92);
  transition:background .2s ease,color .2s ease;
}
.o-nav-links>li>a:hover,
.o-nav-drop:hover>.o-nav-drop-btn,
.o-nav-drop.open>.o-nav-drop-btn{background:rgba(255,255,255,.12);color:#fff;}
.o-site-header.scrolled .o-nav-links>li>a,
.o-site-header.scrolled .o-nav-drop-btn{color:var(--o-ink);}
.o-site-header.scrolled .o-nav-links>li>a:hover,
.o-site-header.scrolled .o-nav-drop:hover>.o-nav-drop-btn,
.o-site-header.scrolled .o-nav-drop.open>.o-nav-drop-btn{background:rgba(31,158,128,.08);color:var(--o-teal);}
.o-nav-links .o-active{color:var(--o-teal)!important;}
.o-caret{width:13px;height:13px;transition:transform .25s ease;opacity:.85;}
.o-nav-drop.open>.o-nav-drop-btn .o-caret{transform:rotate(180deg);}

/* 二级下拉面板（.o-nav-drop / .o-nav-sub）—— 浅不透明底、深字，两态一致 */
.o-nav-drop{position:relative;}
.o-nav-sub{
  position:absolute;top:calc(100% + 12px);left:50%;
  transform:translateX(-50%) translateY(8px);
  min-width:240px;background:#fff;border:1px solid var(--o-line);border-radius:14px;
  box-shadow:var(--o-shadow);padding:8px;list-style:none;margin:0;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.o-nav-drop:hover>.o-nav-sub,
.o-nav-drop.open>.o-nav-sub{
  opacity:1;visibility:visible;pointer-events:auto;
  transform:translateX(-50%) translateY(0);
}
.o-nav-sub a{
  display:block;padding:11px 14px;border-radius:9px;
  font-size:14px;font-weight:600;color:var(--o-ink);
  transition:background .18s ease,color .18s ease;
}
.o-nav-sub a:hover{background:rgba(31,158,128,.08);color:var(--o-teal);}

.o-nav-cta{
  background:var(--o-ink)!important;color:#fff!important;
  padding:11px 22px!important;border-radius:999px!important;margin-left:6px;
  font-size:14px!important;
  transition:background .2s ease;
}
.o-nav-cta:hover{background:var(--o-pine)!important;color:#fff!important;}

/* 汉堡按钮 */
.o-nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--o-line);background:#fff;color:var(--o-ink);
  align-items:center;justify-content:center;cursor:pointer;flex:0 0 auto;
}
.o-nav-toggle svg{width:22px;height:22px;}
.o-nav-toggle.o-active{background:var(--o-ink);color:#fff;border-color:var(--o-ink);}

/* ---------- 4.2 按钮 ---------- */
.o-btn{
  display:inline-flex;align-items:center;gap:9px;
  border-radius:999px;font-size:15px;font-weight:700;
  padding:15px 28px;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.o-btn svg{width:18px;height:18px;}
.o-btn-primary{
  background:linear-gradient(90deg,var(--o-teal),var(--o-teal-2));color:#fff;
  box-shadow:0 14px 34px -16px rgba(47,191,148,.7);
}
.o-btn-primary:hover{transform:translateY(-2px);color:#fff;filter:brightness(1.05);}
.o-btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.34);color:#fff;}
.o-btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.6);}
.o-btn-line{background:#fff;border:1px solid var(--o-line);color:var(--o-ink);}
.o-btn-line:hover{border-color:var(--o-teal);color:var(--o-teal);}
.o-btn:active{transform:translateY(0) scale(.98);filter:none;}

/* ---------- 4.2b Hero 首屏 ---------- */
.o-hero{min-height:100svh;display:flex;align-items:center;color:#fff;position:relative;overflow:hidden;background:url('../img/hero-oasis.jpg') center/cover no-repeat;}
.o-hero-bg{position:absolute;inset:0;z-index:0;}
.o-hero-bg img{width:100%;height:100%;object-fit:cover;filter:saturate(1.05) brightness(1.07);}
.o-hero-bg::after{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(6,26,21,.45) 0%,rgba(6,26,21,.18) 55%,transparent 100%),
  linear-gradient(180deg,rgba(6,26,21,.30) 0%,transparent 45%,rgba(6,26,21,.25) 100%);}
.o-hero-inner{position:relative;z-index:2;padding:128px 0 72px;}
.o-hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;color:var(--o-mint);margin-bottom:26px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  padding:9px 16px;border-radius:999px;backdrop-filter:blur(4px);
}
.o-hero h1{
  font-size:clamp(34px,6.4vw,76px);font-weight:900;line-height:1.12;letter-spacing:-.015em;max-width:880px;
}
.o-grad{
  background:linear-gradient(90deg,#B7F2DE,var(--o-teal-2) 60%,#4ED2AC);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.o-hero-sub{margin-top:26px;font-size:clamp(16px,2vw,19px);color:rgba(238,244,239,.88);max-width:660px;font-weight:400;}
.o-hero-sub b{color:#fff;font-weight:600;}
.o-hero-actions{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap;}
.o-hero-stats{
  display:flex;gap:clamp(24px,5vw,64px);margin-top:60px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.16);padding-top:26px;
}
.o-stat .o-stat-num{
  font-family:var(--o-font-eng);font-size:clamp(26px,3.4vw,40px);
  font-weight:700;color:#fff;line-height:1;
}
.o-stat .o-stat-num em{font-style:normal;color:var(--o-mint);margin-left:2px;}
.o-stat-lbl{font-size:12.5px;color:rgba(238,244,239,.7);margin-top:6px;letter-spacing:.04em;}
.o-hero-scroll{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;
  color:rgba(255,255,255,.6);font-size:11px;letter-spacing:.2em;
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.o-hero-scroll::after{content:"";width:1px;height:34px;background:linear-gradient(var(--o-mint),transparent);}

/* ---------- 4.2c 标语条 ---------- */
.o-strap{background:var(--o-deep);color:#E9F5EF;overflow:hidden;border-top:1px solid rgba(255,255,255,.08);}
.o-strap-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0;flex-wrap:wrap;}
.o-strap p{font-size:clamp(14px,1.6vw,18px);font-weight:500;margin:0;}
.o-strap p b{color:var(--o-mint);font-weight:700;}

/* ---------- 4.2d 品牌系统（深色理念区） ---------- */
.o-brandsys{position:relative;color:#E9F5EF;}
.o-brandsys-bg{position:absolute;inset:0;z-index:0;}
.o-brandsys-bg img{width:100%;height:100%;object-fit:cover;opacity:.9;}
.o-brandsys-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,26,21,.92),rgba(9,32,26,.94));}
.o-brandsys-inner{position:relative;z-index:2;}
.o-brandsys-quote{
  font-size:clamp(24px,3.6vw,40px);font-weight:900;line-height:1.4;max-width:820px;margin:34px 0;
}
.o-brandsys-quote .o-grad{
  background:linear-gradient(90deg,#B7F2DE,var(--o-teal-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.o-brandsys-who{font-size:15px;color:rgba(238,244,239,.75);max-width:640px;}
.o-brandsys-flow{
  display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:52px;text-align:center;
}
.o-flow-node{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:14px;padding:20px 8px;font-size:13px;font-weight:600;letter-spacing:.04em;
}
.o-flow-node b{
  display:block;font-family:var(--o-font-eng);font-size:11px;font-weight:700;
  letter-spacing:.2em;color:var(--o-mint);margin-bottom:8px;text-transform:uppercase;
}

/* ---------- 4.3 卡片 ---------- */
/* 服务卡 */
.o-svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(12px,1.5vw,18px);}
.o-svc-card{
  border-top:2px solid var(--o-line);padding:24px 4px 4px;
  transition:border-color .25s ease,transform .25s ease;
}
.o-svc-card:hover{border-top-color:var(--o-teal-2);transform:translateY(-3px);}
.o-svc-icon{
  width:52px;height:52px;border-radius:14px;background:var(--o-sage);
  border:1px solid var(--o-line);
  display:flex;align-items:center;justify-content:center;color:var(--o-teal);
  margin-bottom:20px;transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.o-svc-card:hover .o-svc-icon{background:var(--o-teal);border-color:var(--o-teal);color:#fff;}
.o-svc-icon svg{width:26px;height:26px;}
.o-svc-card h3{font-size:19px;font-weight:900;margin-bottom:10px;}
.o-svc-card p{font-size:14.5px;color:var(--o-muted);margin:0 0 16px;}
.o-svc-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:700;color:var(--o-teal);
}
.o-svc-more:hover{color:var(--o-pine);}
.o-svc-more svg{width:14px;height:14px;transition:transform .2s ease;}
.o-svc-card:hover .o-svc-more svg{transform:translateX(3px);}

/* 双能力卡 */
.o-duo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(12px,1.5vw,18px);}
.o-duo-item{
  background:var(--o-paper);border:1px solid var(--o-line);border-radius:var(--o-r);
  padding:clamp(24px,2.6vw,36px);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.o-duo-item:hover{transform:translateY(-4px);box-shadow:var(--o-shadow);border-color:var(--o-teal-2);}
.o-tag{
  display:inline-block;font-size:12.5px;font-weight:600;
  color:var(--o-pine);background:rgba(31,158,128,.1);
  border:1px solid rgba(31,158,128,.22);border-radius:999px;
  padding:5px 12px;margin-bottom:18px;
}
.o-duo-item h3{font-size:clamp(20px,2.4vw,27px);font-weight:900;margin-bottom:14px;}
.o-duo-item p{color:var(--o-muted);font-size:15px;margin:0;}

/* 案例卡 */
.o-case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(12px,1.5vw,18px);}
.o-case-card{
  border:1px solid var(--o-line);border-radius:var(--o-r);overflow:hidden;
  background:var(--o-paper);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.o-case-card:hover{box-shadow:var(--o-shadow);transform:translateY(-4px);border-color:var(--o-teal-2);}
.o-case-media{position:relative;aspect-ratio:3/2;overflow:hidden;}
.o-case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.o-case-card:hover .o-case-media img{transform:scale(1.045);}
.o-case-tag{
  position:absolute;top:16px;left:16px;font-size:12px;font-weight:600;color:#E9F5EF;
  background:rgba(6,26,21,.72);border-radius:999px;padding:7px 13px;backdrop-filter:blur(4px);
}
.o-case-body{padding:20px 22px 24px;}
.o-case-brand{
  font-family:var(--o-font-eng);font-size:12px;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;color:var(--o-teal);margin-bottom:8px;
}
.o-case-body h3{font-size:clamp(18px,2vw,22px);font-weight:900;margin-bottom:8px;}
.o-case-body p{font-size:14px;color:var(--o-muted);margin:0;}

/* 行业卡 */
.o-ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.5vw,18px);}
.o-ind-card{
  background:var(--o-sage);border:1px solid var(--o-line);border-radius:var(--o-r);padding:24px 22px;
  transition:transform .25s ease,background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.o-ind-card:hover{transform:translateY(-4px);background:var(--o-paper);box-shadow:var(--o-shadow);border-color:var(--o-teal-2);}
.o-ind-card h3{font-size:17px;font-weight:900;margin-bottom:8px;}
.o-ind-card p{font-size:13.5px;color:var(--o-muted);margin:0;}

/* ---------- 4.5 面包屑已在上方 ---------- */

/* ---------- 4.6 联系表单 .o-form-card ---------- */
.o-form-card{
  background:var(--o-paper);border:1px solid var(--o-line);border-radius:var(--o-r);
  box-shadow:var(--o-shadow);padding:clamp(20px,2.6vw,30px);
}
.o-f-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.o-f-field{display:flex;flex-direction:column;gap:7px;}
.o-f-field--full{grid-column:1 / -1;}
.o-f-field label{font-size:13px;font-weight:600;color:var(--o-pine);}
.o-f-field label .req{color:#d64545;margin-left:2px;}
.o-f-field input,
.o-f-field select,
.o-f-field textarea{
  font-family:inherit;font-size:14px;color:var(--o-ink);
  padding:13px 15px;border:1px solid var(--o-line);border-radius:11px;
  background:#fff;width:100%;transition:border-color .2s ease,box-shadow .2s ease;
}
.o-f-field textarea{min-height:92px;resize:vertical;}
.o-f-field input:focus,
.o-f-field select:focus,
.o-f-field textarea:focus{
  outline:none;border-color:var(--o-teal);
  box-shadow:0 0 0 3px rgba(31,158,128,.15);
}
.o-form-card .o-btn-primary{width:100%;justify-content:center;margin-top:6px;}
.o-form-note{font-size:12px;color:var(--o-muted);text-align:center;margin:14px 0 0;}
.o-f-full,.o-f-field--full{grid-column:1 / -1;}

/* ---------- 4.6b 联系页布局 ---------- */
.o-contact-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(24px,4vw,56px);align-items:start;}
.o-contact-info{max-width:560px;}
.o-contact-prose{margin-top:28px;padding-top:24px;border-top:1px solid var(--o-line);}
@media (max-width:860px){
  .o-contact-grid{grid-template-columns:1fr;}
}

/* ---------- 4.7 FAQ 手风琴 ---------- */
.o-faq-list{max-width:900px;margin:0 auto;}
.o-faq-item{border-bottom:1px solid var(--o-line);}
.o-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:none;cursor:pointer;text-align:left;
  font-family:inherit;font-size:clamp(16px,1.9vw,19px);font-weight:700;line-height:1.4;color:var(--o-ink);
  padding:22px 8px;
}
.o-faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--o-line);display:flex;align-items:center;justify-content:center;
  font-size:18px;line-height:1;color:var(--o-teal);transition:transform .3s ease,background .3s ease,color .3s ease;
}
.o-faq-item.o-open .o-faq-icon{transform:rotate(45deg);background:var(--o-teal);border-color:var(--o-teal);color:#fff;}
.o-faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.o-faq-a-inner{padding:0 8px 24px;color:var(--o-muted);font-size:15px;max-width:720px;}

/* ---------- 4.8 页脚 ---------- */
.o-footer{background:var(--o-ink);color:#A9BFB4;font-size:14px;}
.o-footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:clamp(24px,4vw,48px);
  padding:clamp(50px,7vw,74px) 0 44px;
}
.o-footer .o-f-brand .o-logo-lat{color:#fff;font-size:20px;}
.o-footer .o-f-brand p{font-size:14px;color:#8FA69B;margin:16px 0 0;max-width:300px;}
.o-f-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.o-f-col ul{list-style:none;display:grid;gap:10px;}
.o-f-col a{color:#A9BFB4;font-size:14px;}
.o-f-col a:hover{color:var(--o-mint);}
.o-f-col .o-f-contact-line{font-size:14px;color:#A9BFB4;}
.o-footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;font-size:12.5px;color:#7C9387;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
}

/* ---------- 滚动显现 .o-rv ---------- */
.o-rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease;}
.o-rv.o-in{opacity:1;transform:none;}

/* ---------- 列表分页 .o-pager ---------- */
.o-pager{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;margin-top:clamp(34px,5vw,54px);}
.o-pager a,.o-pager .o-pager-current,.o-pager span{
  min-width:40px;height:40px;padding:0 12px;border:1px solid var(--o-line);border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--o-ink);background:#fff;
}
.o-pager a:hover{border-color:var(--o-teal);color:var(--o-teal);}
.o-pager .o-pager-current{background:var(--o-teal);border-color:var(--o-teal);color:#fff;}
.o-pager .o-pager-disabled{color:var(--o-line);background:var(--o-paper);}

/* ---------- 文章正文排版 .o-prose ---------- */
.o-prose{font-size:15.5px;line-height:1.8;color:var(--o-ink);max-width:760px;}
.o-prose h2{font-size:clamp(22px,3vw,28px);font-weight:900;margin:1.8em 0 .7em;line-height:1.3;}
.o-prose h3{font-size:clamp(18px,2.2vw,21px);font-weight:900;margin:1.5em 0 .6em;line-height:1.35;}
.o-prose p{margin:0 0 1.1em;}
.o-prose ul,.o-prose ol{margin:0 0 1.1em;padding-left:1.4em;}
.o-prose li{margin-bottom:.5em;}
.o-prose blockquote{
  margin:1.6em 0;padding:14px 20px;border-left:3px solid var(--o-teal);
  background:var(--o-sage);border-radius:0 10px 10px 0;color:var(--o-muted);
}
.o-prose blockquote p:last-child{margin-bottom:0;}
.o-prose a{color:var(--o-teal);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease;}
.o-prose a:hover{color:var(--o-pine);text-underline-offset:4px;}
.o-prose img{border-radius:var(--o-r);margin:1.4em 0;}

/* ---------- Toast ---------- */
.o-toast{
  position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(20px);
  background:var(--o-ink);color:#fff;font-size:14px;font-weight:500;
  padding:13px 22px;border-radius:999px;box-shadow:var(--o-shadow);
  opacity:0;pointer-events:none;transition:opacity .3s ease,transform .3s ease;z-index:2000;
  max-width:90vw;text-align:center;
}
.o-toast.o-show{opacity:1;transform:translateX(-50%) translateY(0);}
.o-toast.o-toast-err{background:#b3402f;}

/* ---------- 5. 响应式断点 ---------- */
@media (max-width:1024px){
  .o-svc-grid{grid-template-columns:repeat(2,1fr);}
  .o-ind-grid{grid-template-columns:repeat(2,1fr);}
  .o-footer-grid{grid-template-columns:repeat(2,1fr);}
  .o-brandsys-flow{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:860px){
  .o-nav-toggle{display:inline-flex;}
  .o-nav-links{
    position:fixed;inset:0;flex-direction:column;justify-content:center;gap:14px;
    background:rgba(6,26,21,.97);transform:translateX(100%);transition:transform .35s ease;
    visibility:hidden;
  }
  .o-nav-links.o-open{transform:translateX(0);visibility:visible;}
  .o-nav-links>li>a{color:#E9F5EF;font-size:18px;padding:12px 18px;}
  .o-nav-cta{margin-left:0;margin-top:8px;}
  /* 移动端「服务」下拉改手风琴：静态展开、透明底、白字 */
  .o-nav-drop{position:static;}
  .o-nav-drop>.o-nav-drop-btn{color:#E9F5EF;font-size:18px;padding:12px 18px;}
  .o-nav-drop>.o-nav-drop-btn:hover,
  .o-nav-drop.open>.o-nav-drop-btn{color:var(--mint);background:transparent;}
  .o-nav-sub{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    min-width:0;width:100%;background:transparent;border:none;border-radius:0;
    box-shadow:none;padding:0 0 8px 18px;display:none;
  }
  .o-nav-drop.open>.o-nav-sub{display:block;transform:none;}
  .o-nav-sub a{color:#E9F5EF;font-size:16px;font-weight:500;padding:9px 12px;border-radius:8px;}
  .o-nav-sub a:hover{background:rgba(255,255,255,.08);color:var(--mint);}
  .o-duo-grid,.o-case-grid,.o-f-grid{grid-template-columns:1fr;}
  .o-brandsys-flow{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:560px){
  .o-svc-grid,.o-ind-grid{grid-template-columns:1fr;}
  .o-footer-grid{grid-template-columns:1fr;}
  .o-f-field input,.o-f-field select,.o-f-field textarea{font-size:16px;}
  .o-btn{width:100%;justify-content:center;}
  .o-pager a,.o-pager .o-pager-current,.o-pager span{min-width:44px;height:44px;}
  .o-hero-actions{gap:10px;}
  .o-prose{font-size:15px;}
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .o-rv{opacity:1;transform:none;}
}

/* ---------- 内页统一 Banner .o-banner（公共 include：public/oasis_banner.html） ---------- */
/* 高度基准：以 /cases 原 .o-page-banner padding:148px 0 54px 为基准 */
/* desktop 渲染总高 ≈ 148 + 面包屑行高(20) + H1行高(50*1.16=58) + 下padding 54 ≈ 300px */
/* mobile(≤768px) 一档对应值 ≈ 96 + 20 + H1(30*1.16=35) + 36 ≈ 210px */
.o-banner{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--o-deep);
  background-size:cover;background-position:center;background-repeat:no-repeat;
}
.o-banner .o-banner-inner{position:relative;padding:148px 0 54px;}
.o-banner-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;
  font-size:13px;color:rgba(238,244,239,.72);
  margin:0 0 22px;padding:0;
}
.o-banner-breadcrumb a{color:rgba(238,244,239,.72);text-decoration:none;}
.o-banner-breadcrumb a:hover{color:var(--o-mint);}
.o-banner-breadcrumb .o-bc-sep{margin:0 8px;color:rgba(238,244,239,.4);}
.o-banner-breadcrumb .o-bc-current{color:#fff;}
.o-banner-title{
  color:#fff;font-size:clamp(30px,5vw,50px);font-weight:900;
  line-height:1.16;letter-spacing:-.01em;margin:0;
}
.o-banner-sub{
  margin:16px 0 0;font-size:clamp(15px,1.6vw,17px);
  color:rgba(238,244,239,.82);max-width:760px;line-height:1.6;
}
@media (max-width:768px){
  .o-banner .o-banner-inner{padding:96px 0 36px;}
  .o-banner-breadcrumb{margin-bottom:16px;}
}