/* ============================================================
   guyuan_design_rampart —— 长城夯土 · 城市站模板
   视觉语言：暖砂白底 / 砂岩深褐主色 / 六盘松绿辅色 / 高原麦金点缀
   图形母题：萧关长城垛口（rampart crenel）—— 城墙顶部方齿轮廓
   密度：标准 80px ｜ 边角：胶囊 24px+ ｜ 分隔：色块交替
   标题排版：C 大号编号 ｜ 导航：透明叠 hero（滚动变实色）
   ============================================================ */

/* ========== 设计令牌 ========== */
:root{
  /* —— 色彩 —— */
  --bg:          #FAF7F2;    /* 暖砂白 */
  --bg-alt:      #F2EDE4;    /* 夯土浅 */
  --bg-deep:     #EFE7DA;    /* 夯土深（色块交替用） */
  --surface:     #FFFFFF;

  --brand:       #6B4A2F;    /* 砂岩深褐（主色） */
  --brand-deep:  #4A3120;    /* 深褐（深底） */
  --brand-soft:  #8B6A4C;
  --brand-tint:  #F3ECE2;

  --accent:      #2F6B4F;    /* 六盘松绿（辅色） */
  --accent-deep: #23513C;
  --accent-tint: #E8F1EC;

  --gold:        #C9A227;    /* 高原麦金（点缀） */
  --gold-soft:   #E4CE86;

  --ink:         #241C14;
  --text:        #241C14;    /* 白底 15.4:1 */
  --text-soft:   #4A3C30;    /* 白底 10.6:1 */
  --text-light:  #6B5A4A;    /* 白底 6.6:1 (≤ #64748b 且 ≥5.5:1) */
  --gray:        #94A09B;    /* (≤ #94a3b8) */
  --gray-light:  #CDD3CE;    /* border/divider (≤ #cbd5e1) */
  --border:      #CDD3CE;
  --border-soft: #E3E2DC;

  /* —— 尺度 —— */
  --container: 1200px;
  --density:    80px;        /* 密度 B：标准 80px */
  --gap:        24px;

  /* —— 边角：胶囊 —— */
  --r-sm:   14px;
  --r:      24px;            /* 标准卡片胶囊角 */
  --r-lg:   32px;
  --r-pill: 999px;

  /* —— 阴影 —— */
  --sh-xs:  0 1px 2px rgba(36,28,20,.05);
  --sh-sm:  0 2px 8px rgba(36,28,20,.06);
  --sh-md:  0 6px 20px rgba(36,28,20,.09);
  --sh-lg:  0 18px 48px rgba(36,28,20,.13);
  --sh-glow:0 12px 32px rgba(107,74,47,.22);

  /* —— 动效 —— */
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
  --t: .32s var(--ease);
  --t-slow: .6s var(--ease-out);

  /* 母题图形：垛口单元 48×16 可无缝平铺，褐/金/白三色适配深浅底 */
  --crenel-brown:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 16'%3E%3Cpath d='M0 6H10V2H20V6H30V2H40V6H48V16H0Z' fill='%236B4A2F'/%3E%3C/svg%3E");
  --crenel-gold:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 16'%3E%3Cpath d='M0 6H10V2H20V6H30V2H40V6H48V16H0Z' fill='%23C9A227'/%3E%3C/svg%3E");
  --crenel-white:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 16'%3E%3Cpath d='M0 6H10V2H20V6H30V2H40V6H48V16H0Z' fill='%23FFFFFF'/%3E%3C/svg%3E");
}

/* ========== 基础 ========== */
*,*::before,*::after{box-sizing:border-box}
html{overflow-x:clip;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",
              system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--density) 0;position:relative}
.section--alt{background:var(--bg-alt)}
.section--deep{background:var(--bg-deep)}
.section--tight{padding:44px 0}
.mt-0{margin-top:0}

/* ========== 图形母题：萧关长城垛口 ========== */
/* 垛口条：一条横贯的城墙剪影，顶部规则方齿（图形定义在 :root） */
.rampart{
  display:block;width:100%;height:26px;
  background-image:var(--crenel-brown);
  background-repeat:repeat-x;background-position:left bottom;
  background-size:auto 26px;
}
.rampart--sm{height:16px;background-size:auto 16px}
.rampart--lg{height:40px;background-size:auto 40px}
.rampart--gold{background-image:var(--crenel-gold)}
.rampart--white{background-image:var(--crenel-white)}
.rampart--flip{transform:scaleY(-1)}

/* 母题线条：微型垛口标记 */
.crenel-mark{
  display:inline-block;width:34px;height:12px;flex:0 0 34px;
  background-image:var(--crenel-brown);
  background-repeat:no-repeat;background-size:34px 12px;
}
.crenel-mark--gold{background-image:var(--crenel-gold)}
.crenel-mark--white{background-image:var(--crenel-white)}

/* 装饰父容器统一裁切（§1.8-4） */
.deco{position:absolute;pointer-events:none;overflow:hidden;inset:0}

/* ========== 区块标题：C 大号编号 ========== */
.sec-head{
  display:grid;grid-template-columns:auto 1fr auto;gap:20px;
  align-items:end;margin-bottom:44px;position:relative;z-index:2;
}
.sec-head__num{
  font-size:56px;line-height:.86;font-weight:800;letter-spacing:-.03em;
  color:transparent;
  -webkit-text-stroke:2px var(--brand-soft);
  font-variant-numeric:tabular-nums;user-select:none;
}
.sec-head__main{min-width:0}
.sec-head__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--accent);
  text-transform:uppercase;margin-bottom:8px;
}
.sec-head__title{font-size:clamp(24px,2.6vw,34px);color:var(--ink);letter-spacing:-.02em}
.sec-head__sub{font-size:14.5px;color:var(--text-light);margin-top:10px;max-width:56ch;line-height:1.8}
.sec-head__aside{
  flex:0 1 320px;font-size:14px;color:var(--text-light);line-height:1.9;
  padding-left:24px;border-left:2px solid var(--border);text-align:left;
}
.sec-head--center{grid-template-columns:1fr;justify-items:center;text-align:center}
.sec-head--center .sec-head__aside{border-left:0;padding-left:0;text-align:center;max-width:640px}

/* ========== 按钮 ========== */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  letter-spacing:.01em;overflow:hidden;isolation:isolate;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  will-change:transform;
}
.btn::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.34) 50%,transparent 80%);
  transform:translateX(-130%) skewX(-18deg);transition:transform .7s var(--ease-out);
}
.btn:hover::before{transform:translateX(130%) skewX(-18deg)}
.btn .btn__ico{display:flex;transition:transform var(--t)}
.btn:hover .btn__ico{transform:translateX(5px)}
.btn:active{transform:translateY(1px) scale(.985)}

.btn--primary{background:var(--brand);color:#fff;box-shadow:var(--sh-glow)}
.btn--primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 10px 26px rgba(47,107,79,.26)}
.btn--accent:hover{background:var(--accent-deep);transform:translateY(-2px)}
.btn--ghost{border:1.5px solid var(--border);color:var(--text-soft);background:transparent}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);background:var(--surface)}
.btn--light{background:#fff;color:var(--brand-deep);box-shadow:var(--sh-md)}
.btn--light:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn--sm{padding:10px 20px;font-size:13.5px}
.btn--lg{padding:17px 38px;font-size:16px}

/* ========== 通用卡片（胶囊角） ========== */
.card{
  position:relative;background:var(--surface);border:1px solid var(--border-soft);
  border-radius:var(--r);padding:32px;box-shadow:var(--sh-xs);
  transition:transform var(--t-slow),box-shadow var(--t-slow),border-color var(--t);
  will-change:transform;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--sh-md);border-color:var(--border)}
.card--flat{box-shadow:none;background:var(--bg-alt);border-color:transparent}
.card--flat:hover{background:var(--surface);box-shadow:var(--sh-sm)}

/* 卡片右上垛口角标 */
.card__crenel{
  position:absolute;top:0;right:22px;width:40px;height:12px;
  background-repeat:no-repeat;background-size:40px 12px;opacity:.5;
  transition:opacity var(--t),transform var(--t);
}
.card:hover .card__crenel{opacity:1;transform:translateY(-2px)}

/* 徽章 / 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--brand-tint);color:var(--brand-deep);
}
.tag--accent{background:var(--accent-tint);color:var(--accent-deep)}
.tag--gold{background:rgba(201,162,39,.14);color:#8A6F10}
.tag--line{background:transparent;border:1px solid var(--border);color:var(--text-light)}

/* ========== 滚动入场 ========== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.reveal.is-in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}
.reveal[data-d="5"]{transition-delay:.40s}
.reveal[data-d="6"]{transition-delay:.48s}

/* 文字按行浮现（clip 遮罩） */
.line-mask{display:block;overflow:hidden}
.line-mask>span{display:block;transform:translateY(105%);transition:transform .85s var(--ease-out)}
.line-mask.is-in>span{transform:none}
.line-mask[data-d="1"]>span{transition-delay:.09s}
.line-mask[data-d="2"]>span{transition-delay:.18s}
.line-mask[data-d="3"]>span{transition-delay:.27s}

/* SVG 路径描边动画 */
.draw-stroke{stroke-dasharray:var(--len,1200);stroke-dashoffset:var(--len,1200);
  transition:stroke-dashoffset 1.7s var(--ease-out)}
.draw-stroke.is-in{stroke-dashoffset:0}

/* ========== 顶部滚动进度（垛口形态） ========== */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:100%;z-index:9998;
  background:transparent;pointer-events:none;
}
.scroll-progress__bar{
  height:100%;width:0%;
  background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 60%,var(--gold) 100%);
  box-shadow:0 0 12px rgba(201,162,39,.5);
  transition:width .1s linear;
}

/* ========== 导航（B 透明叠 hero，滚动后变实色） ========== */
.nav-wrap{
  position:absolute;top:0;left:0;right:0;z-index:900;
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
  border-bottom:1px solid transparent;
}
.nav-wrap.is-solid{
  position:fixed;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(14px);-webkit-backdrop-filter:saturate(150%) blur(14px);
  box-shadow:var(--sh-sm);border-bottom-color:var(--border-soft);
  animation:navDrop .4s var(--ease-out);
}
@keyframes navDrop{from{transform:translateY(-100%)}to{transform:none}}

.nav{display:flex;align-items:center;justify-content:space-between;height:78px;gap:8px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;min-width:0}
.brand__mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-deep) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
  font-size:19px;font-weight:800;position:relative;overflow:hidden;
}
.brand__mark::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:7px;
  background-repeat:repeat-x;background-size:auto 7px;opacity:.85;
}
.brand__txt{min-width:0}
.brand__name{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;color:var(--ink)}
.brand__sub{font-size:10.5px;letter-spacing:.26em;color:var(--text-light);
  text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.nav__menu{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav__item{position:relative}
.nav__link{
  display:flex;align-items:center;gap:6px;padding:10px 15px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-soft);white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.nav__link:hover,.nav__item.is-open>.nav__link,.nav__item.is-active>.nav__link{color:var(--brand);background:var(--brand-tint)}
.nav__caret{display:flex;transition:transform var(--t)}
.nav__item.is-open .nav__caret{transform:rotate(180deg)}

/* 透明态（叠在 hero 上）下的浅色导航 */
.nav-wrap:not(.is-solid) .nav__link{color:rgba(255,255,255,.88)}
.nav-wrap:not(.is-solid) .nav__link:hover,
.nav-wrap:not(.is-solid) .nav__item.is-open>.nav__link,
.nav-wrap:not(.is-solid) .nav__item.is-active>.nav__link{color:#fff;background:rgba(255,255,255,.14)}
.nav-wrap:not(.is-solid) .brand__name{color:#fff}
.nav-wrap:not(.is-solid) .brand__sub{color:rgba(255,255,255,.7)}
.nav-wrap:not(.is-solid) .brand__mark{background:rgba(255,255,255,.16);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.3)}
.nav-wrap:not(.is-solid) .nav__cta{border-color:rgba(255,255,255,.5);color:#fff}
.nav-wrap:not(.is-solid) .nav__cta:hover{background:#fff;color:var(--brand-deep)}
.nav-wrap:not(.is-solid) .burger span{background:#fff}

.nav__panel{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%,-8px);
  min-width:210px;padding:10px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--border-soft);box-shadow:var(--sh-lg);
  opacity:0;visibility:hidden;pointer-events:none;z-index:950;
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
}
.nav__item:hover>.nav__panel,.nav__item.is-open>.nav__panel{
  opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);
}
.nav__panel a{
  display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--r-sm);
  font-size:14px;color:var(--text-soft);transition:background var(--t),color var(--t),padding var(--t);
}
.nav__panel a:hover{background:var(--brand-tint);color:var(--brand-deep);padding-left:19px}
.nav__panel svg{flex:0 0 16px;color:var(--accent)}

.nav__cta{flex:0 0 auto}
.nav__cta .btn{padding:11px 13px;font-size:13.5px}
.nav__cta--mob{display:none}

.burger{display:none;width:42px;height:42px;border-radius:12px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;flex:0 0 42px}
.burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform var(--t),opacity var(--t)}
.burger.is-on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-on span:nth-child(2){opacity:0}
.burger.is-on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:9997;background:rgba(36,28,20,.5);
  opacity:0;visibility:hidden;overflow:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer.is-on{opacity:1;visibility:visible}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(84vw,340px);
  background:var(--surface);padding:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .38s var(--ease-out);
  scrollbar-width:none;-ms-overflow-style:none;
}
.drawer__panel::-webkit-scrollbar{display:none}
.drawer.is-on .drawer__panel{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer__close{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;
  justify-content:center;background:var(--bg-alt);color:var(--text-soft)}
.drawer__item{border-bottom:1px solid var(--border-soft)}
.drawer__item>a{display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:15.5px;font-weight:500;color:var(--text-soft)}
.drawer__sub{padding:0 0 10px 12px;display:none}
.drawer__sub.is-on{display:block}
.drawer__sub a{display:block;padding:9px 4px;font-size:14px;color:var(--text-light)}
.drawer__sub a:hover{color:var(--brand)}

/* ========== Hero（D 毛玻璃浮层卡片） ========== */
.hero{position:relative;overflow:hidden;background:var(--accent-deep);color:#fff;isolation:isolate}
.hero__bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero__grad{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 520px at 82% 12%,rgba(201,162,39,.30),transparent 62%),
    radial-gradient(760px 460px at 10% 82%,rgba(107,74,47,.35),transparent 64%),
    linear-gradient(150deg,#2F6B4F 0%,#23513C 46%,#152A20 100%);
}
/* 视差山脊层 */
.hero__ridge{position:absolute;left:-4%;right:-4%;bottom:0;width:108%;will-change:transform}
.hero__ridge--back{bottom:0;opacity:.30}
.hero__ridge--mid{bottom:0;opacity:.48}
.hero__ridge--front{bottom:0;opacity:.72}
/* 长城垛口剪影 */
.hero__wall{position:absolute;left:0;right:0;bottom:0;width:100%;height:88px;z-index:2;opacity:.92}
.hero__stars{position:absolute;inset:0;opacity:.5}
.hero__star{position:absolute;width:2px;height:2px;border-radius:50%;background:#fff;
  animation:starTwinkle 3.4s ease-in-out infinite}

.hero .container{position:relative;z-index:5}
.hero__grid{
  display:grid;grid-template-columns:1.06fr .94fr;gap:40px;align-items:center;
  padding:150px 0 92px;min-height:640px;
}
.hero__glass{
  position:relative;padding:44px 46px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.13);
  backdrop-filter:blur(22px) saturate(150%);-webkit-backdrop-filter:blur(22px) saturate(150%);
  border:1px solid rgba(255,255,255,.28);
  box-shadow:0 26px 64px rgba(0,0,0,.28),inset 0 1px 0 rgba(255,255,255,.28);
  overflow:hidden;
}
.hero__glass::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  animation:glassSweep 6s var(--ease) infinite;
}
.hero__badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);
  font-size:13px;font-weight:600;letter-spacing:.03em;color:#fff;margin-bottom:22px;
}
.hero__title{font-size:clamp(31px,4vw,50px);line-height:1.24;color:#fff;letter-spacing:-.025em;margin-bottom:18px}
.hero__title em{font-style:normal;color:var(--gold-soft)}
.hero__desc{font-size:15.5px;line-height:1.95;color:rgba(255,255,255,.86);margin-bottom:28px;max-width:52ch}
.hero__btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero__notes{display:flex;gap:22px;flex-wrap:wrap;padding-top:22px;border-top:1px solid rgba(255,255,255,.2)}
.hero__notes span{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.82)}
.hero__notes svg{color:var(--gold-soft);flex:0 0 16px}

/* Hero 右侧：数据浮层堆 */
.hero__stack{display:flex;flex-direction:column;gap:16px}
.hero__chip{
  display:flex;align-items:center;gap:16px;padding:20px 24px;border-radius:var(--r);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform var(--t-slow),background var(--t),border-color var(--t);
  animation:chipFloat 7s ease-in-out infinite;
}
.hero__chip:nth-child(2){animation-delay:-2.3s}
.hero__chip:nth-child(3){animation-delay:-4.6s}
.hero__chip:hover{transform:translateX(8px);background:rgba(255,255,255,.17);border-color:rgba(201,162,39,.5)}
.hero__chip-ico{
  width:46px;height:46px;flex:0 0 46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(201,162,39,.18);color:var(--gold-soft);border:1px solid rgba(201,162,39,.3);
}
.hero__chip-t{font-size:15.5px;font-weight:700;color:#fff}
.hero__chip-d{font-size:13px;color:rgba(255,255,255,.76);margin-top:2px}

.hero__ctrl{
  position:absolute;left:0;right:0;bottom:34px;z-index:6;
  display:flex;align-items:center;justify-content:center;gap:16px;
}
.hero__arrow{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;
  transition:background var(--t),transform var(--t);
}
.hero__arrow:hover{background:rgba(255,255,255,.26);transform:scale(1.08)}
.hero__dots{display:flex;gap:8px}
.hero__dot{
  width:9px;height:9px;padding:0;border-radius:var(--r-pill);background:rgba(255,255,255,.36);
  transition:width var(--t),background var(--t);
}
.hero__dot.is-on{width:26px;background:var(--gold)}

/* no-js 降级：只显示第一屏，其余隐藏（避免多屏叠字） */
.no-js .hero__slide{opacity:1 !important;visibility:visible !important}
.no-js .hero__slide:not(:first-child){display:none}
.no-js .hero__ctrl{display:none}
.hero__slides{display:grid}
.hero__slide{grid-area:1/1;opacity:0;visibility:hidden;transition:opacity .8s var(--ease),visibility .8s var(--ease)}
.hero__slide.is-on{opacity:1;visibility:visible}
.hero__slide__in{display:flex;flex-direction:column}

/* ========== 信任条（A 4 数字横条） ========== */
.trust{position:relative;background:var(--brand);color:#fff;overflow:hidden}
.trust::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--gold);opacity:.6}
.trust__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;z-index:2}
.trust__cell{
  padding:34px 26px;text-align:center;position:relative;
  border-right:1px solid rgba(255,255,255,.18);
  transition:background var(--t);
}
.trust__cell:last-child{border-right:0}
.trust__cell:hover{background:rgba(255,255,255,.07)}
.trust__ico{
  width:44px;height:44px;margin:0 auto 12px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(201,162,39,.18);color:var(--gold-soft);
  transition:transform var(--t);
}
.trust__cell:hover .trust__ico{transform:translateY(-4px) scale(1.08)}
.stat-num{
  display:block;font-size:40px;font-weight:800;line-height:1.1;letter-spacing:-.01em;
  color:#fff !important;text-shadow:0 1px 0 rgba(0,0,0,.25);font-variant-numeric:tabular-nums;
}
.trust__label{display:block;font-size:13.5px;color:rgba(255,255,255,.8);margin-top:6px;letter-spacing:.06em}

/* ========== 母题叙事带 ========== */
.story{position:relative;background:var(--bg-deep);overflow:hidden}
.story__grid{display:grid;grid-template-columns:auto 1fr auto;gap:36px;align-items:center;position:relative;z-index:2}
.story__mark{
  width:88px;height:88px;flex:0 0 88px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--border-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  box-shadow:var(--sh-sm);
}
.story__mark svg{width:52px;height:52px}
.story__body{min-width:0}
.story__q{font-size:clamp(19px,2.2vw,26px);font-weight:700;color:var(--ink);line-height:1.6;letter-spacing:-.01em}
.story__q em{font-style:normal;color:var(--accent)}
.story__d{font-size:14.5px;color:var(--text-light);margin-top:10px;line-height:1.9}
.story__side{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;max-width:260px}

/* ========== 核心业务卡（F 交错浮层） ========== */
.biz{position:relative}
.biz__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);align-items:start}
.biz__cell{
  position:relative;background:var(--surface);border:1px solid var(--border-soft);
  border-radius:var(--r);padding:34px 28px 30px;box-shadow:var(--sh-xs);
  transition:transform var(--t-slow),box-shadow var(--t-slow),border-color var(--t);
  transform:translateY(var(--stagger,0px));will-change:transform;overflow:hidden;
}
.biz__cell:nth-child(even){--stagger:26px}
.biz__cell:hover{transform:translateY(calc(var(--stagger,0px) - 10px));box-shadow:var(--sh-md);border-color:var(--border)}
.biz__num{
  position:absolute;top:14px;right:22px;font-size:60px;font-weight:800;line-height:1;
  color:var(--brand);opacity:.07;letter-spacing:-.04em;user-select:none;
  transition:opacity var(--t),transform var(--t-slow);
}
.biz__cell:hover .biz__num{opacity:.14;transform:translateY(-4px)}
.biz__ico{
  width:56px;height:56px;border-radius:17px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-tint);color:var(--brand);margin-bottom:20px;
  transition:transform var(--t-slow),background var(--t),color var(--t);
}
.biz__cell:hover .biz__ico{transform:scale(1.1) rotate(-6deg);background:var(--brand);color:#fff}
.biz__t{font-size:18.5px;color:var(--ink);margin-bottom:10px}
.biz__d{font-size:13.5px;color:var(--text-light);line-height:1.85;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.biz__chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px}
.biz__chip{
  font-size:12px;padding:4px 11px;border-radius:var(--r-pill);
  background:var(--bg-alt);color:var(--text-light);
  transition:background var(--t),color var(--t);
}
.biz__cell:hover .biz__chip{background:var(--accent-tint);color:var(--accent-deep)}
.biz__more{
  display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--accent);
}
.biz__more svg{transition:transform var(--t)}
.biz__cell:hover .biz__more svg{transform:translateX(5px)}
.biz__bar{
  position:absolute;left:0;bottom:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--gold));
  transition:width .5s var(--ease-out);
}
.biz__cell:hover .biz__bar{width:100%}

/* ========== 能力矩阵（图形化：环形进度） ========== */
.ability{position:relative;background:var(--bg-alt);overflow:hidden}
.ability__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);position:relative;z-index:2}
.ability__cell{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r);
  padding:30px 24px;text-align:center;box-shadow:var(--sh-xs);
  transition:transform var(--t-slow),box-shadow var(--t-slow);
}
.ability__cell:hover{transform:translateY(-8px);box-shadow:var(--sh-md)}
.ring{position:relative;width:118px;height:118px;margin:0 auto 18px}
.ring svg{width:118px;height:118px;transform:rotate(-90deg)}
.ring__bg{fill:none;stroke:var(--bg-deep);stroke-width:9}
.ring__fg{
  fill:none;stroke:url(#ringGrad);stroke-width:9;stroke-linecap:round;
  stroke-dasharray:var(--circ,326.7);stroke-dashoffset:var(--circ,326.7);
  transition:stroke-dashoffset 1.8s var(--ease-out);
}
.ring.is-in .ring__fg{stroke-dashoffset:var(--off,80)}
.ring__val{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.ring__num{font-size:25px;font-weight:800;color:var(--brand);line-height:1;font-variant-numeric:tabular-nums}
.ring__pct{font-size:11.5px;color:var(--text-light);margin-top:3px;letter-spacing:.06em}
.ability__t{font-size:16px;color:var(--ink);margin-bottom:7px}
.ability__d{font-size:13px;color:var(--text-light);line-height:1.8}

/* ========== 服务流程（B 竖排时间线） ========== */
.proc{position:relative}
.proc__list{position:relative;max-width:820px;margin:0 auto;padding-left:0}
.proc__list::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--accent),var(--gold));opacity:.28;
}
.proc__item{position:relative;display:grid;grid-template-columns:48px 1fr;gap:22px;padding-bottom:34px}
.proc__item:last-child{padding-bottom:0}
.proc__node{
  position:relative;width:48px;height:48px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:var(--brand);z-index:2;
  transition:transform var(--t-slow),background var(--t),color var(--t),box-shadow var(--t);
}
.proc__node::after{
  content:"";position:absolute;inset:-6px;border-radius:50%;
  border:2px solid var(--gold);opacity:0;animation:dotPulse 2.8s var(--ease) infinite;
}
.proc__item:nth-child(2) .proc__node::after{animation-delay:.7s}
.proc__item:nth-child(3) .proc__node::after{animation-delay:1.4s}
.proc__item:nth-child(4) .proc__node::after{animation-delay:2.1s}
.proc__item:hover .proc__node{transform:scale(1.14);background:var(--brand);color:#fff;box-shadow:var(--sh-glow)}
.proc__item:hover .proc__node::after{animation-play-state:paused;opacity:0}
.proc__body{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r);
  padding:24px 28px;box-shadow:var(--sh-xs);
  transition:transform var(--t-slow),box-shadow var(--t-slow),border-color var(--t);
}
.proc__item:hover .proc__body{transform:translateX(6px);box-shadow:var(--sh-sm);border-color:var(--border)}
.proc__t{font-size:17.5px;color:var(--ink);margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.proc__d{font-size:13.5px;color:var(--text-light);line-height:1.9}
.proc__meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}

/* ========== 案例区 ========== */
.case__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.case__card{
  position:relative;background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r);
  overflow:hidden;box-shadow:var(--sh-xs);
  transition:transform var(--t-slow),box-shadow var(--t-slow);
}
.case__card:hover{transform:translateY(-8px);box-shadow:var(--sh-md)}
.case__pic{display:block;position:relative;height:186px;overflow:hidden;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-soft) 58%,var(--accent) 150%)}
.case__pic svg{position:absolute;left:0;bottom:0;width:100%;height:76px;opacity:.5;
  transition:transform .8s var(--ease-out)}
.case__card:hover .case__pic svg{transform:translateY(-6px) scale(1.04)}
.case__pic::after{content:"";position:absolute;inset:0;
  background:radial-gradient(320px 170px at 74% 18%,rgba(201,162,39,.4),transparent 70%)}
.case__tag{position:absolute;left:16px;top:16px;z-index:3;
  background:rgba(255,255,255,.92);color:var(--brand-deep);
  padding:5px 13px;border-radius:var(--r-pill);font-size:12px;font-weight:600}
.case__body{padding:24px}
.case__client{font-size:12px;color:var(--accent);font-weight:600;letter-spacing:.05em;margin-bottom:7px}
.case__t{font-size:17px;color:var(--ink);margin-bottom:9px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case__d{font-size:13.5px;color:var(--text-light);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case__res{display:flex;gap:18px;margin-top:18px;padding-top:16px;border-top:1px solid var(--border-soft)}
.case__res div{min-width:0}
.case__res b{display:block;font-size:19px;font-weight:800;color:var(--brand);line-height:1.2}
.case__res span{font-size:11.5px;color:var(--text-light);letter-spacing:.04em}

/* ========== 资讯（B 左大图右 2 列列表） ========== */
.news__wrap{display:grid;grid-template-columns:1.02fr 1.18fr;gap:28px;align-items:start}
.news__lead{
  position:relative;border-radius:var(--r);overflow:hidden;background:var(--brand-deep);
  min-height:430px;display:flex;flex-direction:column;box-shadow:var(--sh-sm);
  transition:transform var(--t-slow),box-shadow var(--t-slow);
}
.news__lead:hover{transform:translateY(-6px);box-shadow:var(--sh-md)}
.news__lead-pic{position:relative;height:216px;flex:0 0 216px;overflow:hidden;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-soft) 62%,var(--accent) 150%)}
.news__lead-pic svg{position:absolute;left:0;bottom:0;width:100%;height:84px;opacity:.55}
.news__lead-pic::after{content:"";position:absolute;inset:0;
  background:radial-gradient(360px 190px at 72% 22%,rgba(201,162,39,.42),transparent 70%)}
.news__lead-body{padding:28px;flex:1;display:flex;flex-direction:column;color:#fff}
.news__lead-tag{align-self:flex-start;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);color:#fff;
  padding:5px 14px;border-radius:var(--r-pill);font-size:12px;font-weight:600;margin-bottom:14px}
.news__lead-t{font-size:21px;line-height:1.5;color:#fff;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news__lead-d{font-size:13.5px;color:rgba(255,255,255,.8);line-height:1.9;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news__lead-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:14px;
  font-size:12.5px;color:rgba(255,255,255,.7)}

.news__list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.news__item{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border-soft);border-radius:var(--r);padding:22px;
  box-shadow:var(--sh-xs);
  transition:transform var(--t-slow),box-shadow var(--t-slow),border-color var(--t);
}
.news__item:hover{transform:translateY(-5px);box-shadow:var(--sh-sm);border-color:var(--border)}
.news__item-t{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.62;margin-bottom:9px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:50px}
.news__item-d{font-size:13px;color:var(--text-light);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:47px}
.news__item-meta{margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:10px;
  font-size:12px;color:var(--gray);border-top:1px solid var(--border-soft)}
.news__item-cat{color:var(--accent);font-weight:600}

/* ========== 地域服务 ========== */
.region{position:relative;background:var(--bg-deep);overflow:hidden}
.region__grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;position:relative;z-index:2}
.region__map{position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);border:1px solid var(--border-soft);padding:26px;box-shadow:var(--sh-sm)}
.region__list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.region__item{
  display:flex;align-items:center;gap:11px;padding:13px 16px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--border-soft);font-size:14px;color:var(--text-soft);
  transition:background var(--t),color var(--t),transform var(--t),border-color var(--t);
}
.region__item:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateX(5px)}
.region__item svg{flex:0 0 15px;color:var(--accent);transition:color var(--t)}
.region__item:hover svg{color:var(--gold-soft)}
.region__aside-title{font-size:22px;color:var(--ink);margin-bottom:14px}
.region__aside-d{font-size:14.5px;color:var(--text-light);line-height:1.95;margin-bottom:22px}

/* ========== CTA（B 左右分栏） ========== */
.cta{position:relative;background:var(--brand-deep);color:#fff;overflow:hidden}
.cta__wall{position:absolute;left:0;right:0;top:0;width:100%;height:56px;opacity:.28;z-index:1}
.cta__in{
  position:relative;z-index:3;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;
}
.cta__title{font-size:clamp(24px,2.9vw,36px);color:#fff;line-height:1.34;letter-spacing:-.02em}
.cta__desc{font-size:14.5px;color:rgba(255,255,255,.82);margin-top:14px;line-height:1.9;max-width:60ch}
.cta__side{display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.cta__note{font-size:12.5px;color:rgba(255,255,255,.66);text-align:right}
.cta__bg{position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(700px 400px at 88% 20%,rgba(201,162,39,.20),transparent 64%),
    radial-gradient(600px 380px at 8% 90%,rgba(47,107,79,.28),transparent 66%);
  animation:ctaBreathe 15s ease-in-out infinite alternate}

/* 通用 CTA 条（浅底） */
.cta-band{background:var(--bg-alt);border-top:1px solid var(--border-soft)}
.cta-band__in{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:32px 36px;background:var(--surface);border-radius:var(--r);box-shadow:var(--sh-xs)}
.cta-band__t{font-size:20px;font-weight:700;color:var(--ink)}
.cta-band__d{font-size:13.5px;color:var(--text-light);margin-top:5px}

/* ========== 通栏页头 ========== */
.page-head{position:relative;background:var(--brand-deep);color:#fff;overflow:hidden;padding:70px 0 76px}
.page-head__bg{position:absolute;inset:0;overflow:hidden}
.page-head__grad{position:absolute;inset:0;
  background:
    radial-gradient(680px 340px at 84% 8%,rgba(201,162,39,.24),transparent 62%),
    linear-gradient(140deg,#4A3120 0%,#3A2A1E 60%,#2A3A2C 100%)}
.page-head__ridge{position:absolute;left:-4%;right:-4%;bottom:0;width:108%;opacity:.5}
.page-head .container{position:relative;z-index:3}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(255,255,255,.75);
  margin-bottom:16px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.9)}
.crumb a:hover{color:var(--gold-soft)}
.crumb svg{opacity:.6}
.crumb span{color:rgba(255,255,255,.6)}
.page-head__title{font-size:clamp(25px,3.2vw,38px);color:#fff;letter-spacing:-.02em}
.page-head__desc{font-size:14.5px;color:rgba(255,255,255,.8);margin-top:12px;line-height:1.9;max-width:64ch}
.page-head__meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:20px;
  font-size:13px;color:rgba(255,255,255,.72)}
.page-head__meta span{display:flex;align-items:center;gap:7px}

/* ========== 内容布局 ========== */
.main-grid{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start;padding:56px 0 80px}
.main-body{min-width:0}

/* 文章正文 */
.detail__content{font-size:15.5px;line-height:2;color:var(--text-soft);overflow-wrap:break-word}
.detail__content h2{font-size:22px;color:var(--ink);margin:38px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand)}
.detail__content h3{font-size:18px;color:var(--ink);margin:30px 0 12px}
.detail__content p{margin-bottom:18px}
.detail__content img{border-radius:var(--r-sm);margin:22px 0;max-width:100%;height:auto}
.detail__content ul,.detail__content ol{margin:0 0 20px;padding-left:24px}
.detail__content ul{list-style:disc}
.detail__content ol{list-style:decimal}
.detail__content li{margin-bottom:9px}
.detail__content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.detail__content blockquote{
  margin:24px 0;padding:18px 24px;background:var(--bg-alt);
  border-left:4px solid var(--gold);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-soft)}
.detail__content table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:22px 0}
.detail__content th,.detail__content td{border:1px solid var(--border);padding:11px 15px;text-align:left}
.detail__content th{background:var(--bg-alt);font-weight:600;color:var(--ink)}
.detail__content pre{overflow-x:auto;background:#2A2620;color:#E8E2D8;padding:18px 22px;
  border-radius:var(--r-sm);font-size:13.5px;line-height:1.8;margin:22px 0}
.detail__content code{background:var(--bg-deep);padding:2px 7px;border-radius:5px;font-size:13.5px}
.detail__content pre code{background:transparent;padding:0}

.page-content{font-size:15.5px;line-height:2;color:var(--text-soft);overflow-wrap:break-word}
.page-content h2{font-size:22px;color:var(--ink);margin:34px 0 16px;padding-left:14px;border-left:4px solid var(--brand)}
.page-content h3{font-size:18px;color:var(--ink);margin:28px 0 12px}
.page-content p{margin-bottom:18px}
.page-content img{max-width:100%;height:auto;border-radius:var(--r-sm)}
.page-content table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:20px 0}
.page-content th,.page-content td{border:1px solid var(--border);padding:11px 15px}
.page-content th{background:var(--bg-alt)}
.page-content pre{overflow-x:auto;background:#2A2620;color:#E8E2D8;padding:18px 22px;border-radius:var(--r-sm)}

/* 上下篇 */
.detail__nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:38px 0 0;min-width:0}
.detail__nav-cell{
  display:block;min-width:0;padding:17px 20px;border:1px solid var(--border);border-radius:var(--r);
  background:var(--surface);transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.detail__nav-cell:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:var(--sh-sm)}
.detail__nav-cell--next{text-align:right}
.detail__nav-k{font-size:12px;color:var(--gray);margin-bottom:7px}
.detail__nav-t{font-size:14px;color:var(--text);font-weight:500;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}

/* 分页 */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:44px}
.pager a,.pager span{
  min-width:40px;height:40px;padding:0 13px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;border:1px solid var(--border);color:var(--text-soft);background:var(--surface);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.pager a:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}
.pager .is-on{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:600}
.pager .is-off{opacity:.45;pointer-events:none}

/* 侧栏 */
.side-panel{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r);
  padding:24px;box-shadow:var(--sh-xs)}
.side-card__t{font-size:15.5px;font-weight:700;color:var(--ink);margin-bottom:16px;
  display:flex;align-items:center;gap:9px}
.side-card__t svg{color:var(--brand);flex:0 0 17px}
.side-nav a{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:var(--r-sm);font-size:14px;color:var(--text-soft);
  transition:background var(--t),color var(--t),padding var(--t)}
.side-nav a:hover{background:var(--brand-tint);color:var(--brand-deep);padding-left:19px}
.side-nav a.is-on{background:var(--brand);color:#fff;font-weight:600}
.side-nav a span{font-size:12px;color:var(--gray)}
.side-nav a.is-on span{color:rgba(255,255,255,.75)}
.side-links a{display:flex;gap:11px;padding:12px 0;border-bottom:1px solid var(--border-soft);
  font-size:13.5px;color:var(--text-soft);line-height:1.65}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--brand)}
.side-links b{display:block;font-weight:500;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-links i{font-style:normal;color:var(--gray);font-size:12px;flex:0 0 auto}
/* 侧栏 CTA 高特异性（§3.4） */
.side-panel .side-cta{
  background:var(--brand-deep);color:#fff;border-color:transparent;text-align:center;padding:28px 24px}
.side-panel .side-cta .side-card__t{color:#fff;justify-content:center}
.side-panel .side-cta .side-card__t svg{color:var(--gold-soft)}
.side-panel .side-cta p{font-size:13.5px;color:rgba(255,255,255,.82);line-height:1.9;margin-bottom:18px}
.side-panel .side-cta .btn{width:100%;background:var(--gold);color:#2A2012}
.side-panel .side-cta .btn:hover{background:#fff;color:var(--brand-deep)}

/* 列表卡网格 */
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.art-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border-soft);border-radius:var(--r);padding:26px;
  box-shadow:var(--sh-xs);transition:transform var(--t-slow),box-shadow var(--t-slow);
}
.art-card:hover{transform:translateY(-6px);box-shadow:var(--sh-sm)}
.art-card__cat{font-size:12px;font-weight:600;color:var(--accent);letter-spacing:.05em;margin-bottom:10px}
.art-card__t{font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:53px}
.art-card__d{font-size:13.5px;color:var(--text-light);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.art-card__meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:12px;
  font-size:12px;color:var(--gray);border-top:1px solid var(--border-soft)}

/* 空状态 */
.empty{text-align:center;padding:80px 24px;background:var(--surface);
  border:1px dashed var(--border);border-radius:var(--r)}
.empty svg{margin:0 auto 20px;color:var(--gray-light)}
.empty__t{font-size:18px;color:var(--ink);margin-bottom:10px}
.empty__d{font-size:14px;color:var(--text-light);margin-bottom:24px}

/* 表单 */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field--full{grid-column:1/-1}
.form-field label{font-size:13.5px;font-weight:600;color:var(--text-soft)}
.form-field label i{color:var(--brand);font-style:normal;margin-left:3px}
.form-input{
  width:100%;padding:13px 16px;border:1.5px solid var(--border);border-radius:var(--r-sm);
  background:var(--surface);font-size:14.5px;color:var(--text);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.form-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(47,107,79,.12)}
.form-input::placeholder{color:var(--gray)}
textarea.form-input{min-height:132px;resize:vertical}
.form-note{font-size:12.5px;color:var(--text-light);line-height:1.8}
.flash{padding:14px 20px;border-radius:var(--r-sm);font-size:14px;margin-bottom:22px;
  display:flex;align-items:center;gap:10px}
.flash--ok{background:var(--accent-tint);color:var(--accent-deep);border:1px solid rgba(47,107,79,.24)}
.flash--err{background:#FDECEA;color:#9A3B2C;border:1px solid rgba(154,59,44,.24)}

/* 信息卡 */
.info-card{display:flex;gap:16px;padding:22px;background:var(--surface);
  border:1px solid var(--border-soft);border-radius:var(--r);transition:transform var(--t),box-shadow var(--t)}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-sm)}
.info-card__ico{width:46px;height:46px;flex:0 0 46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;background:var(--brand-tint);color:var(--brand)}
.info-card__k{font-size:12.5px;color:var(--text-light);letter-spacing:.05em;margin-bottom:5px}
.info-card__v{font-size:15.5px;font-weight:600;color:var(--ink);word-break:break-all;line-height:1.6}

/* 通用网格 */
.g-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.g-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.g-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}

/* 站点地图 */
.sitemap-group{margin-bottom:38px}
.sitemap-group__t{font-size:17px;color:var(--ink);margin-bottom:16px;display:flex;align-items:center;gap:10px}
.sitemap-group__t svg{color:var(--brand);flex:0 0 18px}
.sitemap-links{display:flex;flex-wrap:wrap;gap:10px}
.sitemap-links a{padding:9px 18px;border-radius:var(--r-pill);background:var(--surface);
  border:1px solid var(--border-soft);font-size:13.5px;color:var(--text-soft);
  transition:background var(--t),color var(--t),transform var(--t),border-color var(--t)}
.sitemap-links a:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}

/* 404 */
.err{text-align:center;padding:110px 24px}
.err__code{font-size:clamp(80px,13vw,150px);font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:3px var(--brand-soft);letter-spacing:-.03em}
.err__t{font-size:26px;color:var(--ink);margin:18px 0 12px}
.err__d{font-size:15px;color:var(--text-light);margin-bottom:30px}

/* ========== 页脚（C 深色通栏） ========== */
.site-footer{position:relative;background:var(--brand-deep);color:#fff;overflow:hidden}
.site-footer .rampart{position:absolute;left:0;top:0;opacity:.22;height:20px;background-size:auto 20px}
.footer-top{position:relative;z-index:2;padding:60px 0 44px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand__name{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand__d{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.95;margin-bottom:20px;max-width:38ch}
.footer-contact{display:flex;flex-direction:column;gap:11px}
.footer-contact a,.footer-contact span{display:flex;align-items:center;gap:10px;
  font-size:14px;color:rgba(255,255,255,.86)}
.footer-contact a:hover{color:var(--gold-soft)}
.footer-contact svg{flex:0 0 16px;color:var(--gold-soft)}
.footer-col__t{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:13.5px;color:rgba(255,255,255,.74);
  transition:color var(--t),padding-left var(--t);display:inline-block}
.footer-col ul a:hover{color:var(--gold-soft);padding-left:5px}
.footer-bottom{
  position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.16);padding:22px 0;
}
.footer-bottom a{display:inline;margin:0;color:rgba(255,255,255,.76)}
.footer-bottom a:hover{color:var(--gold-soft)}
.footer-bottom .fb-inner{
  display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-start;gap:0;
  font-size:13px;color:rgba(255,255,255,.72)
}
.footer-bottom .fb-sep{display:inline;color:rgba(255,255,255,.34);margin:0 9px}
.footer-bottom .fb-legal,.footer-bottom .fb-beian{white-space:nowrap}
.footer-bottom svg{display:inline-block;vertical-align:-2px}

/* ========== zfkf 悬浮客服（统一标准组件）========== */
.zfkf-float{position:fixed;right:20px;bottom:120px;z-index:9999;display:flex;flex-direction:column;gap:10px}
.zfkf-item{position:relative;width:46px;height:46px;border-radius:50%;display:flex;align-items:center;
  justify-content:center;color:#fff;text-decoration:none;
  box-shadow:0 4px 14px rgba(0,0,0,.18);transition:all .25s;cursor:pointer}
.zfkf-item:hover{transform:scale(1.08);color:#fff}
.zfkf-phone{background:#2563eb}
.zfkf-wechat{background:#07c160}
.zfkf-consult{background:#f59e0b}
.zfkf-top{background:#334155}
.zfkf-tip{position:absolute;right:calc(100% + 12px);top:50%;transform:translateY(-50%);white-space:nowrap;
  background:rgba(0,0,0,.78);color:#fff;font-size:12px;padding:5px 10px;border-radius:6px;
  opacity:0;pointer-events:none;transition:opacity .2s;z-index:10001}
.zfkf-item:hover .zfkf-tip{opacity:1}
.zfkf-wechat-mask{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:10000;
  display:none;align-items:center;justify-content:center}
.zfkf-wechat-mask.zfkf-show{display:flex}
.zfkf-wechat-box{background:#fff;border-radius:12px;padding:24px;text-align:center;
  position:relative;max-width:80vw}
.zfkf-wechat-box img{width:180px;height:180px;object-fit:contain;border:1px solid #eee;border-radius:8px}
.zfkf-wechat-noimg{width:180px;height:80px;display:flex;align-items:center;justify-content:center;
  background:#f6f7f9;border-radius:8px;font-size:16px;color:#07c160;font-weight:600}
.zfkf-wechat-box p{margin:12px 0 0;font-size:14px;color:#333}
.zfkf-wechat-close{position:absolute;top:8px;right:12px;font-size:22px;color:#666;cursor:pointer;line-height:1}
@media (max-width:768px){
  .zfkf-float{right:10px;bottom:100px}
  .zfkf-item{width:42px;height:42px}
  .zfkf-tip{display:none}
}

/* ========== 关键帧 ========== */
@keyframes starTwinkle{0%,100%{opacity:.2;transform:scale(1)}50%{opacity:.95;transform:scale(1.5)}}
@keyframes glassSweep{0%{transform:translateX(-100%)}55%,100%{transform:translateX(100%)}}
@keyframes chipFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes dotPulse{0%{transform:scale(1);opacity:.75}70%{transform:scale(1.5);opacity:0}100%{transform:scale(1.5);opacity:0}}
@keyframes ridgeDrift{0%{transform:translateX(0)}100%{transform:translateX(-42px)}}
@keyframes ctaBreathe{0%{opacity:.85;transform:scale(1)}100%{opacity:1;transform:scale(1.06)}}
@keyframes navDrop{from{transform:translateY(-100%)}to{transform:none}}
@keyframes wallGlow{0%,100%{opacity:.24}50%{opacity:.42}}

.hero__ridge--mid{animation:ridgeDrift 34s linear infinite alternate}
.hero__wall{animation:wallGlow 9s ease-in-out infinite}

/* ========== 响应式 ========== */
@media (max-width:1180px){
  .biz__grid{grid-template-columns:repeat(2,1fr)}
  .biz__cell:nth-child(even){--stagger:18px}
  .ability__grid{grid-template-columns:repeat(2,1fr)}
  .main-grid{grid-template-columns:1fr 280px;gap:28px}
}
@media (max-width:1024px){
  :root{--density:64px;--gap:20px}
  .nav__menu,.nav__cta{display:none}
  .burger{display:flex}
  .nav__cta--mob{display:block;padding:16px 0 6px}
  .nav__cta--mob .btn{width:100%}
  .hero__grid{grid-template-columns:1fr;padding:132px 0 96px}
  .hero__stack{flex-direction:row;flex-wrap:wrap}
  .hero__chip{flex:1 1 260px}
  .news__wrap{grid-template-columns:1fr}
  .news__lead{min-height:0}
  .region__grid{grid-template-columns:1fr;gap:32px}
  .case__grid{grid-template-columns:repeat(2,1fr)}
  .art-grid{grid-template-columns:repeat(2,1fr)}
  .main-grid{grid-template-columns:1fr}
  .side-panel{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .trust__grid{grid-template-columns:repeat(2,1fr)}
  .trust__cell:nth-child(2){border-right:0}
  .trust__cell:nth-child(3),.trust__cell:nth-child(4){border-top:1px solid rgba(255,255,255,.18)}
  .cta__in{grid-template-columns:1fr}
  .cta__side{align-items:flex-start;flex-direction:row;flex-wrap:wrap}
  .sec-head__aside{display:none}
}
@media (max-width:768px){
  :root{--density:56px}
  .container{padding:0 18px}
  .biz__grid,.ability__grid{grid-template-columns:1fr}
  .biz__cell:nth-child(even){--stagger:0px}
  .case__grid,.art-grid,.news__list,.g-2,.g-3,.g-4{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero__glass{padding:30px 24px}
  .hero__ctrl{bottom:20px}
  .detail__nav{grid-template-columns:1fr}
  .detail__nav-cell--next{text-align:left}
  .story__grid{grid-template-columns:1fr;gap:22px;text-align:center}
  .story__mark{margin:0 auto}
  .story__side{justify-content:center;max-width:none}
  .sec-head{grid-template-columns:auto 1fr;gap:14px}
  .sec-head__num{font-size:40px}
  .proc__item{grid-template-columns:40px 1fr;gap:16px}
  .proc__node{width:40px;height:40px;font-size:13.5px}
  .proc__list::before{left:19px}
}
@media (max-width:560px){
  .trust__grid{grid-template-columns:1fr}
  .trust__cell{border-right:0;border-top:1px solid rgba(255,255,255,.18)}
  .trust__cell:first-child{border-top:0}
  .region__list{grid-template-columns:1fr}
}

/* ========== 降级：尊重减弱动效偏好 ========== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important;
  }
  .reveal{opacity:1 !important;transform:none !important}
  .line-mask>span{transform:none !important}
  .draw-stroke{stroke-dashoffset:0 !important}
  .ring__fg{stroke-dashoffset:var(--off,80) !important}
  .hero__slide{transition:none !important}
}

/* ========== 打印 ========== */
@media print{
  .nav-wrap,.zfkf-float,.scroll-progress,.side-panel,.cta,.hero__ctrl{display:none !important}
  body{background:#fff}
}

/* ===== tz-rich-text typography (auto-appended) ===== */
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article)>:first-child{margin-top:0}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article)>:last-child{margin-bottom:0}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) p{margin:0 0 1.05em;line-height:1.9}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h1,:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h2{margin:1.6em 0 .7em;line-height:1.4;font-weight:700}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h1{font-size:1.6em}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h2{font-size:1.4em}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h3{margin:1.4em 0 .6em;font-size:1.2em;line-height:1.45;font-weight:700}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h4{margin:1.2em 0 .5em;font-size:1.08em;font-weight:700}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h5,:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h6{margin:1.1em 0 .5em;font-size:1em;font-weight:700}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) ul,:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) ol{margin:0 0 1.05em;padding-left:1.7em}
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