:root{
  --ink:#1E2420;
  --ink-soft:#39443A;
  --muted:#5E6A5C;
  --primary:#1A3C11;
  --primary-deep:#0F2409;
  --primary-light:#335E1F;
  --primary-pale:#A8D0B8;
  --gold:#E6AF00;
  --gold-light:#F0C644;
  --gold-ink:#8A6200;
  --accent:#E6AF00;
  --accent-ink:#8A6200;
  --accent-soft:#FBF3DC;
  --bg:#FFFFFF;
  --bg-soft:#F4F7F2;
  --line:#E3E8E0;
  --radius:14px;
  --wrap:1160px;
  --nav-h:68px;
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h);-webkit-text-size-adjust:100%}

body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.nav__inner{height:var(--nav-h);display:flex;align-items:center;gap:24px}

.brand{display:grid;place-items:center;flex-shrink:0}
.brand__logo{
  display:block;grid-area:1/1;height:42px;width:auto;
  transition:opacity .3s ease;
}
.brand__logo--dark{opacity:0}

.nav__menu{display:flex;gap:28px;margin-left:auto}
.nav__menu a{
  font-size:15px;color:rgba(255,255,255,.88);position:relative;padding:4px 0;transition:color .35s ease;
}
.nav__menu a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--gold);transition:right .25s ease;
}
.nav__menu a:hover{color:#fff}
.nav__menu a:hover::after{right:0}
.nav__menu a.is-active{color:#fff;font-weight:600}
.nav__menu a.is-active::after{right:0}

.nav__cta{flex-shrink:0}

.burger{
  display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.42);
  background:transparent;border-radius:10px;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;margin-left:auto;
  transition:background .35s ease,border-color .35s ease;
}
.burger span{
  display:block;width:18px;height:2px;background:#fff;
  transition:transform .2s ease,opacity .2s ease,background .35s ease;
}

.nav.is-scrolled{
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(26,60,17,.06);
}
.nav.is-scrolled .brand__logo--dark{opacity:1}
.nav.is-scrolled .brand__logo--light{opacity:0}
.nav.is-scrolled .nav__menu a{color:var(--ink-soft)}
.nav.is-scrolled .nav__menu a:hover{color:var(--primary)}
.nav.is-scrolled .nav__menu a.is-active{color:var(--primary)}
.nav.is-scrolled .burger{background:#fff;border-color:var(--line)}
.nav.is-scrolled .burger span{background:var(--ink)}

.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 32px;border-radius:100px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .3s ease;white-space:nowrap;
}
.btn--primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn--primary:hover{background:var(--primary-deep);border-color:var(--primary-deep)}
.btn--gold{background:var(--gold);color:var(--primary-deep);border-color:var(--gold)}
.btn--gold:hover{background:var(--gold-light);border-color:var(--gold-light)}
.btn__arrow{font-size:17px;line-height:1}
.btn--ghost{background:transparent;color:var(--primary);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--primary);background:var(--bg-soft)}
.hero .btn--ghost{color:#fff;border-color:rgba(255,255,255,.28)}
.hero .btn--ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.55)}
.btn--light{background:#fff;color:var(--primary-deep);border-color:#fff;padding:16px 34px;font-size:16px}
.btn--light:hover{background:var(--gold);border-color:var(--gold);color:var(--primary-deep)}

/* ---------- hero ---------- */
.hero{
  position:relative;display:flex;align-items:center;overflow:hidden;
  min-height:100vh;
  min-height:100dvh;
  background:#1A3C11;color:#fff;
  padding:calc(var(--nav-h) + 72px) 0 88px;
}
.hero__bg{
  position:absolute;inset:0;opacity:.14;
  background-image:radial-gradient(circle at 22% 28%,rgba(230,175,0,.45) 0%,transparent 52%),
                   radial-gradient(circle at 78% 72%,rgba(168,208,184,.35) 0%,transparent 52%);
}
.hero__pattern{
  position:absolute;right:3%;top:50%;transform:translateY(-50%);
  width:min(340px,32vw);opacity:.14;pointer-events:none;
}
.hero__pattern svg{width:100%;height:auto}
.hero .wrap{position:relative;z-index:2}

.hero__inner{max-width:880px;margin:0 auto;text-align:center}
.hero__badge{
  display:inline-flex;align-items:center;padding:8px 18px;
  background:rgba(230,175,0,.12);border:1px solid rgba(230,175,0,.42);border-radius:100px;
  color:#E6AF00;font-size:13px;font-weight:500;letter-spacing:1px;margin-bottom:32px;
}
.hero__title{
  font-size:clamp(32px,5.2vw,60px);font-weight:800;line-height:1.24;letter-spacing:-.5px;
  margin-bottom:26px;
}
.hero__title .hl{color:var(--gold)}
.hero__lead{
  font-size:clamp(15px,1.7vw,19px);line-height:1.85;font-weight:300;
  color:rgba(255,255,255,.76);max-width:680px;margin:0 auto 42px;
}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin-bottom:56px}

.hero__stats{
  display:flex;flex-wrap:wrap;justify-content:center;gap:56px;
  padding-top:34px;border-top:1px solid rgba(255,255,255,.16);
}
.hero__stats li{display:flex;flex-direction:column;align-items:center}
.hero__stats strong{font-size:34px;font-weight:800;color:var(--gold);line-height:1.2}
.hero__stats span{font-size:13px;color:rgba(255,255,255,.62)}

/* ---------- section ---------- */
.section{padding:88px 0}
.section--soft{background:var(--bg-soft)}

.shead{max-width:780px;margin:0 auto 72px;text-align:center}
.shead__num{
  font-size:13px;font-weight:700;letter-spacing:3px;color:var(--accent-ink);
  margin-bottom:12px;font-family:ui-monospace,Menlo,Consolas,monospace;
}
.shead__title{font-size:clamp(24px,3.2vw,34px);font-weight:700;color:var(--primary-deep);margin-bottom:16px;line-height:1.35}
.shead__sub{font-size:16px;color:var(--muted);line-height:1.85}

/* ---------- grid & card ---------- */
.grid{display:grid;gap:24px}
.grid--3{grid-template-columns:repeat(3,1fr)}

.card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--primary)}
.card__num{font-size:13px;font-weight:700;color:var(--accent-ink);letter-spacing:2px;margin-bottom:14px}
.card__title{font-size:19px;font-weight:600;color:var(--primary-deep);margin-bottom:12px}
.card__text{font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;counter-reset:s}
.step{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;position:relative;display:flex;flex-direction:column;
}
.step__head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.step__no{
  width:34px;height:34px;flex-shrink:0;border-radius:50%;
  background:var(--primary);color:#fff;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step__head h3{font-size:19px;font-weight:600;color:var(--primary-deep)}
.step__text{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:16px}
.step__text strong{color:var(--primary);font-weight:600}
.step__list{
  margin:-4px 0 16px;padding:12px 0 4px 0;border-top:1px dashed var(--line);
}
.step__list li{font-size:14px;color:var(--ink-soft);padding:5px 0 5px 18px;position:relative;line-height:1.7}
.step__list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--gold);
}
.step__tag{
  display:inline-block;font-size:12px;color:var(--primary);align-self:flex-start;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:4px 12px;margin-top:auto;
}

/* ---------- products ---------- */
.prod{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 28px;display:flex;flex-direction:column;transition:border-color .2s ease,transform .2s ease;
}
.prod:hover{border-color:var(--primary)}
.prod--hot{border-color:var(--accent-ink);background:var(--accent-soft)}
.prod__label{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--muted);margin-bottom:12px}
.prod--hot .prod__label{color:var(--accent-ink)}
.prod__title{font-size:21px;font-weight:700;color:var(--primary-deep);margin-bottom:14px}
.prod__text{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:20px}
.prod__list{margin-top:auto;border-top:1px solid var(--line);padding-top:16px}
.prod__list li{font-size:14px;color:var(--ink-soft);padding:6px 0 6px 18px;position:relative}
.prod__list li::before{
  content:"";position:absolute;left:0;top:14px;width:6px;height:6px;border-radius:50%;background:var(--gold);
}

/* 三层产品结构 */
.grid--2{grid-template-columns:repeat(2,1fr)}
.tier+.tier,.tier+.tier-row{margin-top:60px;padding-top:52px;border-top:1px dashed var(--line)}
.tier__head{max-width:760px;margin:0 auto 30px;text-align:center}
.tier__no{
  font-size:12px;font-weight:700;letter-spacing:3px;color:var(--accent-ink);margin-bottom:10px;
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.tier__title{
  position:relative;display:inline-block;font-size:clamp(19px,2.2vw,23px);font-weight:700;
  color:var(--primary-deep);padding-bottom:12px;margin-bottom:12px;line-height:1.4;
}
.tier__title::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:44px;height:3px;border-radius:2px;background:var(--gold);
}
.tier__sub{font-size:15px;color:var(--muted);line-height:1.85}

/* LAYER 02 / LAYER 03 并排两列
   .tier 用 display:contents 拆掉包裹层，让「层标题」「产品卡」直接成为网格项，
   这样两层的标题共用第一行、两张卡共用第二行 —— P3 与上方 P1 同列，P4 与 P2 同列，顶边严格对齐。 */
.tier-row{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  grid-template-rows:auto 1fr;gap:24px;align-items:stretch;
}
.tier-row>.tier{display:contents;margin:0;padding:0;border:0}
.tier-row>.tier>.tier__head{order:0;margin:0;max-width:none}
.tier-row>.tier>.prod{order:1;margin-top:0}
.tier-row .prod--wide{padding:30px 26px}

/* 通栏产品卡（外贸营 / WorkBuddy 课） */
.prod--wide{padding:36px 34px}
.prod__badge{
  display:inline-block;vertical-align:middle;margin-left:10px;letter-spacing:0;
  font-size:12px;font-weight:700;color:var(--gold-ink);
  background:var(--accent-soft);border:1px solid rgba(230,175,0,.45);
  border-radius:999px;padding:3px 12px;
}

/* ---------- cases ---------- */
.case{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 32px;margin-bottom:24px;
}
.case:last-child{margin-bottom:0}
.case__head{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.case__no{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--accent-ink);margin-bottom:10px}
.case__title{font-size:clamp(19px,2.2vw,24px);font-weight:700;color:var(--primary-deep);line-height:1.45;margin-bottom:8px}
.case__meta{font-size:13px;color:var(--muted)}

.case__body{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:28px}
.case__block h4{font-size:15px;font-weight:600;color:var(--primary);margin-bottom:14px}
.case__block p{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:10px}
.case__block ul li{font-size:15px;color:var(--muted);line-height:1.8;padding:6px 0 6px 18px;position:relative}
.case__block ul li::before{
  content:"";position:absolute;left:0;top:15px;width:6px;height:6px;border-radius:50%;background:var(--line);
}
.case__block strong{color:var(--ink);font-weight:600}

.case__result{
  display:flex;flex-wrap:wrap;align-items:center;gap:32px;
  background:var(--bg-soft);border-radius:12px;padding:24px 28px;
}
.case__result--multi{gap:48px}
.metric{display:flex;flex-direction:column}
.metric strong{font-size:28px;font-weight:700;color:var(--accent-ink);line-height:1.25}
.metric span{font-size:13px;color:var(--muted)}

.quote{
  flex:1;min-width:260px;font-size:16px;color:var(--ink);line-height:1.8;
  padding-left:18px;border-left:3px solid var(--gold);font-style:italic;
}
.quote cite{display:block;font-style:normal;font-size:13px;color:var(--muted);margin-top:8px}

.case__sub{margin-top:4px}
.subcase{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:24px;
}
.subcase__name{font-size:18px;font-weight:700;color:var(--primary-deep);margin-bottom:4px}
.subcase__type{font-size:13px;color:var(--accent-ink);margin-bottom:12px}
.subcase__text{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:14px}
.subcase__win{font-size:14px;color:var(--ink);font-weight:600;line-height:1.7}
.subcase__badge{
  display:inline-block;margin-top:12px;font-size:13px;font-weight:700;color:#fff;
  background:var(--gold);padding:4px 12px;border-radius:999px;
}

/* ---------- team ---------- */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.member{
  background:var(--bg);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  display:flex;flex-direction:column;
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.member:hover{border-color:var(--primary);box-shadow:0 18px 40px rgba(26,60,17,.10)}
.member__photo{aspect-ratio:1/1;background:#3B3C40;overflow:hidden}
.member__photo img{width:100%;height:100%;object-fit:cover;object-position:center top}
.member__body{padding:28px 26px 26px;display:flex;flex-direction:column;flex:1}
.member__name{font-size:26px;font-weight:800;color:var(--primary-deep);letter-spacing:1px;line-height:1.2;margin-bottom:10px}
.member__role{font-size:14px;color:var(--gold-ink);font-weight:500;margin-bottom:18px}
.member__tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.member__tags li{
  font-size:13px;color:var(--primary);background:#E4F1E6;
  border-radius:999px;padding:6px 14px;line-height:1.4;
}
.member__facts{margin-bottom:24px}
.member__fact{font-size:14px;color:var(--muted);line-height:1.85;margin-bottom:8px}
.member__fact:last-child{margin-bottom:0}
.member__fact strong{color:var(--ink);font-weight:600}
.member__slogan{
  margin-top:auto;background:var(--primary);border-radius:12px;
  padding:17px 20px;text-align:center;color:#fff;font-size:15px;line-height:1.7;font-weight:500;
}
.member__slogan em{color:var(--gold);font-style:normal;font-weight:600}

/* ---------- path ---------- */
.path{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.path li{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;position:relative;
}
.path__no{
  width:34px;height:34px;border-radius:50%;background:var(--gold);color:#fff;
  font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.path li h3{font-size:19px;font-weight:600;color:var(--primary-deep);margin-bottom:10px}
.path li p{font-size:15px;color:var(--muted);line-height:1.8}
.path__free{
  display:inline-block;margin-top:14px;font-size:13px;font-weight:600;color:var(--accent-ink);
  background:var(--accent-soft);padding:3px 12px;border-radius:999px;
}

/* ---------- cta ---------- */
.cta{padding:88px 0;background:var(--bg)}
.cta__card{
  position:relative;overflow:hidden;
  background:linear-gradient(158deg,#26531C 0%,#173A0F 52%,#0F2409 100%);
  border-radius:24px;padding:66px 40px 56px;text-align:center;color:#fff;
  box-shadow:0 24px 60px rgba(15,36,9,.22);
}
.cta__card::before{
  content:"";position:absolute;right:-14%;top:-42%;width:62%;height:130%;
  background:radial-gradient(circle,rgba(230,175,0,.20) 0%,transparent 66%);
  pointer-events:none;
}
.cta__title{
  position:relative;font-size:clamp(26px,3.6vw,42px);font-weight:800;line-height:1.36;margin-bottom:22px;
}
.cta__sub{
  position:relative;font-size:16px;color:rgba(255,255,255,.74);line-height:1.9;
  max-width:640px;margin:0 auto 28px;
}
.cta__free{
  position:relative;display:inline-flex;align-items:center;gap:9px;
  border:1px solid rgba(230,175,0,.55);color:var(--gold);border-radius:999px;
  padding:10px 24px;font-size:14px;margin-bottom:48px;
}
.cta__free::before{content:"✓";font-size:13px;line-height:1}

.contact{
  position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  max-width:980px;margin:0 auto;text-align:left;
}
.contact__item{
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:999px;padding:12px 24px 12px 12px;
  transition:background .25s ease,border-color .25s ease;
}
.contact__item:hover{background:rgba(255,255,255,.13);border-color:rgba(230,175,0,.5)}
.contact__icon{
  width:44px;height:44px;flex-shrink:0;border-radius:50%;
  background:var(--gold);color:#1A3C11;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.contact__text{display:flex;flex-direction:column;min-width:0}
.contact__label{font-size:12px;color:rgba(255,255,255,.58);line-height:1.7}
.contact__value{
  font-size:15px;font-weight:600;color:#fff;line-height:1.5;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
/* 微信号卡：点一下就把号码复制走，省得客户手输错 */
.contact__item--copy{cursor:pointer;-webkit-user-select:none;user-select:none}
.contact__item--copy.is-copied{background:rgba(230,175,0,.16);border-color:var(--gold)}
.contact__item--copy.is-copied .contact__value{color:var(--gold-light)}

/* ---------- footer：品牌列 + 三列导航 + 底栏 ---------- */
.foot{background:var(--primary-deep);color:#fff;border-top:1px solid rgba(255,255,255,.12);padding:76px 0 22px}
/* 列宽比例取自参考站点（1.35 : 1 : 1 : 1.65），无列间距，靠列宽本身留白 */
.foot__grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.65fr;column-gap:0;row-gap:44px}

/* 品牌列 */
.foot__logo{display:block;height:40px;width:auto}
.foot__desc{margin:30px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62)}
.foot__motto{margin:30px 0 0;font-size:14px;font-style:italic;color:rgba(255,255,255,.5);letter-spacing:.4px}

/* 三列导航 */
.foot__title{margin:0 0 22px;font-size:14px;font-weight:600;color:var(--gold);letter-spacing:.5px}
.foot__list{margin:0;padding:0;list-style:none;font-size:13.5px;line-height:1.5}
.foot__list li+li{margin-top:14px}
.foot__list a,.foot__list span{color:rgba(255,255,255,.62);transition:color .25s ease,border-color .25s ease}
.foot__list a:hover{color:#fff}
/* 页尾微信号：点一下复制，和联系区同一套逻辑（main.js 统一绑定 [data-copy]） */
.foot__copylink{cursor:pointer;-webkit-user-select:none;user-select:none;border-bottom:1px dashed rgba(255,255,255,.25)}
.foot__copylink:hover{color:#fff;border-bottom-color:rgba(255,255,255,.6)}
.foot__copylink.is-copied{color:var(--gold-light);border-bottom-color:var(--gold)}

/* 底栏 */
.foot__bottom{
  margin-top:80px;padding-top:34px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 24px;
  font-size:12.5px;color:rgba(255,255,255,.42);
}
.foot__bottom p{margin:0}
/* 特异性要压过上面的 .foot__bottom p{margin:0}，否则推不到右边 */
.foot__bottom .foot__slogan{margin-left:auto}
.foot__beian{flex-basis:100%;font-size:12px;color:rgba(255,255,255,.4)}
.foot__beian a{color:rgba(255,255,255,.4);border-bottom:1px solid rgba(255,255,255,.25)}
.foot__beian a:hover{color:#fff}

/* ---------- 悬停高亮：鼠标碰到的边框 / 方块统一给反馈 ---------- */
.card,.step,.prod,.case,.subcase,.path li,.member{
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease,background-color .25s ease;
}
/* 鼠标碰上就“跳”一下——两段递减的弹跳，模拟物体落地后的余震；只跑一轮就停 */
@keyframes boxBounce{
  0%{transform:translateY(0)}
  18%{transform:translateY(-10px)}
  36%{transform:translateY(0)}
  52%{transform:translateY(-5px)}
  68%{transform:translateY(0)}
  80%{transform:translateY(-2px)}
  92%,100%{transform:translateY(0)}
}
.card:hover,.step:hover,.prod:hover,.case:hover,.subcase:hover,.path li:hover,.member:hover,
.card:focus-within,.step:focus-within,.prod:focus-within,.case:focus-within,.member:focus-within{
  border-color:var(--gold);
  box-shadow:0 16px 36px rgba(26,60,17,.13);
  animation:boxBounce 1.25s cubic-bezier(.42,0,.58,1) 1;
}
.prod--hot:hover,.prod--hot:focus-within{border-color:var(--gold-ink)}

/* 内部小方块：同样高亮，用“环”或描边，不改变布局 */
.case__result,.member__slogan,.contact__item,.cta__free,.hero__badge{
  transition:border-color .25s ease,box-shadow .25s ease,background-color .25s ease;
}
.case__result:hover{box-shadow:0 0 0 1px var(--gold),0 12px 28px rgba(26,60,17,.12)}
.member__slogan:hover{box-shadow:0 0 0 2px var(--gold)}
.cta__card{transition:box-shadow .3s ease}
.cta__card:hover{box-shadow:0 24px 60px rgba(15,36,9,.22),0 0 0 1px rgba(230,175,0,.42)}
.contact__item:hover{background:rgba(255,255,255,.14);border-color:var(--gold);box-shadow:0 10px 24px rgba(0,0,0,.22)}
.cta__free:hover{border-color:var(--gold);background:rgba(230,175,0,.10)}

/* 卡内元素跟着一起亮 */
.member__photo img{transition:transform .5s ease}
.member:hover .member__photo img{transform:scale(1.04)}
.member__tags li{transition:background-color .25s ease,color .25s ease}
.member:hover .member__tags li{background:#D6EBD9;color:var(--primary-deep)}
.step__no,.path__no,.card__num,.prod__badge{transition:background-color .25s ease,color .25s ease,border-color .25s ease}
.step:hover .step__no{background:var(--gold);color:var(--primary-deep)}
.path li:hover .path__no{background:var(--primary)}
.card:hover .card__num,.path li:hover h3,.step:hover .step__head h3,.prod:hover .prod__title{
  color:var(--primary);transition:color .25s ease;
}
.case__title,.subcase__name,.member__name{transition:color .25s ease}
.case:hover .case__title,.subcase:hover .subcase__name,.member:hover .member__name{color:var(--primary)}

/* 键盘可达：同样的高亮 + 明确的焦点圈 */
a:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:8px}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .card:hover,.prod:hover,.member:hover,.step:hover,.case:hover,.subcase:hover,.path li:hover,
  .card:focus-within,.prod:focus-within,.member:focus-within,.step:focus-within,
  .case:focus-within,.subcase:focus-within{transform:none;animation:none}
  .member:hover .member__photo img{transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid--3,.steps,.path{grid-template-columns:repeat(2,1fr)}
  .tier-row .prod--wide{padding:30px 24px}
  .contact{gap:14px}
  .nav__menu{gap:20px}
  .hero{padding:72px 0 64px}
  .section{padding:72px 0}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  /* 页尾：品牌列独占一行，三列导航并排 */
  .foot__grid{grid-template-columns:1fr 1fr;row-gap:40px}
  .foot__brandcol{grid-column:1/-1}
  .foot__desc{margin-top:28px}
  .foot__motto{margin-top:24px}
}

@media (max-width:860px){
  .nav__menu{
    display:none;position:absolute;top:var(--nav-h);left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:8px 24px 20px;
    box-shadow:0 12px 24px rgba(14,35,55,.08);
  }
  .nav__menu.is-open{display:flex}
  .nav__menu a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav__menu a::after{display:none}
  .nav__cta{display:none}
  .burger{display:flex}
  .brand__logo{height:36px}
  .hero__pattern{width:180px;right:-30px;opacity:.10}
  .hero__stats{gap:28px}
  .hero__stats strong{font-size:26px}
  .case__body{grid-template-columns:1fr;gap:24px}
  .case{padding:28px 22px}
  .cta__card{padding:52px 28px 44px;border-radius:20px}
  .cta__free{margin-bottom:36px}
  /* 联系区保持左中右三列 */
  .contact{gap:12px}
  .contact__item{padding:10px 16px 10px 10px;gap:10px}
  .contact__icon{width:38px;height:38px;font-size:15px}
  .contact__value{font-size:14px}
}

@media (max-width:620px){
  .contact{gap:8px}
  .contact__item{padding:8px 10px 8px 8px;gap:8px;border-radius:18px}
  .contact__icon{width:34px;height:34px;font-size:14px}
  .contact__value{font-size:12.5px;white-space:normal;overflow-wrap:anywhere}
}

@media (max-width:430px){
  .contact{grid-template-columns:1fr;max-width:340px}
  .contact__value{font-size:14px}
}

@media (max-width:600px){
  body{font-size:15px}
  .wrap{padding:0 18px}
  .grid--3,.grid--2,.steps,.path{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  /* L2 / L3 回到上下堆叠：拆掉 contents，补回层间分隔线 */
  .tier-row{grid-template-columns:1fr;grid-template-rows:auto;gap:0}
  .tier-row>.tier{display:block}
  .tier-row>.tier>.tier__head{order:0;margin:0 auto 26px;max-width:760px}
  .tier-row>.tier+.tier{margin-top:44px;padding-top:40px;border-top:1px dashed var(--line)}
  .tier+.tier{margin-top:40px;padding-top:36px}
  .tier-row .prod--wide{padding:26px 20px}
  .prod--wide{padding:26px 20px}
  .member__name{font-size:23px}
  .hero{padding:56px 0 48px;min-height:auto}
  .hero__pattern{width:140px;right:-40px;opacity:.09}
  .hero__actions{margin-bottom:40px}
  .hero__actions .btn{width:100%}
  .hero__stats{gap:20px}
  .hero__stats li{flex:1 1 30%}
  .section{padding:56px 0}
  .shead{margin-bottom:36px}
  .cta{padding:56px 0}
  .cta__card{padding:42px 20px 36px;border-radius:18px}
  .case__result{gap:20px;padding:20px 22px}
  .case__result--multi{gap:24px}
  .metric strong{font-size:24px}
  /* 页尾：窄屏收成单列 */
  .foot{padding:56px 0 20px}
  .foot__grid{grid-template-columns:1fr;row-gap:38px}
  .foot__brandcol{grid-column:auto}
  .foot__logo{height:34px}
  .foot__bottom{margin-top:52px;padding-top:26px}
  .foot__bottom .foot__slogan{margin-left:0;flex-basis:100%}
}