/* =====================================================================
   某某菌业 · 食用菌种植基地官网 设计系统
   个性化自然系 · 信任驱动 · B2B 采购决策路径
   ===================================================================== */

/* ---------- 设计令牌 ---------- */
:root{
  /* 主色：深森林 / 菌盖 / 菌丝 */
  --c-bg:        #f7f3ea;   /* 暖菌丝底色 */
  --c-bg-soft:   #efe8d8;
  --c-surface:   #ffffff;
  --c-ink:       #1c2a1d;   /* 深森林墨 */
  --c-ink-2:     #3d4a36;
  --c-ink-3:     #6b7460;
  --c-muted:     #9a9384;
  --c-line:      #e3dac6;

  --c-primary:        #2f5d3a;  /* 深森林绿 */
  --c-primary-dark:   #1d3d27;
  --c-primary-soft:   #e6efe0;
  --c-accent:         #c2703a;  /* 菌盖橙棕 - 个性强调 */
  --c-accent-dark:    #9e5424;
  --c-gold:           #c2a04e;  /* 孢子金 - 数据高亮 */
  --c-moss:           #8ba37a;

  /* 供应状态 */
  --c-good:  #4a8a4e;
  --c-warn:  #d9922f;
  --c-bad:   #c4503f;

  /* 字体 */
  --f-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --f-sans:  "Noto Sans SC", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --f-mono:  "JetBrains Mono", "SF Mono", "Roboto Mono", monospace;

  /* 间距 / 圆角 / 阴影 */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;
  --shadow-sm: 0 2px 10px rgba(28,42,29,.06);
  --shadow-md: 0 10px 34px rgba(28,42,29,.10);
  --shadow-lg: 0 22px 60px rgba(28,42,29,.16);

  --maxw: 1240px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
}

/* ---------- 重置 ---------- */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  font-family:var(--f-sans);
  color:var(--c-ink);
  background:var(--c-bg);
  line-height:1.7;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{ display:block; max-width:100%; height:auto; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }
ul,ol{ list-style:none; }
::selection{ background:var(--c-accent); color:#fff; }

/* ---------- 排版 ---------- */
h1,h2,h3,h4{ font-family:var(--f-serif); font-weight:700; line-height:1.25; color:var(--c-ink); letter-spacing:-.01em; }
h1{ font-size:clamp(2rem,5vw,3.6rem); }
h2{ font-size:clamp(1.6rem,3.6vw,2.6rem); }
h3{ font-size:clamp(1.25rem,2.4vw,1.6rem); }
h4{ font-size:1.1rem; }
p{ color:var(--c-ink-2); }
.lead{ font-size:1.15rem; color:var(--c-ink-2); }
.eyebrow{
  font-family:var(--f-mono); font-size:.78rem; letter-spacing:.22em;
  text-transform:uppercase; color:var(--c-accent); font-weight:600;
  display:inline-flex; align-items:center; gap:.6rem;
}
.eyebrow::before{ content:""; width:26px; height:1px; background:var(--c-accent); display:inline-block; }
.mono{ font-family:var(--f-mono); }

/* ---------- 布局容器 ---------- */
.wrap{ width:100%; max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.section{ padding:clamp(64px,9vw,120px) 0; position:relative; }
.section-sm{ padding:clamp(48px,6vw,80px) 0; }
.section-dark{ background:var(--c-primary-dark); color:#e9e4d6; }
.section-dark h1,.section-dark h2,.section-dark h3{ color:#fff; }
.section-dark p{ color:#c4cdb8; }
.section-soft{ background:var(--c-bg-soft); }
.section-tint{ background:var(--c-primary-soft); }

/* 有机弧形分隔（菌盖曲线） */
.curve-top{ position:relative; }
.curve-top::before{
  content:""; position:absolute; top:-1px; left:0; right:0; height:60px;
  background:var(--c-bg);
  -webkit-mask:radial-gradient(140% 100% at 50% 100%, transparent 49.5%, #000 50%);
          mask:radial-gradient(140% 100% at 50% 100%, transparent 49.5%, #000 50%);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.6rem;
  padding:.95rem 1.8rem; border-radius:999px;
  font-weight:600; font-size:.95rem; letter-spacing:.01em;
  transition:all .35s var(--ease); position:relative; overflow:hidden;
  white-space:nowrap;
}
.btn-primary{ background:var(--c-primary); color:#fff; }
.btn-primary:hover{ background:var(--c-primary-dark); transform:translateY(-2px); box-shadow:0 12px 28px rgba(47,93,58,.32); }
.btn-accent{ background:var(--c-accent); color:#fff; }
.btn-accent:hover{ background:var(--c-accent-dark); transform:translateY(-2px); box-shadow:0 12px 28px rgba(194,112,58,.36); }
.btn-ghost{ background:transparent; color:var(--c-ink); border:1.5px solid var(--c-line); }
.btn-ghost:hover{ border-color:var(--c-primary); color:var(--c-primary); background:var(--c-primary-soft); }
.btn-light{ background:rgba(255,255,255,.14); color:#fff; border:1.5px solid rgba(255,255,255,.4); backdrop-filter:blur(6px); }
.btn-light:hover{ background:#fff; color:var(--c-primary-dark); }
.btn .arrow{ transition:transform .35s var(--ease); }
.btn:hover .arrow{ transform:translateX(4px); }

/* ---------- 顶部导航 ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition:all .4s var(--ease);
  padding:1.1rem 0;
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; gap:2rem; }
.nav.scrolled{
  background:rgba(247,243,234,.92); backdrop-filter:blur(14px);
  box-shadow:0 1px 0 rgba(0,0,0,.06);
  padding:.7rem 0;
}
.brand{ display:flex; align-items:center; gap:.7rem; font-family:var(--f-serif); font-weight:700; font-size:1.18rem; color:#fff; transition:color .4s; }
.nav.scrolled .brand{ color:var(--c-ink); }
.brand-mark{
  width:38px; height:38px; border-radius:50% 50% 50% 50%/60% 60% 40% 40%;
  background:linear-gradient(160deg,var(--c-accent),var(--c-accent-dark));
  display:grid; place-items:center; color:#fff; flex-shrink:0;
  box-shadow:0 6px 16px rgba(194,112,58,.4);
  position:relative;
}
.brand-mark svg{ width:22px; height:22px; }
.brand small{ display:block; font-family:var(--f-mono); font-size:.6rem; letter-spacing:.2em; opacity:.7; font-weight:400; }
.nav-links{ display:flex; align-items:center; gap:.4rem; }
.nav-links a{
  padding:.55rem 1rem; border-radius:999px; font-size:.92rem; font-weight:500;
  color:rgba(255,255,255,.85); transition:all .3s;
}
.nav.scrolled .nav-links a{ color:var(--c-ink-2); }
.nav-links a:hover{ color:#fff; background:rgba(255,255,255,.14); }
.nav.scrolled .nav-links a:hover{ color:var(--c-primary); background:var(--c-primary-soft); }
.nav-links a.active{ color:#fff; background:rgba(255,255,255,.2); }
.nav.scrolled .nav-links a.active{ color:#fff; background:var(--c-primary); }
.nav-cta{ display:flex; align-items:center; gap:.8rem; }
.nav-toggle{ display:none; width:44px; height:44px; border-radius:12px; align-items:center; justify-content:center; color:#fff; }
.nav.scrolled .nav-toggle{ color:var(--c-ink); }
.nav-toggle span{ position:relative; width:22px; height:2px; background:currentColor; border-radius:2px; transition:.3s; }
.nav-toggle span::before,.nav-toggle span::after{ content:""; position:absolute; left:0; width:22px; height:2px; background:currentColor; border-radius:2px; transition:.3s; }
.nav-toggle span::before{ top:-7px; } .nav-toggle span::after{ top:7px; }
.nav-toggle.open span{ background:transparent; }
.nav-toggle.open span::before{ top:0; transform:rotate(45deg); }
.nav-toggle.open span::after{ top:0; transform:rotate(-45deg); }

/* 移动端抽屉 */
.mobile-menu{
  position:fixed; inset:0; z-index:99; background:var(--c-primary-dark);
  transform:translateY(-100%); transition:transform .5s var(--ease-out);
  display:flex; flex-direction:column; padding:6rem 2rem 2rem; visibility:hidden;
}
.mobile-menu.open{ transform:translateY(0); visibility:visible; }
.mobile-menu a{
  font-family:var(--f-serif); font-size:1.8rem; color:#fff; padding:1rem 0;
  border-bottom:1px solid rgba(255,255,255,.12); display:flex; justify-content:space-between; align-items:center;
}
.mobile-menu a .idx{ font-family:var(--f-mono); font-size:.8rem; color:var(--c-gold); opacity:.7; }

/* ---------- Hero ---------- */
.hero{
  position:relative; min-height:100vh; display:flex; align-items:flex-end;
  overflow:hidden; padding-bottom:clamp(3rem,7vw,6rem);
}
.hero-bg{ position:absolute; inset:0; z-index:0; }
.hero-bg img{
  width:100%; height:100%; object-fit:cover;
  animation:kenburns 22s ease-in-out infinite alternate;
}
.hero-bg::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(20,32,22,.55) 0%, rgba(20,32,22,.25) 35%, rgba(20,32,22,.85) 100%);
}
@keyframes kenburns{
  0%{ transform:scale(1) translate(0,0); }
  100%{ transform:scale(1.12) translate(-1.5%, -1%); }
}
.hero-inner{ position:relative; z-index:2; width:100%; }
.hero h1{ color:#fff; max-width:18ch; }
.hero h1 .reveal{ display:inline-block; overflow:hidden; }
.hero h1 .reveal>span{ display:inline-block; transform:translateY(110%); animation:rise .9s var(--ease-out) forwards; }
.hero h1 .reveal:nth-child(2)>span{ animation-delay:.12s; }
.hero h1 .reveal:nth-child(3)>span{ animation-delay:.24s; }
.hero h1 .accent{ color:var(--c-gold); font-style:italic; }
@keyframes rise{ to{ transform:translateY(0); } }
.hero-sub{ color:rgba(255,255,255,.9); font-size:clamp(1rem,1.6vw,1.2rem); max-width:52ch; margin-top:1.2rem; opacity:0; animation:fadeUp .8s var(--ease-out) .5s forwards; }
@keyframes fadeUp{ from{ opacity:0; transform:translateY(20px); } to{ opacity:1; transform:translateY(0); } }
.hero-actions{ display:flex; gap:1rem; flex-wrap:wrap; margin-top:2rem; opacity:0; animation:fadeUp .8s var(--ease-out) .7s forwards; }

/* Hero 底部信任数据条 */
.hero-stats{
  position:relative; z-index:2; margin-top:3.5rem;
  display:grid; grid-template-columns:repeat(4,1fr); gap:0;
  background:rgba(255,255,255,.08); backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.18); border-radius:var(--r-lg);
  overflow:hidden;
}
.hero-stat{ padding:1.4rem 1.6rem; border-right:1px solid rgba(255,255,255,.14); }
.hero-stat:last-child{ border-right:none; }
.hero-stat .num{ font-family:var(--f-mono); font-size:clamp(1.6rem,3vw,2.3rem); font-weight:700; color:#fff; line-height:1; }
.hero-stat .num .unit{ font-size:.9rem; color:var(--c-gold); margin-left:.2rem; }
.hero-stat .lbl{ font-size:.78rem; color:rgba(255,255,255,.7); margin-top:.5rem; letter-spacing:.04em; }
.scroll-hint{ position:absolute; bottom:1.6rem; left:50%; transform:translateX(-50%); z-index:3; color:rgba(255,255,255,.6); font-family:var(--f-mono); font-size:.7rem; letter-spacing:.2em; display:flex; flex-direction:column; align-items:center; gap:.6rem; }
.scroll-hint .line{ width:1px; height:34px; background:linear-gradient(rgba(255,255,255,.6),transparent); animation:scrollLine 1.8s ease-in-out infinite; }
@keyframes scrollLine{ 0%,100%{ transform:scaleY(.4); transform-origin:top; } 50%{ transform:scaleY(1); } }

/* ---------- 实时数据看板 ---------- */
.dashboard{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1.2rem;
}
.gauge{
  background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-lg);
  padding:1.6rem; position:relative; overflow:hidden;
  transition:transform .4s var(--ease), box-shadow .4s var(--ease);
}
.gauge:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); }
.gauge-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:1.2rem; }
.gauge-name{ font-size:.85rem; color:var(--c-ink-3); font-weight:600; }
.gauge-dot{ width:8px; height:8px; border-radius:50%; background:var(--c-good); box-shadow:0 0 0 4px rgba(74,138,78,.18); animation:pulse 2s infinite; }
@keyframes pulse{ 50%{ box-shadow:0 0 0 8px rgba(74,138,78,0); } }
.gauge-val{ font-family:var(--f-mono); font-size:2.2rem; font-weight:700; color:var(--c-ink); line-height:1; }
.gauge-val .u{ font-size:1rem; color:var(--c-ink-3); margin-left:.3rem; font-weight:500; }
.gauge-range{ font-family:var(--f-mono); font-size:.72rem; color:var(--c-muted); margin-top:.4rem; }
.gauge-bar{ height:5px; background:var(--c-bg-soft); border-radius:3px; margin-top:1rem; overflow:hidden; position:relative; }
.gauge-bar i{ position:absolute; top:0; bottom:0; left:0; background:linear-gradient(90deg,var(--c-primary),var(--c-moss)); border-radius:3px; transition:width 1.2s var(--ease-out); }
.gauge.temp .gauge-bar i{ background:linear-gradient(90deg,var(--c-accent),var(--c-gold)); }
.gauge.co2 .gauge-bar i{ background:linear-gradient(90deg,var(--c-moss),var(--c-primary)); }
.gauge.light .gauge-bar i{ background:linear-gradient(90deg,var(--c-gold),#e8c97a); }

/* ---------- 品种轮播 ---------- */
.variety-stage{ position:relative; }
.variety-track{ display:flex; gap:1.5rem; overflow-x:auto; scroll-snap-type:x mandatory; scrollbar-width:none; padding-bottom:.5rem; -webkit-overflow-scrolling:touch; }
.variety-track::-webkit-scrollbar{ display:none; }
.variety-card{
  flex:0 0 340px; scroll-snap-align:start; background:var(--c-surface);
  border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--c-line);
  transition:transform .4s var(--ease), box-shadow .4s var(--ease);
}
.variety-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-lg); }
.variety-img{ position:relative; aspect-ratio:1/1; overflow:hidden; }
.variety-img img{ width:100%; height:100%; object-fit:cover; transition:transform .8s var(--ease); }
.variety-card:hover .variety-img img{ transform:scale(1.08); }
.variety-badge{ position:absolute; top:1rem; left:1rem; background:rgba(255,255,255,.92); backdrop-filter:blur(8px); padding:.4rem .8rem; border-radius:999px; font-family:var(--f-mono); font-size:.72rem; font-weight:600; color:var(--c-primary); }
.variety-body{ padding:1.4rem; }
.variety-body h3{ font-size:1.3rem; margin-bottom:.3rem; }
.variety-body .sci{ font-family:var(--f-mono); font-size:.72rem; color:var(--c-muted); font-style:italic; margin-bottom:1rem; }
.variety-meta{ display:flex; justify-content:space-between; padding-top:1rem; border-top:1px dashed var(--c-line); }
.variety-meta .m .v{ font-family:var(--f-mono); font-size:1.05rem; font-weight:700; color:var(--c-ink); }
.variety-meta .m .k{ font-size:.72rem; color:var(--c-ink-3); }
.variety-meta .m.price .v{ color:var(--c-accent); }

/* ---------- 通用卡片网格 ---------- */
.grid{ display:grid; gap:1.5rem; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
.card{
  background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-lg);
  padding:1.8rem; transition:all .4s var(--ease); position:relative; overflow:hidden;
}
.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:transparent; }
.card-icon{
  width:54px; height:54px; border-radius:14px; display:grid; place-items:center;
  background:var(--c-primary-soft); color:var(--c-primary); margin-bottom:1.2rem;
}
.card-icon.accent{ background:rgba(194,112,58,.12); color:var(--c-accent); }
.card-icon.gold{ background:rgba(194,160,78,.14); color:var(--c-gold); }
.card h3{ font-size:1.2rem; margin-bottom:.5rem; }
.card p{ font-size:.94rem; }

/* 编号步骤（圆圈+数字，用户偏好） */
.steps{ display:grid; gap:1.5rem; counter-reset:step; }
.step{
  background:var(--c-surface); border-radius:var(--r-lg); padding:1.8rem;
  border:1px solid var(--c-line); position:relative; transition:all .4s var(--ease);
}
.step:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); }
.step-num{
  width:46px; height:46px; border-radius:50%; display:grid; place-items:center;
  font-family:var(--f-serif); font-weight:700; font-size:1.2rem; color:#fff;
  margin-bottom:1rem;
}
.step:nth-child(1) .step-num{ background:var(--c-primary); }
.step:nth-child(2) .step-num{ background:var(--c-accent); }
.step:nth-child(3) .step-num{ background:var(--c-gold); }
.step:nth-child(4) .step-num{ background:var(--c-moss); }
.step:nth-child(5) .step-num{ background:var(--c-primary-dark); }

/* ---------- 图文左右区块 ---------- */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,5vw,4.5rem); align-items:center; }
.split.reverse .split-media{ order:2; }
.split-media{ position:relative; border-radius:var(--r-xl); overflow:hidden; }
.split-media img{ width:100%; height:100%; object-fit:cover; }
.split-media .tag{
  position:absolute; bottom:1.2rem; left:1.2rem; background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px); padding:.5rem 1rem; border-radius:999px;
  font-family:var(--f-mono); font-size:.72rem; font-weight:600; color:var(--c-ink);
}
.split-content h2{ margin:.8rem 0 1rem; }
.split-content p{ margin-bottom:1rem; }
.check-list li{ display:flex; gap:.7rem; padding:.45rem 0; font-size:.95rem; color:var(--c-ink-2); }
.check-list li::before{ content:""; width:18px; height:18px; flex-shrink:0; margin-top:.3rem; border-radius:50%; background:var(--c-primary-soft); position:relative; }
.check-list li::after{ content:"✓"; position:absolute; left:5px; color:var(--c-primary); font-weight:700; font-size:.8rem; }

/* ---------- 供应日历 ---------- */
.calendar{ display:grid; grid-template-columns:repeat(12,1fr); gap:6px; }
.cal-cell{ aspect-ratio:1/1.3; border-radius:8px; position:relative; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:.4rem; font-family:var(--f-mono); font-size:.7rem; color:#fff; transition:transform .3s; cursor:pointer; }
.cal-cell:hover{ transform:scale(1.08); z-index:2; }
.cal-cell .m{ font-weight:700; font-size:.85rem; }
.cal-cell .s{ font-size:.6rem; opacity:.85; margin-top:.2rem; }
.cal-good{ background:var(--c-good); }
.cal-warn{ background:var(--c-warn); }
.cal-bad{ background:var(--c-bad); }
.cal-legend{ display:flex; gap:1.5rem; margin-top:1.4rem; flex-wrap:wrap; }
.cal-legend span{ display:flex; align-items:center; gap:.5rem; font-size:.85rem; color:var(--c-ink-3); }
.cal-legend i{ width:14px; height:14px; border-radius:4px; }

/* ---------- 表格 ---------- */
.tbl{ width:100%; border-collapse:collapse; background:var(--c-surface); border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--shadow-sm); }
.tbl th,.tbl td{ padding:1rem 1.2rem; text-align:left; font-size:.92rem; border-bottom:1px solid var(--c-line); }
.tbl th{ background:var(--c-primary-dark); color:#fff; font-weight:600; font-size:.85rem; letter-spacing:.02em; }
.tbl tbody tr{ transition:background .25s; }
.tbl tbody tr:hover{ background:var(--c-primary-soft); }
.tbl td .grade{ display:inline-block; padding:.2rem .6rem; border-radius:6px; font-family:var(--f-mono); font-size:.72rem; font-weight:700; }
.grade-a{ background:rgba(74,138,78,.15); color:var(--c-good); }
.grade-b{ background:rgba(217,146,47,.15); color:var(--c-warn); }
.grade-c{ background:rgba(196,80,63,.15); color:var(--c-bad); }

/* ---------- FAQ 折叠 ---------- */
.faq-item{ border-bottom:1px solid var(--c-line); }
.faq-q{ display:flex; justify-content:space-between; align-items:center; padding:1.4rem 0; cursor:pointer; font-family:var(--f-serif); font-weight:600; font-size:1.05rem; color:var(--c-ink); gap:1rem; }
.faq-q .ico{ flex-shrink:0; width:28px; height:28px; border-radius:50%; border:1.5px solid var(--c-line); display:grid; place-items:center; transition:all .3s; color:var(--c-ink-3); }
.faq-item.open .faq-q .ico{ background:var(--c-accent); border-color:var(--c-accent); color:#fff; transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .4s var(--ease); color:var(--c-ink-2); }
.faq-item.open .faq-a{ max-height:300px; padding-bottom:1.4rem; }

/* ---------- 引用 / 数据墙 ---------- */
.bignum-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1.5rem; }
.bignum{ text-align:left; }
.bignum .n{ font-family:var(--f-mono); font-size:clamp(2.2rem,4.5vw,3.4rem); font-weight:700; color:var(--c-primary); line-height:1; }
.bignum .n .u{ font-size:1.2rem; color:var(--c-accent); }
.bignum .d{ font-size:.9rem; color:var(--c-ink-3); margin-top:.6rem; max-width:20ch; }

/* ---------- 时间轴 ---------- */
.timeline{ position:relative; padding-left:2.5rem; }
.timeline::before{ content:""; position:absolute; left:11px; top:0; bottom:0; width:2px; background:linear-gradient(var(--c-primary),var(--c-accent),var(--c-gold)); }
.tl-item{ position:relative; padding-bottom:2.2rem; }
.tl-item:last-child{ padding-bottom:0; }
.tl-dot{ position:absolute; left:-2.5rem; top:0; width:24px; height:24px; border-radius:50%; background:var(--c-surface); border:3px solid var(--c-primary); display:grid; place-items:center; }
.tl-dot i{ width:8px; height:8px; border-radius:50%; background:var(--c-primary); }
.tl-item:nth-child(2) .tl-dot{ border-color:var(--c-accent); } .tl-item:nth-child(2) .tl-dot i{ background:var(--c-accent); }
.tl-item:nth-child(3) .tl-dot{ border-color:var(--c-gold); } .tl-item:nth-child(3) .tl-dot i{ background:var(--c-gold); }
.tl-item:nth-child(4) .tl-dot{ border-color:var(--c-moss); } .tl-item:nth-child(4) .tl-dot i{ background:var(--c-moss); }
.tl-time{ font-family:var(--f-mono); font-size:.78rem; color:var(--c-accent); font-weight:600; letter-spacing:.05em; }
.tl-item h4{ margin:.3rem 0 .5rem; }

/* ---------- 三栏对比 ---------- */
.compare3{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.2rem; }
.compare-col{ background:var(--c-surface); border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--c-line); transition:all .4s var(--ease); }
.compare-col:hover{ transform:translateY(-6px); box-shadow:var(--shadow-lg); }
.compare-col .ph{ height:160px; position:relative; overflow:hidden; }
.compare-col .ph img{ width:100%; height:100%; object-fit:cover; }
.compare-col .ph .lbl{ position:absolute; top:1rem; left:1rem; background:rgba(255,255,255,.92); padding:.3rem .8rem; border-radius:999px; font-family:var(--f-mono); font-size:.72rem; font-weight:600; }
.compare-col .bd{ padding:1.4rem; }
.compare-col .bd h4{ margin-bottom:.4rem; }
.compare-col .spec{ font-family:var(--f-mono); font-size:.78rem; color:var(--c-accent); margin-bottom:.8rem; }

/* ---------- 页脚 ---------- */
.footer{ background:var(--c-primary-dark); color:#c4cdb8; padding:clamp(3.5rem,6vw,5rem) 0 2rem; }
.footer-top{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr; gap:2.5rem; padding-bottom:2.5rem; border-bottom:1px solid rgba(255,255,255,.12); }
.footer .brand{ color:#fff; margin-bottom:1rem; }
.footer p{ color:#9fa895; font-size:.9rem; }
.footer h5{ color:#fff; font-size:.95rem; margin-bottom:1rem; font-family:var(--f-sans); font-weight:600; }
.footer li{ padding:.35rem 0; font-size:.9rem; color:#a8b09e; transition:color .3s; }
.footer li a:hover{ color:#fff; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:1.5rem; font-size:.82rem; color:#7d8674; flex-wrap:wrap; gap:1rem; }

/* ---------- 滚动揭示 ---------- */
.reveal-up{ opacity:0; transform:translateY(40px); transition:opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.reveal-up.in{ opacity:1; transform:translateY(0); }
.reveal-up.d1{ transition-delay:.1s; } .reveal-up.d2{ transition-delay:.2s; }
.reveal-up.d3{ transition-delay:.3s; } .reveal-up.d4{ transition-delay:.4s; }

/* ---------- 页面通用 Hero（内页） ---------- */
.page-hero{
  position:relative; padding:clamp(8rem,14vw,11rem) 0 clamp(3rem,6vw,5rem);
  background:var(--c-primary-dark); color:#fff; overflow:hidden;
}
.page-hero::before{
  content:""; position:absolute; inset:0; opacity:.22;
  background-image:radial-gradient(circle at 20% 30%, rgba(194,160,78,.5), transparent 40%), radial-gradient(circle at 80% 70%, rgba(194,112,58,.4), transparent 45%);
}
.page-hero .wrap{ position:relative; z-index:2; }
.page-hero h1{ color:#fff; max-width:16ch; }
.page-hero p{ color:#cdd6c2; max-width:54ch; margin-top:1rem; }
.breadcrumb{ font-family:var(--f-mono); font-size:.78rem; color:rgba(255,255,255,.6); margin-bottom:1.5rem; letter-spacing:.05em; }
.breadcrumb a:hover{ color:#fff; }
.breadcrumb span{ margin:0 .5rem; opacity:.5; }

/* ---------- 浮动询盘条（移动端） ---------- */
.float-cta{
  position:fixed; bottom:0; left:0; right:0; z-index:90;
  background:rgba(28,42,29,.96); backdrop-filter:blur(10px);
  padding:.8rem 1rem; display:none; gap:.6rem; border-top:1px solid rgba(255,255,255,.1);
}
.float-cta .btn{ flex:1; justify-content:center; padding:.8rem; }

/* ---------- 装饰元素 ---------- */
.blob{ position:absolute; border-radius:50%; filter:blur(60px); opacity:.4; z-index:0; pointer-events:none; }

/* =====================================================================
   响应式
   ===================================================================== */
@media (max-width:1024px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .bignum-grid{ grid-template-columns:repeat(2,1fr); }
  .footer-top{ grid-template-columns:1fr 1fr; gap:2rem; }
  .hero-stats{ grid-template-columns:repeat(2,1fr); }
  .hero-stat:nth-child(2){ border-right:none; }
  .hero-stat:nth-child(1),.hero-stat:nth-child(2){ border-bottom:1px solid rgba(255,255,255,.14); }
}

@media (max-width:768px){
  :root{ --maxw:100%; }
  body{ font-size:15px; }
  .nav-links,.nav-cta .btn-primary{ display:none; }
  .nav-toggle{ display:flex; }
  .nav-cta .btn-ghost{ display:none; }
  .section{ padding:56px 0; }
  .wrap{ padding:0 20px; }
  .split{ grid-template-columns:1fr; gap:2rem; }
  .split.reverse .split-media{ order:0; }
  .split-media{ aspect-ratio:4/3; }
  .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; }
  .compare3{ grid-template-columns:1fr; }
  .dashboard{ grid-template-columns:repeat(2,1fr); gap:.8rem; }
  .gauge{ padding:1.2rem; }
  .gauge-val{ font-size:1.7rem; }
  .hero{ min-height:92vh; }
  .hero-stats{ grid-template-columns:1fr 1fr; margin-top:2rem; border-radius:var(--r-md); }
  .hero-stat{ padding:1rem 1.1rem; }
  .calendar{ grid-template-columns:repeat(6,1fr); gap:4px; }
  .cal-cell{ aspect-ratio:1/1; }
  .variety-card{ flex:0 0 78vw; }
  .footer-top{ grid-template-columns:1fr; gap:1.8rem; padding-bottom:1.8rem; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
  .float-cta{ display:flex; }
  body{ padding-bottom:64px; }
  .tbl{ display:block; overflow-x:auto; white-space:nowrap; }
  .bignum-grid{ grid-template-columns:1fr 1fr; gap:1rem; }
  .timeline{ padding-left:2rem; }
  .tl-dot{ left:-2rem; }
}

@media (max-width:480px){
  .hero-stats{ grid-template-columns:1fr; }
  .hero-stat{ border-right:none !important; border-bottom:1px solid rgba(255,255,255,.14); }
  .hero-stat:last-child{ border-bottom:none; }
  .bignum-grid{ grid-template-columns:1fr; }
  .calendar{ grid-template-columns:repeat(4,1fr); }
}

/* ---------- 触摸优化 / 减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  .hero-bg img{ animation:none; }
}