/* ==========================================================================
   BOKLAN — Glass Packaging
   Design system v2
   --------------------------------------------------------------------------
   Palette : LIGHT-dominant warm white, with deep bottle-green as the
             brand colour used on type, buttons and the footer only.
             Glass is about transparency and light — the serious suppliers
             (Berlin Packaging, TricorBraun, Gerresheimer, O-I, Vetropack)
             all run light-dominant. Dark is reserved for the footer.
   Type    : Archivo (display) + Inter (UI) — both grotesques, no serif.
             Industrial B2B credibility comes from clarity, not flourish:
             the serious glass suppliers all run clean sans. Noto Sans JP
             covers Japanese, Inter covers Cyrillic.
   ========================================================================== */

:root{
  /* ---- colour ---- */
  --ink:        #12100e;
  --ink-2:      #4a4640;
  --ink-3:      #7d766c;
  --paper:      #fcfbf8;
  --paper-2:    #f5f2ec;
  --paper-3:    #efebe2;   /* deepest light tone, replaces the dark bands */
  --surface:    #ffffff;
  --line:       #e6e0d6;
  --line-2:     #d5cdc0;

  --brand:      #143a31;   /* deep bottle green */
  --brand-2:    #1d5145;
  --brand-soft: #e7efeb;
  --brass:      #a97e40;
  --brass-2:    #c79c5c;
  --brass-soft: #f6efe3;

  --dark:       #12241e;   /* footer only — warmer and lighter than before */
  --dark-2:     #1a2f28;

  /* ---- type ---- */
  --font-sans: 'Inter','Noto Sans JP','Hiragino Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'PingFang SC','Microsoft YaHei',sans-serif;
  --font-display: 'Archivo','Inter','Noto Sans JP','Hiragino Sans',-apple-system,BlinkMacSystemFont,sans-serif;

  /* fluid type scale */
  --t-display: clamp(2.35rem, 1.35rem + 3.7vw, 4.3rem);
  --t-h1:      clamp(1.95rem, 1.25rem + 2.6vw, 3.15rem);
  --t-h2:      clamp(1.55rem, 1.18rem + 1.45vw, 2.25rem);
  --t-h3:      clamp(1.15rem, 1.05rem + .4vw, 1.35rem);
  --t-lead:    clamp(1.03rem, .98rem + .35vw, 1.22rem);
  --t-body:    1rem;
  --t-sm:      .875rem;
  --t-xs:      .78rem;

  /* ---- space / shape ---- */
  --gut: clamp(20px, 4vw, 40px);
  --sec: clamp(64px, 8vw, 120px);
  --r-sm: 8px;
  --r:    14px;
  --r-lg: 22px;
  --r-xl: 30px;

  --sh-1: 0 1px 2px rgba(18,16,14,.04), 0 2px 8px rgba(18,16,14,.04);
  --sh-2: 0 2px 6px rgba(18,16,14,.05), 0 12px 32px rgba(18,16,14,.07);
  --sh-3: 0 8px 20px rgba(18,16,14,.08), 0 28px 60px rgba(18,16,14,.12);

  /* 动效系统：entry 用于入场（果断落定，无回弹拖尾）
     ui 用于 hover/开关（对称，短） */
  --ease:      cubic-bezier(.3,0,.2,1);
  --ease-out:  cubic-bezier(.16,.84,.44,1);
  --d-micro: 130ms;   /* 颜色、下划线 */
  --d-ui:    210ms;   /* hover、按钮、徽标 */
  --d-menu:  260ms;   /* 抽屉、下拉 */
  --d-entry: 440ms;   /* 滚动入场 */
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--paper);color:var(--ink);
  font-family:var(--font-sans);font-size:var(--t-body);line-height:1.65;
  font-feature-settings:"kern" 1,"liga" 1,"cv11" 1;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2.5px solid var(--brass);outline-offset:3px;border-radius:4px}
::selection{background:var(--brass);color:#fff}
a,button{-webkit-tap-highlight-color:rgba(20,58,49,.12)}

h1,h2,h3,h4,h5{line-height:1.12;letter-spacing:-.015em;font-weight:600}
.display{font-family:var(--font-display);font-weight:700;letter-spacing:-.028em;line-height:1.08}

/* ---------- layout ---------- */
.container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:var(--gut)}
.narrow{max-width:920px}
section{padding-block:var(--sec)}
section.tight{padding-block:calc(var(--sec) * .6)}
.band-paper2{background:var(--paper-2)}
.band-dark{background:var(--paper-3);color:var(--ink)}
.band-brand{background:var(--brand);color:#eef4f1}

.stack-sm > * + *{margin-top:.6rem}
.stack   > * + *{margin-top:1.1rem}

/* ---------- eyebrow / label ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:.55em;
  font-size:var(--t-xs);font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:var(--brass);
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.55}
.hero-dark .eyebrow{color:var(--brass)}

.sec-head{max-width:64ch}
.sec-head h2{font-family:var(--font-display);font-weight:650;font-size:var(--t-h2);margin:.5rem 0 .7rem;letter-spacing:-.028em;line-height:1.14}
.sec-head p{color:var(--ink-2);font-size:var(--t-lead);max-width:58ch}
.band-dark .sec-head p{color:var(--ink-2)}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(250,248,244,.82);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color var(--d-menu) var(--ease),
             background-color var(--d-menu) var(--ease),
             box-shadow var(--d-menu) var(--ease);
}
.nav.is-stuck{
  border-bottom-color:var(--line);
  background:rgba(250,248,244,.94);
  box-shadow:0 1px 16px rgba(18,16,14,.055);
}
.nav-inner{
  max-width:1240px;margin-inline:auto;padding:0 var(--gut);
  /* 高度恒定：sticky 导航压缩高度会导致滚动时下方内容持续跳动 */
  height:70px;display:flex;align-items:center;gap:clamp(18px,2.6vw,40px);
}
.brand{display:flex;align-items:baseline;gap:.1em;flex-shrink:0}
.brand b{font-family:var(--font-display);font-size:1.2rem;font-weight:700;letter-spacing:.01em;color:var(--brand)}
.brand i{width:5px;height:5px;border-radius:50%;background:var(--brass);font-style:normal;display:block;transform:translateY(-2px)}
.brand small{display:none}

.nav-links{display:flex;align-items:center;gap:clamp(14px,1.8vw,30px)}
.nav-links a{
  position:relative;font-size:var(--t-sm);font-weight:500;color:var(--ink-2);
  padding:.5em 0;transition:color var(--d-micro) var(--ease);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:.1em;height:1.5px;
  background:var(--brass);transition:right var(--d-ui) var(--ease-out);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-links a.active{color:var(--ink);font-weight:600}

.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-cta{
  display:inline-flex;align-items:center;gap:.5em;
  background:var(--brand);color:#fff !important;
  padding:.72em 1.35em;border-radius:999px;
  font-size:var(--t-sm);font-weight:600;letter-spacing:-.005em;
  transition:background-color var(--d-ui) var(--ease),box-shadow var(--d-ui) var(--ease),transform 90ms var(--ease);
  box-shadow:0 1px 2px rgba(20,58,49,.2);
}
.nav-cta:hover{background:var(--brand-2);box-shadow:0 4px 14px rgba(20,58,49,.20)}
.nav-cta:active{transform:translateY(1px)}
.nav-cta::after{content:"→";transition:transform var(--d-ui) var(--ease-out)}
.nav-cta:hover::after{transform:translateX(3px)}

/* burger + mobile drawer */
.burger{display:none;width:46px;height:46px;border:1px solid var(--line-2);border-radius:12px;background:var(--surface);cursor:pointer;position:relative;flex-shrink:0}
.burger:active{background:var(--paper-2)}
.burger span{position:absolute;left:13px;width:20px;height:1.7px;background:var(--ink);border-radius:2px;
  transition:top var(--d-ui) var(--ease),transform var(--d-ui) var(--ease),opacity 120ms linear}
.burger span:nth-child(1){top:17px}
.burger span:nth-child(2){top:22.5px}
.burger span:nth-child(3){top:28px}
.burger[aria-expanded="true"] span:nth-child(1){top:22.5px;transform:rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){top:22.5px;transform:rotate(-45deg)}

@media(max-width:1040px){
  .nav-links{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--surface);border-bottom:1px solid var(--line);
    padding:6px var(--gut) 18px;
    box-shadow:var(--sh-2);
    max-height:calc(100dvh - 66px);overflow-y:auto;-webkit-overflow-scrolling:touch;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:transform var(--d-menu) var(--ease-out),opacity var(--d-menu) var(--ease-out);
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{
    padding:1.05em .2em;border-bottom:1px solid var(--paper-2);
    font-size:1.05rem;font-weight:550;min-height:52px;display:flex;align-items:center;
  }
  .nav-links a:last-of-type{border-bottom:0}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand)}
  .burger{display:grid;place-items:center}
  /* 顶栏不放 CTA —— 药丸里只剩一个箭头毫无意义。
     CTA 改放两处：抽屉内全宽按钮 + 底部吸底条。 */
  .nav-cta{display:none}
  .nav-links .drawer-cta{
    display:flex;align-items:center;justify-content:center;gap:.5em;
    margin-top:14px;background:var(--brand);color:#fff;
    padding:1.05em 1.4em;border-radius:12px;border-bottom:0;
    font-size:1.02rem;font-weight:650;min-height:54px;
  }
  .nav-links .drawer-cta::after{content:"→"}
  .nav-links .drawer-cta:active{background:var(--brand-2)}
}
@media(min-width:1041px){
  .nav-links .drawer-cta{display:none}
  .mcta{display:none}
}

/* ---------- 底部吸底 CTA（仅移动端） ---------- */
.mcta{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:none;gap:10px;padding:10px var(--gut);
  padding-bottom:calc(10px + env(safe-area-inset-bottom));
  background:rgba(252,251,248,.92);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-top:1px solid var(--line);
  box-shadow:0 -2px 20px rgba(18,16,14,.06);
}
@media(max-width:1040px){
  .mcta{display:flex}
  body{padding-bottom:84px}          /* 给吸底条留位，避免遮住页脚 */
}
.mcta a{
  flex:1;display:flex;align-items:center;justify-content:center;gap:.45em;
  min-height:50px;border-radius:11px;font-size:.97rem;font-weight:650;
  transition:transform 90ms var(--ease);
}
.mcta a:active{transform:scale(.985)}
.mcta .m-primary{background:var(--brand);color:#fff}
.mcta .m-primary::after{content:"→"}
.mcta .m-ghost{border:1.5px solid var(--line-2);color:var(--ink);background:var(--surface)}

/* ---------- language switcher ---------- */
#langSwitch{position:relative}
.lang-btn{
  display:flex;align-items:center;justify-content:center;gap:.45em;
  background:transparent;border:1px solid var(--line-2);border-radius:12px;
  padding:.6em .85em;min-height:46px;font-size:var(--t-xs);font-weight:600;cursor:pointer;
  color:var(--ink-2);flex-shrink:0;
  transition:border-color var(--d-ui) var(--ease),color var(--d-ui) var(--ease),background-color var(--d-ui) var(--ease);
}
.lang-btn:active{background:var(--paper-2)}
.lang-code{display:none;font-weight:700;letter-spacing:.02em}
.lang-btn:hover{border-color:var(--brand);color:var(--ink);background:var(--surface)}
.lang-btn .caret{font-size:.6em;opacity:.6;transition:transform var(--d-ui) var(--ease-out)}
.lang-btn[aria-expanded="true"] .caret{transform:rotate(180deg)}
.lang-menu{
  position:absolute;right:0;top:calc(100% + 10px);min-width:178px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--sh-3);overflow:hidden;z-index:120;
  opacity:0;transform:translateY(-6px) scale(.985);pointer-events:none;
  transition:transform var(--d-menu) var(--ease-out),opacity var(--d-menu) var(--ease-out);
}
.lang-menu.open{opacity:1;transform:none;pointer-events:auto}
.lang-menu button{
  display:flex;align-items:center;gap:.6em;width:100%;text-align:left;
  background:none;border:0;padding:.72em 1.05em;font-size:var(--t-sm);cursor:pointer;
  transition:background-color var(--d-micro) linear;
}
.lang-menu button:hover{background:var(--paper-2)}
.lang-menu button.active{background:var(--brand-soft);color:var(--brand);font-weight:650}
@media(max-width:1040px){
  .lang-btn{border-radius:12px;padding:.6em .8em}
  .lang-full{display:none}
  .lang-code{display:inline}
  .lang-menu{min-width:200px}
  .lang-menu button{padding:.95em 1.15em;font-size:1rem;min-height:50px}
}

/* ---------- HERO (light, two-column editorial) ---------- */
.hero-dark{                      /* class name kept so the HTML needs no edit */
  position:relative;background:var(--paper);color:var(--ink);
  padding-block:clamp(52px,7vw,96px) clamp(48px,6vw,84px);
  overflow:hidden;
}
.hero-dark .container{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:clamp(32px,5vw,72px);align-items:center;
}
.hero-dark .container > *:not(.hero-bg){grid-column:1;min-width:0}
.hero-bg{                        /* was the full-bleed backdrop, now the right-hand image */
  grid-column:2;grid-row:1 / span 5;align-self:stretch;
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  min-height:clamp(300px,38vw,470px);background:var(--paper-3);
  box-shadow:var(--sh-2);
}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center 55%;opacity:1}
.hero-bg::after{                 /* faint warm veil so type beside it stays dominant */
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(252,251,248,.14),transparent 45%);
}
.hero-dark::after{content:none}
@media(max-width:900px){
  .hero-dark .container{grid-template-columns:1fr}
  .hero-dark .container > *:not(.hero-bg){grid-column:1}
  .hero-bg{grid-column:1;grid-row:auto;min-height:260px;order:-1;margin-bottom:.5rem}
}
.hero-dark h1{
  font-family:var(--font-display);font-weight:700;font-size:var(--t-h1);
  line-height:1.09;letter-spacing:-.032em;margin:1.05rem 0 1.2rem;max-width:20ch;
}
.hero-dark h1 em{font-style:normal;color:var(--brass)}
.hero-dark .lead{font-size:var(--t-lead);color:var(--ink-2);max-width:46ch;line-height:1.62}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.9rem}

.hero-meta{
  display:grid;grid-template-columns:repeat(2,1fr);gap:0;margin-top:clamp(28px,4vw,44px);
  border-top:1px solid var(--line);
}
.hero-meta > div{
  padding:1.15rem 1.3rem 1.15rem 0;
  border-right:1px solid var(--line);
}
.hero-meta > div:last-child{border-right:0}
.hero-meta > div:nth-child(2n){border-right:0}
.hero-meta > div:nth-child(-n+2){border-bottom:1px solid var(--line)}
.hero-meta dt{font-size:var(--t-xs);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:.35rem}
.hero-meta dd{font-size:.92rem;color:var(--ink);font-weight:550;line-height:1.45}
@media(max-width:480px){
  .hero-meta{grid-template-columns:1fr}
  .hero-meta > div{border-right:0;border-bottom:1px solid var(--line);padding:1rem 0}
  .hero-meta > div:last-child{border-bottom:0}
}

/* page header (interior pages, light) */
.page-head{padding-block:clamp(46px,6vw,84px) clamp(30px,4vw,48px)}
.page-head h1{
  font-family:var(--font-display);font-weight:700;font-size:var(--t-h1);
  letter-spacing:-.03em;line-height:1.11;margin:1rem 0 1.1rem;max-width:24ch;
}
.page-head .lead{font-size:var(--t-lead);color:var(--ink-2);max-width:62ch}
.crumb{font-size:var(--t-xs);color:var(--ink-3);letter-spacing:.02em;padding-top:1.6rem}
.crumb a{color:var(--ink-3);transition:color var(--d-micro) var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb span[aria-current]{color:var(--ink-2)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  padding:.95em 1.7em;border-radius:999px;border:1.5px solid transparent;
  font-size:.95rem;font-weight:600;letter-spacing:-.005em;cursor:pointer;
  transition:background-color var(--d-ui) var(--ease),box-shadow var(--d-ui) var(--ease),
             color var(--d-ui) var(--ease),border-color var(--d-ui) var(--ease),
             transform 90ms var(--ease);
}
.btn::after{content:"→";transition:transform var(--d-ui) var(--ease-out)}
.btn:hover::after{transform:translateX(3px)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--brass);color:#fff;box-shadow:0 2px 4px rgba(169,126,64,.25)}
.btn.primary:hover{background:var(--brass-2);box-shadow:0 4px 16px rgba(169,126,64,.26)}
.btn.dark{background:var(--brand);color:#fff}
.btn.dark:hover{background:var(--brand-2);box-shadow:0 4px 16px rgba(20,58,49,.22)}
.btn.ghost{border-color:var(--line-2);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink);background:var(--paper-2)}
.hero-dark .btn.ghost{border-color:var(--line-2);color:var(--ink)}
.hero-dark .btn.ghost:hover{border-color:var(--ink);background:var(--surface)}
.btn.plain::after{content:none}

/* ---------- chips / badges ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:1.4rem}
.chip{
  display:inline-flex;align-items:center;gap:.45em;
  background:var(--surface);border:1px solid var(--line);
  padding:.45em .95em;border-radius:999px;
  font-size:var(--t-xs);font-weight:600;color:var(--ink-2);
}
.chip.accent{background:var(--brass-soft);border-color:#ecdcc2;color:#8a6529}
.chip.green{background:var(--brand-soft);border-color:#cfe0d9;color:var(--brand)}
.hero-dark .chip{background:var(--surface);border-color:var(--line);color:var(--ink-2)}

/* ---------- grids ---------- */
.grid{display:grid;gap:clamp(16px,1.8vw,26px)}
.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:980px){.g3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.g3{grid-template-columns:1fr}}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1000px){.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.g4{grid-template-columns:1fr}}
.mt{margin-top:clamp(30px,4vw,50px)}

/* ---------- product card ---------- */
.pcard{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--d-ui) var(--ease),box-shadow var(--d-ui) var(--ease),border-color var(--d-ui) var(--ease);
}
.pcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.pcard .shot{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper-2)}
.pcard .shot img{width:100%;height:100%;object-fit:cover;object-position:center 42%;transition:transform 620ms var(--ease-out)}
.pcard:hover .shot img{transform:scale(1.028)}
.pcard .body{padding:1.35rem 1.45rem 1.5rem;display:flex;flex-direction:column;flex:1;gap:.55rem}
.pcard h3{min-height:2.4em;display:flex;align-items:flex-start}
.pcard h3{font-size:var(--t-h3);font-weight:650;letter-spacing:-.018em}
.pcard p{font-size:var(--t-sm);color:var(--ink-2);line-height:1.62}
.pcard .spec{
  margin-top:auto;padding-top:.95rem;border-top:1px solid var(--paper-2);
  display:flex;justify-content:space-between;align-items:baseline;gap:1rem;
  font-size:var(--t-xs);
}
.pcard .spec b{font-weight:650;color:var(--brass);letter-spacing:-.01em}
.pcard .spec span{color:var(--ink-3)}
.pcard .go{
  position:absolute;top:1.05rem;right:1.05rem;
  width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.92);backdrop-filter:blur(6px);
  display:grid;place-items:center;color:var(--brand);font-size:.95rem;
  opacity:0;transform:translateX(-5px);box-shadow:var(--sh-1);
  transition:opacity var(--d-ui) var(--ease),transform var(--d-ui) var(--ease-out);
}
.pcard:hover .go{opacity:1;transform:none}
.pcard-link{color:inherit}

/* ---------- full product range (text-led cards, no photos needed) ---------- */
.range{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.6vw,20px)}
@media(max-width:980px){.range{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.range{grid-template-columns:1fr}}
.rcard{
  position:relative;display:flex;flex-direction:column;gap:.6rem;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:1.5rem 1.5rem 1.35rem;color:inherit;
  transition:transform var(--d-ui) var(--ease),box-shadow var(--d-ui) var(--ease),border-color var(--d-ui) var(--ease);
}
a.rcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.rcard h3{font-size:1.02rem;font-weight:650;letter-spacing:-.014em;padding-right:2rem}
.rcard p{font-size:var(--t-sm);color:var(--ink-2);line-height:1.66;flex:1}
.rmeta{
  margin-top:.35rem;padding-top:.9rem;border-top:1px solid var(--paper-2);
  display:flex;justify-content:space-between;align-items:baseline;gap:1rem;font-size:var(--t-xs);
}
.rmeta b{font-weight:650;color:var(--brass);letter-spacing:-.01em}
.rmeta span{color:var(--ink-3)}
.rgo{
  position:absolute;top:1.35rem;right:1.35rem;color:var(--brass);font-size:.95rem;
  opacity:0;transform:translateX(-4px);
  transition:opacity var(--d-ui) var(--ease),transform var(--d-ui) var(--ease-out);
}
a.rcard:hover .rgo{opacity:1;transform:none}

/* ---------- value card (no image) ---------- */
.vcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:1.6rem 1.5rem;
  transition:transform var(--d-ui) var(--ease),box-shadow var(--d-ui) var(--ease);
}
.vcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.vcard .ico{
  width:40px;height:40px;border-radius:11px;background:var(--brand-soft);
  display:grid;place-items:center;color:var(--brand);margin-bottom:1rem;
  font-size:1.05rem;
}
.vcard h3{font-size:1.02rem;font-weight:650;margin-bottom:.5rem;letter-spacing:-.01em}
.vcard p{font-size:var(--t-sm);color:var(--ink-2);line-height:1.62}
.band-dark .vcard{background:var(--surface);border-color:var(--line)}

/* ---------- stats band ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-block:1px solid var(--line)}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{background:var(--paper);padding:clamp(24px,3.4vw,40px) clamp(18px,2.2vw,30px)}
.stat .n{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.2rem,1.5rem+2vw,3.3rem);line-height:1;
  color:var(--brand);letter-spacing:-.035em;font-variant-numeric:tabular-nums;
}
.stat .n small{font-size:.4em;color:var(--brass);margin-left:.1em;vertical-align:super;font-family:var(--font-sans);font-weight:700;letter-spacing:0}
.stat .l{margin-top:.7rem;font-size:var(--t-xs);letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);line-height:1.5}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2vw,24px)}
@media(max-width:1000px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}
.step{position:relative;padding-top:1.6rem;border-top:2px solid var(--line-2);transition:border-top-color var(--d-ui) var(--ease)}
.step:hover{border-top-color:var(--brass)}
.step .n{
  font-family:var(--font-display);font-size:.9rem;font-weight:700;color:var(--brass);
  letter-spacing:.05em;margin-bottom:.6rem;display:block;font-variant-numeric:tabular-nums;
}
.step h3{font-size:1.01rem;font-weight:650;margin-bottom:.45rem}
.step p{font-size:var(--t-sm);color:var(--ink-2);line-height:1.6}

/* ---------- table ---------- */
.tbl{margin-top:clamp(22px,3vw,34px);border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);overflow:hidden}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:var(--t-sm)}
thead th{
  background:var(--paper-2);text-align:left;padding:.95rem 1.3rem;
  font-size:var(--t-xs);font-weight:650;letter-spacing:.07em;text-transform:uppercase;
  color:var(--ink-2);white-space:nowrap;border-bottom:1px solid var(--line);
}
tbody td,tbody th{padding:.95rem 1.3rem;border-bottom:1px solid var(--paper-2);vertical-align:top}
tbody th{text-align:left;font-weight:600;color:var(--ink);white-space:nowrap;width:1%;background:#fdfcfa}
tbody tr:last-child td,tbody tr:last-child th{border-bottom:0}
tbody tr{transition:background-color var(--d-micro) linear}
tbody tr:hover{background:#fdfbf7}
td:last-child{font-variant-numeric:tabular-nums;font-weight:550}
.note{
  margin-top:1rem;font-size:var(--t-xs);color:var(--ink-3);line-height:1.6;
  padding-left:1rem;border-left:2px solid var(--line-2);
}

/* ---------- FAQ ---------- */
.faq{margin-top:clamp(22px,3vw,34px);border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:1.25rem 3rem 1.25rem 0;position:relative;
  font-size:1.01rem;font-weight:600;letter-spacing:-.01em;transition:color var(--d-micro) var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq summary::after{
  content:"";position:absolute;right:.45rem;top:50%;
  width:11px;height:11px;border-right:1.8px solid var(--brass);border-bottom:1.8px solid var(--brass);
  transform:translateY(-70%) rotate(45deg);transition:transform var(--d-menu) var(--ease-out);
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.faq .ans{padding:0 clamp(1rem,8vw,5rem) 1.5rem 0;color:var(--ink-2);font-size:.95rem;line-height:1.7;animation:ansIn 240ms var(--ease-out)}
@keyframes ansIn{from{opacity:0}to{opacity:1}}

/* ---------- form ---------- */
.form{display:grid;gap:1.25rem}
.field label{display:block;font-size:var(--t-xs);font-weight:650;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2);margin-bottom:.5rem}
.field input,.field select,.field textarea{
  /* 16px 是硬要求：iOS Safari 对更小的字号会在聚焦时自动放大整页 */
  width:100%;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-sm);
  padding:.9rem 1.05rem;font-size:16px;
  transition:border-color var(--d-ui) var(--ease),box-shadow var(--d-ui) var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:#a9a29a}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3.5px rgba(20,58,49,.09);
}
.field textarea{min-height:120px;resize:vertical;line-height:1.6}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237d766c' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1.05rem center;padding-right:2.6rem}
.field .hint{font-size:var(--t-xs);color:var(--ink-3);margin-top:.4rem}
.submit{
  justify-self:start;display:inline-flex;align-items:center;gap:.55em;
  background:var(--brand);color:#fff;border:0;border-radius:999px;
  padding:1.02em 2.1em;font-size:.98rem;font-weight:650;cursor:pointer;
  transition:background-color var(--d-ui) var(--ease),box-shadow var(--d-ui) var(--ease),transform 90ms var(--ease);
  box-shadow:0 2px 4px rgba(20,58,49,.2);
}
.submit:hover:not(:disabled){background:var(--brand-2);box-shadow:0 5px 18px rgba(20,58,49,.22)}
.submit:active:not(:disabled){transform:translateY(1px)}
.submit:disabled{opacity:.6;cursor:wait}
.form-msg{
  display:none;padding:1.05rem 1.3rem;border-radius:var(--r);font-size:.94rem;font-weight:550;line-height:1.6;
  background:var(--brand-soft);color:var(--brand);border:1px solid #cfe0d9;
}
.form-msg.err{background:#fbeae7;color:#9c3b2c;border-color:#f0d3cd}

/* aside cards on contact page */
.aside{display:grid;gap:14px;align-content:start}
.acard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:1.35rem 1.4rem}
.acard h3{font-size:.98rem;font-weight:650;margin-bottom:.5rem}
.acard p{font-size:var(--t-sm);color:var(--ink-2);line-height:1.62}
.acard.brand{background:var(--brand);border-color:var(--brand);color:#eef4f1}
.acard.brand p{color:#bccfc8}

/* ---------- CTA band ---------- */
.cta-band{background:var(--brand);color:#eef4f1;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:auto -10% -60% auto;width:60%;aspect-ratio:1;
  background:radial-gradient(circle,rgba(199,156,92,.22),transparent 68%);
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:2rem 2.5rem;position:relative}
.cta-inner > div:first-child{flex:1 1 380px;min-width:0}
.cta-inner > div:last-child{flex:0 0 auto}
.cta-inner h2{font-family:var(--font-display);font-weight:650;font-size:var(--t-h2);letter-spacing:-.028em;max-width:24ch;line-height:1.16}
.cta-inner p{color:#b9cdc6;font-size:var(--t-lead);max-width:44ch;margin-top:.8rem}
.cta-band .btn.primary{background:var(--brass);color:#fff}
.cta-band .btn.ghost{border-color:rgba(255,255,255,.32);color:#eef4f1}
.cta-band .btn.ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* ---------- footer ---------- */
.foot{background:var(--dark);color:#a9a49a;padding-block:clamp(52px,6vw,80px) 2rem;font-size:var(--t-sm)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:clamp(28px,4vw,56px)}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
.foot .brand b{color:#f3efe8}
.foot h4{color:#f3efe8;font-size:var(--t-xs);letter-spacing:.13em;text-transform:uppercase;margin-bottom:1rem;font-weight:650}
.foot a{display:block;margin-bottom:.62rem;color:#a9a49a;
  transition:color var(--d-micro) var(--ease),transform var(--d-ui) var(--ease)}
.foot a:hover{color:#f3efe8;transform:translateX(2px)}
.foot p{line-height:1.7;color:#8f887c;max-width:34ch}
.foot-base{
  margin-top:clamp(38px,5vw,60px);padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:.8rem 2rem;justify-content:space-between;
  font-size:var(--t-xs);color:#7a746a;
}

/* ---------- gallery strip ---------- */
.strip{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
@media(max-width:1000px){.strip{grid-template-columns:repeat(3,1fr)}}
@media(max-width:520px){.strip{grid-template-columns:repeat(2,1fr)}}
.strip figure{position:relative;aspect-ratio:1;overflow:hidden;border-radius:var(--r);background:var(--paper-2);border:1px solid var(--line)}
.strip img{width:100%;height:100%;object-fit:cover;object-position:center 45%;transition:transform 620ms var(--ease-out)}
.strip figure:hover img{transform:scale(1.03)}

/* ---------- image credit ---------- */
.credit{
  margin-top:1.1rem;font-size:var(--t-xs);color:var(--ink-3);line-height:1.6;
  background:var(--paper-2);border:1px dashed var(--line-2);border-radius:var(--r-sm);
  padding:.85rem 1.1rem;
}
.credit a{text-decoration:underline;text-underline-offset:2px}

/* ---------- scroll reveal ---------- */
/* 入场动效
   · 只在 JS 存活时隐藏内容 —— 否则脚本失败会导致整页空白（SEO + 可用性风险）
   · 位移 10px / 440ms：原来 20px / 750ms 元素会明显"飘"，是廉价感主因
   · stagger 由 JS 在元素真正进入视口时计算，不再用 HTML 里写死的 data-d
     （写死的延迟会让单独进入的元素也无故等待，第二行卡片还会重新从 0 排队）
   · 大块内容（表格、FAQ、图片带）只淡入不位移，避免整块"滑动"的笨重感 */
@property --rd{syntax:'<time>';inherits:false;initial-value:0ms}
html.js [data-reveal]{
  opacity:0;transform:translate3d(0,10px,0);
  transition:opacity var(--d-entry) var(--ease-out),
             transform var(--d-entry) var(--ease-out);
  transition-delay:var(--rd,0ms);
}
html.js [data-reveal].in{opacity:1;transform:none}
html.js [data-reveal].flat{transform:none}          /* 淡入-only */
html.js [data-reveal].flat:not(.in){opacity:0}

/* 首屏：不等 IntersectionObserver，加载即按 DOM 顺序编排一次进场 */
html.js .hero-dark [data-reveal],
html.js .page-head [data-reveal]{transition-duration:520ms}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  html.js [data-reveal]{opacity:1 !important;transform:none !important;transition-delay:0ms !important}
}


/* ---------- mobile polish ---------- */
@media(max-width:1040px){
  .nav-inner{height:66px;gap:12px}   /* 恒定：抽屉是 top:100% 定位，导航变高就会跟着跳 */
  .nav-right{gap:8px}
  .brand b{font-size:1.12rem}
  /* 面包屑长标题换行而不是溢出 */
  .crumb{line-height:1.6}
  /* 主按钮在窄屏占满宽度，避免两个按钮挤成一行半 */
  .hero-actions{gap:10px}
}
@media(max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center;width:100%;min-height:52px}
  .cta-inner .hero-actions{width:100%}
  .submit{width:100%;justify-content:center;min-height:54px}
  .stat{padding:22px 16px}
  .faq summary{padding-right:2.4rem;font-size:.99rem}
  .pcard .body{padding:1.15rem 1.2rem 1.3rem}
  .rcard{padding:1.3rem 1.25rem 1.2rem}
  .tbl{border-radius:var(--r)}
}