/* ══════════════════════════════════════════════════════════════
   NoiseClear — clean signal
   Light green-grey canvas · deep studio-green world ·
   one signal-green accent · Space Grotesk / Manrope / IBM Plex Mono
   ══════════════════════════════════════════════════════════════ */

:root{
  /* ── palette: 4 semantic slots ── */
  --canvas:#F3F5F1;          /* light green-grey air */
  --canvas-2:#EAEEE9;        /* deeper band */
  --world:#0E231D;           /* studio green-black */
  --world-2:#143029;
  --ink:#14281F;             /* ink, same hue deepened */
  --ink-2:#31453B;
  --muted:#5A6B61;           /* meta text, >=4.5:1 on canvas */
  --accent:#0C8F5C;          /* VU-meter signal green */
  --accent-2:#0A774D;        /* hover */
  --accent-ink:#EAF6F0;      /* text on accent */
  --tint:rgba(12,143,92,.09);
  --tint-strong:rgba(12,143,92,.16);
  --line:rgba(20,40,31,.14);
  --line-strong:rgba(20,40,31,.26);
  --line-light:rgba(232,245,238,.16);
  --white-soft:rgba(240,246,242,.92);

  /* ── shadows: 3 recipes, tinted, never flat black ── */
  --shadow-card:
    0 1px 2px rgba(20,40,31,.05),
    0 12px 28px -10px rgba(20,40,31,.10),
    0 36px 72px -32px rgba(20,40,31,.16);
  --shadow-float:
    0 2px 6px rgba(12,143,92,.08),
    0 20px 44px -14px rgba(12,143,92,.18),
    0 64px 120px -48px rgba(12,143,92,.20);
  --shadow-dark:
    0 24px 60px -20px rgba(0,0,0,.55),
    inset 0 1px 0 rgba(255,255,255,.06);

  /* ── radii: 4 roles ── */
  --r-shell:28px;
  --r-card:14px;
  --r-control:8px;
  --r-pill:999px;

  --gut:clamp(20px,3.6vw,64px);
  --sec-y:clamp(64px,9vw,120px);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-display:"Space Grotesk","Manrope",system-ui,sans-serif;
  --font-body:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--canvas);color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent-2)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
button,a[href],label,input[type="file"]{min-height:24px}
::selection{background:var(--accent);color:#fff}

:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

/* ── type scale: 5 steps, cliff between display and body ── */
.display{font-family:var(--font-display);font-weight:600;letter-spacing:-.025em;
  line-height:1.02}
h1{font-family:var(--font-display);font-weight:600;letter-spacing:-.025em;
  font-size:clamp(2.5rem,5vw,4.35rem);line-height:1.04}
h2{font-family:var(--font-display);font-weight:600;letter-spacing:-.018em;
  font-size:clamp(1.7rem,2.7vw,2.45rem);line-height:1.14}
h3{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;
  font-size:clamp(1.18rem,1.5vw,1.34rem);line-height:1.28}
h4{font-family:var(--font-body);font-weight:700;font-size:1.02rem}
p{max-width:68ch}
.lead{font-size:clamp(1.08rem,1.35vw,1.22rem);line-height:1.66;color:var(--ink-2)}
.meta{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted)}
.mono{font-family:var(--font-mono)}
strong{font-weight:700}
em{font-style:normal}

/* ── layout primitives ── */
.wrap{padding-inline:var(--gut)}
.shell{max-width:1240px;margin-inline:auto;padding-inline:var(--gut)}
.sec{padding-block:var(--sec-y);position:relative}
.sec-tight{padding-block:clamp(44px,6vw,72px)}
.rule{height:1px;background:var(--line);width:100%;border:0}

/* ── header ── */
header.site{
  position:fixed;inset:0 0 auto 0;z-index:90;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;
  padding:20px var(--gut);color:#fff;
  transition:padding .35s var(--ease),background .35s var(--ease),
             color .35s var(--ease),border-color .35s var(--ease);
  border-bottom:1px solid transparent;
}
header.site .brand{grid-column:1;justify-self:start}
header.site nav.main{grid-column:2;justify-self:center}
header.site .nav-end{grid-column:3;justify-self:end;display:flex;align-items:center;
  gap:12px;position:relative;z-index:96}
header.site:not(.solid) .nav-login{box-shadow:inset 0 0 0 1px rgba(240,246,242,.22)}
body.menu-open header.site:not(.solid){color:var(--ink)}
header.site.solid{
  background:rgba(243,245,241,.9);backdrop-filter:blur(14px) saturate(1.3);
  color:var(--ink);padding:10px var(--gut);border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(20,40,31,.03);
}
header.site.on-dark{color:#fff}
.brand{display:flex;align-items:baseline;gap:9px;min-height:44px}
.brand b{font-family:var(--font-display);font-weight:600;font-size:1.35rem;
  letter-spacing:-.02em}
.brand .mark{width:26px;height:26px;border-radius:7px;background:var(--accent);
  position:relative;flex:none;align-self:center}
.brand .mark::before{content:"";position:absolute;inset:6px 5px;
  background:
    linear-gradient(90deg,transparent 0 18%,#fff 18% 26%,transparent 26% 46%,#fff 46% 54%,transparent 54% 78%,#fff 78% 86%,transparent 86%);
  border-radius:2px}
.brand small{font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;
  opacity:.62;font-family:var(--font-mono)}
nav.main{display:flex;align-items:center;gap:clamp(14px,2.4vw,30px)}
nav.main a{font-size:.92rem;font-weight:600;letter-spacing:.01em;padding:10px 2px;
  position:relative;white-space:nowrap}
nav.main a::after{content:"";position:absolute;left:0;bottom:4px;height:2px;width:0;
  background:var(--accent);transition:width .3s var(--ease)}
nav.main a:hover::after{width:100%}
nav.main a.nav-link-active{color:var(--accent-2)}
nav.main a.nav-link-active::after{width:100%}
header.site:not(.solid) nav.main a.nav-link-active{color:#7FE0B0}
.hamburger{display:none;min-height:44px;min-width:44px;align-items:center;
  justify-content:center;border:1px solid var(--line);border-radius:10px;
  background:transparent;color:inherit;position:relative;z-index:95}
.hamburger span{display:block;width:20px;height:2px;background:currentColor;
  position:relative;transition:.3s var(--ease)}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;
  left:0;width:20px;height:2px;background:currentColor;transition:.3s var(--ease)}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
body.menu-open .hamburger span{background:transparent}
body.menu-open .hamburger span::before{top:0;transform:rotate(45deg)}
body.menu-open .hamburger span::after{top:0;transform:rotate(-45deg)}

/* ── "Tools" nav dropdown: panel in the same world-green palette as the
      account menu it sits next to, one column per tool group ── */
.nav-tools{position:relative;display:flex}
.nav-tools-btn{display:inline-flex;align-items:center;gap:7px;font:inherit;
  font-size:.92rem;font-weight:600;letter-spacing:.01em;color:inherit;
  background:none;border:0;padding:10px 2px;cursor:pointer;position:relative;
  white-space:nowrap}
.nav-tools-btn::after{content:"";position:absolute;left:0;bottom:4px;height:2px;
  width:0;background:var(--accent);transition:width .3s var(--ease)}
.nav-tools-btn:hover::after,.nav-tools-btn.nav-link-active::after{width:100%}
.nav-tools-btn.nav-link-active{color:var(--accent-2)}
header.site:not(.solid) .nav-tools-btn.nav-link-active{color:#7FE0B0}
.nt-caret{width:10px;height:10px;flex:none;opacity:.7;
  transition:transform .25s var(--ease)}
.nav-tools-btn[aria-expanded="true"] .nt-caret{transform:rotate(180deg)}
.nav-tools-panel{position:fixed;z-index:126;display:grid;
  grid-template-columns:1fr 1fr;gap:2px 22px;min-width:560px;
  max-width:calc(100vw - 32px);padding:18px;background:var(--world);
  border:1px solid rgba(240,246,242,.14);border-radius:var(--r-card);
  box-shadow:0 22px 50px -18px rgba(14,35,29,.55),0 2px 8px rgba(14,35,29,.28);
  opacity:0;transform:translateY(-6px);pointer-events:none;
  transition:opacity .16s ease,transform .16s ease}
.nav-tools-panel.open{opacity:1;transform:none;pointer-events:auto}
.nt-h{display:block;padding:2px 10px 8px;font-family:var(--font-mono);
  font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  color:rgba(240,246,242,.55)}
.nt-item{display:flex;gap:11px;align-items:flex-start;padding:10px;
  border-radius:11px;color:var(--white-soft);text-decoration:none;
  transition:background .18s}
.nt-item:hover{background:var(--accent)}
.nt-ico{flex:none;width:34px;height:34px;border-radius:10px;
  background:rgba(111,219,158,.14);color:#6FDB9E;display:grid;place-items:center}
.nt-item:hover .nt-ico{background:rgba(255,255,255,.18);color:#fff}
.nt-item b{display:block;font-size:.9rem;font-weight:700;line-height:1.25}
.nt-item i{display:block;margin-top:3px;font-style:normal;font-size:.78rem;
  line-height:1.35;color:rgba(240,246,242,.6)}
.nt-item:hover b{color:#fff}
.nt-item:hover i{color:rgba(255,255,255,.82)}
/* 面板里不做那条悬停横线：导航的横线规则（nav.main a::after）会连带命中这里，
   而这一行的悬停底色就是这个绿色，线在上面/下面都只是凭空多一道，用户定：不要 */
.nav-tools-panel .nt-item::after{display:none}

/* ── buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--r-pill);padding:14px 26px;font-weight:700;font-size:.95rem;
  letter-spacing:.01em;min-height:48px;transition:transform .3s var(--ease),
  background .25s,color .25s,border-color .25s,box-shadow .3s var(--ease);
  white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:var(--accent-2);color:#fff;
  box-shadow:var(--shadow-float)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-2)}
.btn-ghost-dark{border:1px solid rgba(255,255,255,.34);color:#fff}
.btn-ghost-dark:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-ink{background:var(--world);color:var(--white-soft)}
.btn-ink:hover{background:var(--accent);color:#fff}
.btn-lg{padding:17px 34px;font-size:1.02rem}
.btn-sm{padding:10px 18px;font-size:.88rem;min-height:42px}

/* ── chips & tags ── */
.chip{display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-pill);
  padding:7px 14px;font-size:.85rem;font-weight:700;background:var(--tint);
  color:var(--accent-2)}
.chip.dark{background:rgba(232,245,238,.1);color:#8FE4B7;border:1px solid rgba(232,245,238,.18)}
.tag{display:inline-block;border-radius:6px;padding:3px 9px;font-size:.78rem;
  font-weight:700;background:var(--canvas-2);color:var(--ink-2);border:1px solid var(--line)}

/* ── breadcrumb ── */
.crumbs{padding-top:96px}
.crumbs-inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding-block:18px;font-size:.86rem;color:var(--muted)}
.crumbs-inner a:hover{color:var(--accent-2)}
.crumbs-inner .sep{opacity:.5;font-family:var(--font-mono);font-size:.7rem}
.crumbs-inner .here{color:var(--ink-2);font-weight:700}
.crumbs-bar{border-bottom:1px solid var(--line);background:var(--canvas)}

/* ── home hero ── */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;
  overflow:hidden;background:var(--world);color:#fff}
.hero-media{position:absolute;inset:0}
.hero-media video,.hero-media img{width:100%;height:100%;object-fit:cover;
  object-position:60% 40%}
.hero-media video{transform:scale(1.05);animation:heroIn 3.2s var(--ease) both}
.hero-media img.hero-still{animation:heroIn 2.6s var(--ease) both}
@keyframes heroIn{from{transform:scale(1.14);opacity:.15}
  to{transform:scale(1.05);opacity:1}}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(100deg,rgba(8,20,16,.88) 0%,rgba(8,20,16,.55) 42%,rgba(8,20,16,.18) 100%),
    linear-gradient(180deg,rgba(8,20,16,.55) 0%,transparent 30%,rgba(8,20,16,.86) 100%)}
.hero-inner{position:relative;z-index:3;width:100%;
  padding:clamp(110px,16vh,160px) var(--gut) clamp(60px,9vh,96px);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,min(720px,46vw));
  gap:clamp(32px,5vw,72px);align-items:center}
.hero-copy h1{font-size:clamp(2.6rem,5.6vw,4.9rem);line-height:1.02;
  max-width:15ch;text-wrap:balance}
.hero-copy h1 .accent-w{color:#6FDB9E}
.hero-copy .lead{color:rgba(240,246,242,.82);max-width:56ch;margin-top:22px;
  font-size:clamp(1.05rem,1.4vw,1.24rem)}
.hero-copy .mini{margin-top:18px;font-size:.95rem;color:rgba(240,246,242,.66)}
.hero-meta-strip{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-meta-strip .hm{display:flex;align-items:center;gap:8px;font-size:.86rem;
  font-weight:600;color:rgba(240,246,242,.78);border:1px solid rgba(240,246,242,.16);
  border-radius:var(--r-pill);padding:8px 15px;background:rgba(255,255,255,.04)}
.hero-meta-strip svg{color:#6FDB9E}

/* ── tool panel ── */
.tool{position:relative;z-index:4}
.tool-card{
  background:rgba(14,35,29,.78);backdrop-filter:blur(18px) saturate(1.2);
  border:1px solid rgba(240,246,242,.16);border-radius:var(--r-shell);
  padding:clamp(22px,2.6vw,34px);
  box-shadow:var(--shadow-dark);
  animation:panelUp .9s var(--ease) .25s both}
@keyframes panelUp{from{opacity:0;transform:translateY(26px)}
  to{opacity:1;transform:none}}
.tool-card h2{font-size:1.34rem;letter-spacing:-.01em;color:#fff}
.tool-helper{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;
  color:rgba(240,246,242,.6);margin-top:8px;text-transform:none}

/* dropzone */
.dropzone{position:relative;margin-top:20px;border:1.5px dashed rgba(240,246,242,.34);
  border-radius:var(--r-card);padding:clamp(26px,4vh,44px) 22px;text-align:center;
  color:rgba(240,246,242,.9);transition:border-color .25s,background .25s;
  background:rgba(255,255,255,.03)}
.dropzone.drag{border-color:#6FDB9E;background:rgba(111,219,158,.1)}
.dropzone .dz-icon{width:46px;height:46px;margin:0 auto 12px;border-radius:14px;
  background:rgba(111,219,158,.14);display:grid;place-items:center;color:#6FDB9E}
.dropzone .dz-primary{font-weight:700;font-size:1.02rem}
.dropzone .dz-secondary{font-size:.84rem;color:rgba(240,246,242,.56);margin-top:7px}
.dropzone input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer}
.tool-actions{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}
.tool-actions .btn-ghost-dark{background:rgba(255,255,255,.06)}

/* file row */
.file-row{display:flex;align-items:center;gap:12px;margin-top:16px;
  background:rgba(255,255,255,.05);border:1px solid rgba(240,246,242,.14);
  border-radius:var(--r-card);padding:12px 14px}
.file-row .fname{flex:1;min-width:0;font-weight:700;font-size:.95rem;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-row .fsize{font-family:var(--font-mono);font-size:.76rem;color:rgba(240,246,242,.55)}
.file-row .fremove{color:rgba(240,246,242,.62);font-size:.85rem;padding:8px 6px;
  border-radius:8px;transition:color .2s}
.file-row .fremove:hover{color:#fff}
.file-row .ftype{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;
  text-transform:uppercase;color:#6FDB9E;border:1px solid rgba(111,219,158,.3);
  border-radius:6px;padding:3px 8px}

/* states */
.tool-state{display:none}
.tool-card.st-uploading .st-uploading,
.tool-card.st-processing .st-processing,
.tool-card.st-result .st-result,
.tool-card.st-paywall .st-paywall,
.tool-card.st-expired .st-expired,
.tool-card.st-failed .st-failed{display:block}

.progress-track{height:6px;border-radius:3px;background:rgba(240,246,242,.14);
  overflow:hidden;margin-top:18px}
.progress-fill{height:100%;width:0;border-radius:3px;background:var(--accent);
  transition:width .3s linear}
.progress-fill::after{content:"";display:block;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  background-size:200% 100%;animation:shine 1.2s linear infinite}
@keyframes shine{from{background-position:200% 0}to{background-position:-200% 0}}
.step-line{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;
  font-size:.86rem;color:rgba(240,246,242,.62)}
.step-line b{color:#6FDB9E;font-weight:700}
.step-line .done{color:rgba(240,246,242,.42);text-decoration:line-through}
.long-hint{margin-top:14px;font-size:.86rem;color:#E8C67E;
  display:flex;gap:8px;align-items:center}
.cancel-link{display:inline-block;margin-top:14px;color:rgba(240,246,242,.6);
  font-size:.88rem;text-decoration:underline;text-underline-offset:3px;padding:6px 2px}
.cancel-link:hover{color:#fff}

/* result */
.result-dl{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:18px}
.countdown{margin-top:16px;display:flex;align-items:baseline;gap:10px}
.countdown .cd-time{font-family:var(--font-mono);font-size:1.5rem;font-weight:700;
  color:#6FDB9E;letter-spacing:.04em}
.countdown .cd-label{font-size:.84rem;color:rgba(240,246,242,.6)}
.video-note{margin-top:14px;display:flex;gap:9px;align-items:center;font-size:.86rem;
  color:rgba(240,246,242,.66);border:1px solid rgba(111,219,158,.26);
  border-radius:var(--r-control);padding:9px 13px;background:rgba(111,219,158,.07)}
.result-detail{margin-top:12px;font-size:.84rem;color:rgba(240,246,242,.58)}

/* paywall */
.paywall-box{margin-top:18px;border:1px solid rgba(240,246,242,.18);
  border-radius:var(--r-card);padding:18px;background:rgba(255,255,255,.05)}
.paywall-box h3{color:#fff;font-size:1.05rem}
.price-line{margin-top:10px;font-size:.96rem;color:rgba(240,246,242,.85)}
.price-line b{color:#6FDB9E}
.pay-note{margin-top:12px;font-size:.8rem;color:rgba(240,246,242,.52)}
.paywall-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px}
.paywall-actions .btn{white-space:nowrap}
/* 付款结果写在页面里（工具卡内的 .pay-note，或计划区下面的 .pay-inline）：整站不用浮层提示 */
.pay-inline{display:none;margin:24px 0 0;padding:14px 17px;border-radius:var(--r-control);
  border:1px solid rgba(240,246,242,.22);background:rgba(255,255,255,.06);
  color:rgba(240,246,242,.92);font-size:.95rem;line-height:1.55}
.pay-inline.on{display:block}
.pay-inline b{display:block;color:#fff;font-weight:800;margin-bottom:3px}
.pay-inline.ok{border-color:rgba(111,219,158,.5);background:rgba(111,219,158,.12)}
.pay-inline.bad{border-color:rgba(255,170,150,.5);background:rgba(255,170,150,.12)}
.pay-note.ok{color:#9BE8BD}
.pay-note.bad{color:#FFC2AE}

/* expired */
.st-expired .expired-body{margin-top:14px;color:rgba(240,246,242,.78);font-size:.96rem}
.st-expired .expired-body p{max-width:44ch}

/* free allowance notice */
.free-note{display:flex;gap:10px;align-items:flex-start;margin-top:16px;
  font-size:.88rem;color:rgba(240,246,242,.72);line-height:1.5}
.free-note svg{color:#6FDB9E;flex:none;margin-top:2px}
.tool-privacy{margin-top:14px;font-size:.8rem;color:rgba(240,246,242,.5)}
.tool-support{margin-top:8px;font-size:.8rem;color:rgba(240,246,242,.5)}
.tool-support a{color:#9FE7C4;text-decoration:underline;text-underline-offset:3px;
  display:inline-block;padding:6px 2px;min-height:24px}

/* toast — absolute overlay, never pushes layout */
.toast{position:absolute;left:16px;right:16px;top:14px;z-index:6;
  border-radius:var(--r-control);padding:12px 16px;font-size:.88rem;font-weight:600;
  color:#fff;background:#7A2530;border:1px solid rgba(255,255,255,.2);
  box-shadow:var(--shadow-dark);opacity:0;transform:translateY(-8px);
  pointer-events:none;transition:opacity .3s var(--ease),transform .3s var(--ease)}
.toast.show{opacity:1;transform:none;pointer-events:auto}
.toast.success{background:#0B6B46}

/* ── home story intro ── */
.story-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(28px,4vw,64px);align-items:center}
.story-art{position:relative;border-radius:var(--r-shell);overflow:hidden;
  box-shadow:var(--shadow-card)}
.story-art img{width:100%;height:100%;object-fit:cover}
.story-art::after{content:"";position:absolute;inset:0;border:1px solid rgba(20,40,31,.06);
  border-radius:inherit}
.story-art .cap{position:absolute;left:16px;bottom:14px;right:16px;z-index:2;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;
  text-transform:uppercase;color:rgba(255,255,255,.85);
  background:rgba(14,35,29,.55);padding:7px 12px;border-radius:8px;
  backdrop-filter:blur(6px);width:fit-content}

/* ── steps ── */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(14px,2vw,22px);margin-top:40px}
.step{background:var(--canvas-2);border:1px solid var(--line);border-radius:var(--r-shell);
  padding:clamp(20px,2.4vw,28px);position:relative;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-card)}
.step .num{font-family:var(--font-mono);font-size:.78rem;color:var(--accent-2);
  letter-spacing:.1em}
.step h3{margin-top:14px}
.step p{margin-top:10px;margin-bottom:18px;font-size:.95rem;color:var(--ink-2);line-height:1.6}
.step .ic{width:44px;height:44px;border-radius:13px;background:var(--tint);
  color:var(--accent-2);display:grid;place-items:center;margin-top:auto}
.step .ic svg{width:24px;height:24px}
.step-photo{border-radius:var(--r-shell);overflow:hidden;margin-top:18px}
.step-photo img{width:100%;height:170px;object-fit:cover;
  transition:transform .8s var(--ease)}
.step:hover .step-photo img{transform:scale(1.05)}

/* ── split sections (text + figure) ── */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(28px,4.5vw,68px);align-items:center}
.split.one-col{grid-template-columns:minmax(0,1fr)}
.split.flip .fig{order:-1}
.fig{border-radius:var(--r-shell);overflow:hidden;box-shadow:var(--shadow-card);
  position:relative}
.fig img{width:100%;height:100%;object-fit:cover;min-height:280px}
.fig::after{content:"";position:absolute;inset:0;border:1px solid rgba(20,40,31,.06);
  border-radius:inherit;pointer-events:none}
.fig-caption{margin-top:12px;font-size:.8rem;color:var(--muted);max-width:60ch}

/* ── lists (doc bullets preserved) ── */
.list-clean{list-style:none;display:grid;gap:14px}
.list-clean li{display:flex;gap:12px;align-items:flex-start;font-size:1rem;
  color:var(--ink-2);line-height:1.6}
.list-clean li::before{content:"";flex:none;width:7px;height:7px;border-radius:50%;
  background:var(--accent);margin-top:11px}
.list-clean li strong{color:var(--ink)}
.spec-list{border:1px solid var(--line);border-radius:var(--r-shell);
  background:var(--canvas-2);padding:clamp(20px,2.4vw,30px);display:grid;gap:2px}
.spec-row{display:flex;justify-content:space-between;gap:18px;padding:11px 4px;
  border-bottom:1px solid rgba(20,40,31,.09);font-size:.97rem}
.spec-row:last-child{border-bottom:0}
.spec-row b{font-weight:700}
.spec-row span{color:var(--ink-2);text-align:right}

/* two-column can / can't */
.can-box{border-radius:var(--r-shell);padding:clamp(22px,2.6vw,32px);
  background:#EDF4EE;border:1px solid rgba(12,143,92,.16);height:100%}
.cant-box{border-radius:var(--r-shell);padding:clamp(22px,2.6vw,32px);
  background:#F4EFE9;border:1px solid rgba(122,37,48,.14);height:100%}
.can-box h3{display:flex;align-items:center;gap:10px}
.can-box h3 .tick{width:26px;height:26px;border-radius:9px;background:var(--accent);
  color:#fff;display:grid;place-items:center;flex:none}
.cant-box h3 .cross{width:26px;height:26px;border-radius:9px;background:#7A2530;
  color:#fff;display:grid;place-items:center;flex:none}
.can-box ul,.cant-box ul{list-style:none;display:grid;gap:12px;margin-top:20px}
.can-box li,.cant-box li{display:flex;gap:11px;font-size:.95rem;line-height:1.55;
  color:var(--ink-2)}
.can-box li::before{content:"✓";color:var(--accent-2);font-weight:800;flex:none}
.cant-box li::before{content:"✕";color:#8E3B46;font-weight:800;flex:none}

/* ── dark band (world) ── */
.band-dark{background:var(--world);color:#fff;position:relative;overflow:hidden}
.band-dark::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(60% 90% at 85% 10%,rgba(111,219,158,.14),transparent 60%),
    radial-gradient(40% 60% at 10% 90%,rgba(12,143,92,.12),transparent 55%)}
.band-dark .lead{color:rgba(240,246,242,.78)}
.band-dark p{color:rgba(240,246,242,.78)}
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.4vw,24px);
  margin-top:38px}
.price-card{border:1px solid rgba(240,246,242,.14);border-radius:var(--r-shell);
  padding:clamp(24px,3vw,36px);background:rgba(255,255,255,.05);position:relative;
  transition:transform .35s var(--ease),border-color .3s}
.price-card:hover{transform:translateY(-4px);border-color:rgba(111,219,158,.4)}
.price-card .amount{font-family:var(--font-display);font-size:clamp(2.4rem,4vw,3.4rem);
  font-weight:600;letter-spacing:-.03em;color:#fff}
.price-card .amount sup{font-size:.45em;color:#8FE4B7;font-family:var(--font-mono)}
.price-card h3{margin-top:8px;color:#EAF6F0}
.price-card p{margin-top:10px;font-size:.93rem;color:rgba(240,246,242,.7)}
.price-card .scope{position:absolute;top:22px;right:24px;font-family:var(--font-mono);
  font-size:.7rem;letter-spacing:.1em;color:#8FE4B7;
  border:1px solid rgba(111,219,158,.32);padding:5px 10px;border-radius:999px}

/* use cases */
.usecase{border-bottom:1px solid var(--line);padding-block:26px;display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:24px;align-items:baseline}
.usecase:last-child{border-bottom:0}
.usecase h3{font-size:1.16rem}
.usecase p{color:var(--ink-2);font-size:.98rem}

/* numbered check */
.check-nums{display:grid;gap:20px;counter-reset:cn}
.check-nums .cn-item{display:grid;grid-template-columns:44px 1fr;gap:16px}
.check-nums .cn-num{counter-increment:cn;font-family:var(--font-display);
  font-weight:600;font-size:1.5rem;color:var(--accent-2);
  width:44px;height:44px;border-radius:14px;background:var(--tint);
  display:grid;place-items:center}
.check-nums .cn-num::before{content:counter(cn,decimal-leading-zero)}
.check-nums p{color:var(--ink-2)}

/* contact card */
.contact-card{border:1px solid var(--line);border-radius:var(--r-shell);
  background:var(--canvas-2);padding:clamp(22px,2.6vw,32px);display:grid;gap:2px}
.cc-row{display:flex;justify-content:space-between;gap:16px;padding:12px 4px;
  border-bottom:1px solid rgba(20,40,31,.09);font-size:.97rem}
.cc-row:last-child{border-bottom:0}
.cc-k{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);padding-top:3px}
.cc-v{color:var(--ink-2);text-align:right}

/* ── pricing table ── */
.pricing-table{width:100%;border-collapse:collapse;margin-top:34px;
  background:var(--canvas-2);border-radius:var(--r-shell);overflow:hidden;
  border:1px solid var(--line)}
.pricing-table th,.pricing-table td{padding:15px 18px;text-align:left;
  font-size:.94rem;border-bottom:1px solid rgba(20,40,31,.09)}
.pricing-table thead th{font-family:var(--font-display);font-weight:600;
  background:var(--world);color:#fff;font-size:.95rem;letter-spacing:.01em}
.pricing-table thead th:first-child{color:rgba(240,246,242,.72)}
.pricing-table tbody tr:last-child td{border-bottom:0}
.pricing-table tbody td:first-child{font-weight:700;color:var(--ink)}
.pricing-table tbody tr:hover{background:rgba(12,143,92,.05)}

/* ── FAQ ── */
.faq{max-width:840px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:20px;text-align:left;padding:20px 4px;font-family:var(--font-display);
  font-weight:600;font-size:1.06rem;letter-spacing:-.005em;color:var(--ink);
  min-height:56px;transition:color .2s}
.faq-q:hover{color:var(--accent-2)}
.faq-q .fx{flex:none;width:32px;height:32px;border-radius:10px;background:var(--tint);
  color:var(--accent-2);display:grid;place-items:center;transition:transform .3s var(--ease)}
.faq-item.open .fx{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.faq-a-inner{padding:0 4px 24px;color:var(--ink-2);font-size:.98rem;line-height:1.68}
.faq-a-inner p{max-width:70ch}
.faq-item.open .faq-a{max-height:520px}
.faq-item.open .faq-q{color:var(--accent-2)}

/* ── CTA band ── */
.cta-band{background:linear-gradient(135deg,var(--world) 0%,var(--world-2) 100%);
  color:#fff;border-radius:var(--r-shell);padding:clamp(36px,5vw,64px);
  position:relative;overflow:hidden;text-align:center}
.cta-band::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(70% 90% at 20% 0%,rgba(111,219,158,.16),transparent 55%)}
.cta-band h2{max-width:22ch;margin-inline:auto}
.cta-band p{max-width:58ch;margin:16px auto 0;color:rgba(240,246,242,.76)}
.cta-band .btn{margin-top:28px}

/* ── page hero (inner pages) ── */
.page-hero{padding-top:clamp(120px,15vh,150px);padding-bottom:clamp(48px,7vw,80px);
  background:linear-gradient(180deg,var(--canvas-2) 0%,var(--canvas) 100%);
  border-bottom:1px solid var(--line)}
.page-hero h1{max-width:22ch;text-wrap:balance}
.page-hero .lead{margin-top:18px;max-width:66ch;color:var(--ink-2)}
.page-hero .crumbs-inner{padding:0 0 30px}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:clamp(28px,4vw,60px);align-items:center}
.page-hero .fig{min-height:300px;border-radius:var(--r-shell)}
.page-hero .fig img{min-height:300px}

/* ── prose (legal / long text) ── */
.prose{max-width:760px;margin-inline:auto}
.prose h2{margin-top:52px;font-size:clamp(1.5rem,2.2vw,1.95rem)}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:34px}
.prose p,.prose li{font-size:1rem;line-height:1.72;color:var(--ink-2)}
.prose p{margin-top:16px}
.prose ul,.prose ol{margin:14px 0 0 22px;display:grid;gap:10px;color:var(--ink-2)}
.prose .note{border-left:3px solid var(--accent);background:var(--tint);
  border-radius:0 var(--r-control) var(--r-control) 0;padding:14px 18px;
  margin-top:20px;font-size:.93rem}
.prose .last-updated{margin-top:44px;font-family:var(--font-mono);font-size:.78rem;
  letter-spacing:.06em;color:var(--muted);text-transform:none}

/* ── footer ── */
footer.site{background:var(--world);color:rgba(240,246,242,.74);
  padding:clamp(48px,6vw,72px) 0 0;position:relative}
footer.site::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(50% 80% at 90% 0%,rgba(111,219,158,.08),transparent 60%)}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);
  gap:clamp(24px,3vw,48px);padding-bottom:clamp(40px,5vw,56px)}
.foot-grid h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;
  text-transform:uppercase;color:rgba(240,246,242,.48);margin-bottom:18px}
.foot-grid ul{list-style:none;display:grid;gap:11px}
.foot-grid a{font-size:.94rem;color:rgba(240,246,242,.78);transition:color .2s}
.foot-grid a:hover{color:#8FE4B7}
.foot-brand p{font-size:.9rem;max-width:34ch;margin-top:14px;color:rgba(240,246,242,.6)}
.foot-bottom{border-top:1px solid rgba(240,246,242,.12);padding-block:20px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.86rem;color:rgba(240,246,242,.55)}
.foot-bottom a{color:rgba(240,246,242,.7);text-decoration:underline;
  text-underline-offset:3px}
.foot-bottom a:hover{color:#8FE4B7}

/* ── reveal on scroll ── */
.rv{opacity:0;transform:translateY(26px);
  transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-1{transition-delay:.06s}
.rv-2{transition-delay:.14s}
.rv-3{transition-delay:.22s}

/* ── signature motion: clean-signal equalizer ── */
.eq{display:flex;align-items:flex-end;gap:3px;height:34px}
.eq i{width:4px;border-radius:2px;background:var(--accent);height:20%;
  animation:eqb 1.6s ease-in-out infinite}
.eq i:nth-child(1){animation-delay:0s}
.eq i:nth-child(2){animation-delay:.12s}
.eq i:nth-child(3){animation-delay:.24s}
.eq i:nth-child(4){animation-delay:.36s}
.eq i:nth-child(5){animation-delay:.48s}
.eq i:nth-child(6){animation-delay:.6s}
.eq i:nth-child(7){animation-delay:.72s}
.eq i:nth-child(8){animation-delay:.84s}
.eq i:nth-child(9){animation-delay:.96s}
.eq i:nth-child(10){animation-delay:.08s}
.eq i:nth-child(11){animation-delay:.2s}
.eq i:nth-child(12){animation-delay:.32s}
@keyframes eqb{0%,100%{height:18%}50%{height:92%}}
.eq.dark i{background:#6FDB9E}

/* waveform motif */
.wave-mask{position:absolute;inset:0;pointer-events:none;opacity:.5;
  display:flex;align-items:center;justify-content:center}
.wave-mask svg{width:100%;height:100%}

/* parallax figure */
.fig.parallax img{will-change:transform}
@media (prefers-reduced-motion:no-preference){
  .fig.parallax img{transform:scale(1.12)}
}

/* ── responsive ── */
@media (max-width:1060px){
  .hero-inner{grid-template-columns:1fr;padding-top:130px}
  .tool-card{max-width:560px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .split,.story-grid,.page-hero-grid{grid-template-columns:1fr}
  .split.flip .fig{order:0}
  .price-grid{grid-template-columns:1fr}
  .usecase{grid-template-columns:1fr;gap:8px}
}
@media (max-width:980px) and (min-width:761px){
  header.site{gap:16px}
  header.site .brand small{display:none}
  header.site .nav-end{gap:8px}
  nav.main{gap:clamp(10px,1.6vw,20px)}
  nav.main a{font-size:.86rem}
  header.site .nav-login{padding:8px 14px;font-size:.82rem;min-height:38px}
}
@media (max-width:760px){
  nav.main{position:fixed;inset:0;background:rgba(243,245,241,.98);
    backdrop-filter:blur(16px);flex-direction:column;align-items:flex-start;
    justify-content:center;gap:8px;padding:96px var(--gut) 40px;
    transform:translateX(100%);transition:transform .4s var(--ease);
    color:var(--ink)}
  nav.main.open{transform:none}
  nav.main a{font-size:1.35rem;padding:12px 4px;min-height:44px;width:100%}
  nav.main a::after{display:none}
  /* the Tools dropdown becomes a plain, always-open list inside the mobile menu */
  .nav-tools{display:block;width:100%}
  .nav-tools-btn{font-size:1.35rem;font-weight:600;padding:12px 4px;width:100%;
    justify-content:flex-start;min-height:44px}
  .nav-tools-btn::after{display:none}
  .nt-caret{width:13px;height:13px}
  .nav-tools-panel{position:static;min-width:0;max-width:none;padding:0 0 8px 4px;
    display:block;opacity:1;transform:none;pointer-events:auto;background:none;
    border:0;box-shadow:none}
  .nt-h{color:var(--muted);padding:10px 0 2px}
  .nt-item{padding:8px 6px;color:var(--ink)}
  .nt-item:hover{background:var(--tint)}
  .nt-item b{font-size:1rem;color:var(--ink)}
  .nt-item:hover b{color:var(--ink)}
  .nt-item i{color:var(--muted)}
  .nt-item:hover i{color:var(--ink-2)}
  .nt-ico{width:28px;height:28px;background:var(--tint);color:var(--accent-2)}
  .hamburger{display:flex}
  header.site{grid-template-columns:1fr auto;gap:12px}
  header.site .brand small{display:none}
  header.site .nav-login{padding:8px 14px;font-size:.8rem;min-height:38px}
  header.site.solid nav.main{color:var(--ink)}
  .steps{grid-template-columns:1fr}
  .hero{min-height:auto}
  .hero-inner{padding-top:116px}
  .crumbs{padding-top:76px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-brand{grid-column:1}
  .pricing-table{font-size:.85rem}
  .pricing-table th,.pricing-table td{padding:11px 10px}
  .toast{left:12px;right:12px}
}

/* ── reduced motion ── */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto}
  .rv{opacity:1;transform:none}
  .hero-media video,.hero-media img.hero-still{animation:none;transform:none}
  .tool-card{animation:none}
  .fig.parallax img{transform:none}
}

/* hit-area floor for inline text links (a11y + review gate) */
.crumbs-inner a{display:inline-block;padding:6px 2px;min-height:24px}
.foot-bottom a{display:inline-block;padding:6px 2px;min-height:24px}
.cta-band a:not(.btn){display:inline-block;padding:4px 2px;min-height:24px}
.prose a:not(.btn){display:inline-block;padding:2px 1px;min-height:24px}
.faq-a-inner a:not(.btn){display:inline-block;padding:3px 1px;min-height:24px}

/* ── pricing page: plan cards ── */
.plan-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2.2vw,22px);margin-top:34px}
@media (max-width:1080px){.plan-grid{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.plan-grid{grid-template-columns:1fr}}
.plan-card{position:relative;display:flex;flex-direction:column;gap:14px;
  border:1px solid rgba(240,246,242,.14);border-radius:var(--r-shell);
  padding:clamp(24px,2.6vw,30px);background:rgba(255,255,255,.05);color:#fff;
  transition:transform .35s var(--ease),border-color .3s}
.plan-card:hover{transform:translateY(-4px);border-color:rgba(111,219,158,.4)}
.plan-card.featured{border-color:rgba(111,219,158,.55);background:rgba(111,219,158,.07)}
.plan-flag{position:absolute;top:20px;right:20px;font-family:var(--font-mono);
  font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:#8FE4B7;
  border:1px solid rgba(111,219,158,.32);padding:5px 10px;border-radius:999px}
.plan-name{font-family:var(--font-display);font-weight:600;font-size:1.08rem;
  letter-spacing:-.01em;color:#EAF6F0;padding-right:80px}
.plan-price{font-family:var(--font-display);font-weight:600;
  font-size:clamp(2.2rem,3.4vw,2.9rem);letter-spacing:-.03em;line-height:1;color:#fff}
.plan-price sup{font-size:.45em;color:#8FE4B7;font-family:var(--font-mono);
  vertical-align:super;margin-right:2px}
.plan-per{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  color:rgba(240,246,242,.6)}
.plan-feats{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:10px}
.plan-feats li{position:relative;padding-left:24px;font-size:.93rem;
  color:rgba(240,246,242,.78);line-height:1.55}
.plan-feats li::before{content:"\2713";position:absolute;left:0;top:0;color:#6FDB9E;font-weight:800}
.plan-card .btn{margin-top:auto;width:100%}
.plan-note{margin-top:22px;font-family:var(--font-mono);font-size:.78rem;
  letter-spacing:.04em;color:rgba(240,246,242,.72)}

/* ── hero tool card: desktop enlargement (≈720px wide, internals scaled ×1.2) ── */
@media (min-width:1061px){
  .tool-card{padding:clamp(26px,3.1vw,41px)}
  .tool-card h2{font-size:1.6rem}
  .tool-helper{font-size:0.89rem;margin-top:9px}
  .dropzone{margin-top:24px;padding:clamp(31px,4.8vh,53px) 26px;
    border-width:2px;border-radius:17px}
  .dropzone .dz-icon{width:55px;height:55px;border-radius:17px;margin:0 auto 14px}
  .dropzone .dz-icon svg{width:31px;height:31px}
  .dropzone .dz-primary{font-size:1.23rem}
  .dropzone .dz-secondary{font-size:1.01rem;margin-top:8px}
  .tool-actions{gap:14px;margin-top:19px}
  .tool-actions .btn{padding:17px 31px;font-size:1.14rem;min-height:58px}
  .tool-actions .btn-sm{padding:12px 22px;font-size:1.06rem;min-height:50px}
  .file-row{gap:14px;margin-top:19px;padding:14px 17px;border-radius:17px}
  .file-row .fname{font-size:1.14rem}
  .file-row .fsize{font-size:0.91rem}
  .file-row .fremove{font-size:1.02rem;padding:9px 7px;border-radius:9px}
  .file-row .ftype{font-size:0.84rem;padding:3px 9px;border-radius:7px}
  .progress-track{height:7px;border-radius:4px;margin-top:22px}
  .step-line{gap:9px;margin-top:17px;font-size:1.03rem}
  .long-hint{margin-top:17px;font-size:1.03rem;gap:9px}
  .cancel-link{margin-top:17px;font-size:1.06rem;padding:7px 3px}
  .result-dl{gap:17px;margin-top:22px}
  .countdown{margin-top:19px;gap:12px}
  .countdown .cd-time{font-size:1.8rem}
  .countdown .cd-label{font-size:1.01rem}
  .video-note{margin-top:17px;gap:11px;font-size:1.03rem;padding:11px 16px}
  .result-detail{margin-top:14px;font-size:1.01rem}
  .paywall-box{margin-top:22px;padding:22px;border-radius:17px}
  .paywall-box h3{font-size:1.26rem}
  .price-line{margin-top:12px;font-size:1.15rem}
  .pay-note{margin-top:14px;font-size:0.96rem}
  .st-expired .expired-body{margin-top:17px;font-size:1.15rem}
  .free-note{gap:12px;margin-top:19px;font-size:1.06rem}
  .tool-privacy{margin-top:17px;font-size:0.96rem}
  .tool-support{margin-top:9px;font-size:0.96rem}
  .tool-card .upload-pct{font-size:1.14rem!important;margin-top:19px!important}
  .tool-card .st-processing h3,.tool-card .st-result h3{font-size:1.26rem!important;margin-top:7px!important}
  .tool-card .st-processing p{font-size:1.06rem!important;margin-top:7px!important}
}

/* ── tool actions on phones: keep both buttons on one row ── */
@media (max-width:480px){
  .tool-actions{flex-wrap:nowrap;gap:8px}
  .tool-actions .btn{flex:1 1 auto;min-width:0;padding-inline:10px;font-size:.78rem}
  .tool-actions .btn-sm{flex:0 0 auto;padding-inline:12px;font-size:.78rem}
}