/* ==========================================================================
   VPNFH design system — base layer
   1 tokens · 2 reset · 3 typography · 4 layout · 5 buttons
   6 header · 7 footer · 8 surfaces · 9 reveal · 10 responsive
   ========================================================================== */

/* ---------- 1. design tokens ---------- */
:root{
  color-scheme:light;

  /* surfaces */
  --bg:#FBFBFC;
  --bg-panel:#FFFFFF;
  --bg-panel-2:#F2F0F7;
  --bg-panel-3:#F7F5FB;
  --border:#E4E1EB;
  --border-strong:#D5D0E0;
  --table-head-bg:#F4F1F9;
  --row-stripe:rgba(139,47,214,.035);
  --footer-bg:#F3F1F7;
  --header-bg:rgba(251,251,252,.84);
  --badge-bg:rgba(255,255,255,.78);

  /* text */
  --text:#14121A;
  --text-muted:#67636F;
  --text-faint:#8C8798;
  --text-invert:#FFFFFF;

  /* accent family */
  --accent:#8B2FD6;
  --accent-dark:#5E1C93;
  --accent-mid:#A93FC9;
  --accent-2:#E58BD6;
  --accent-soft:rgba(139,47,214,.10);
  --accent-soft-2:rgba(139,47,214,.06);
  --accent-line:rgba(139,47,214,.26);
  --lime-a:#D9F26B;
  --lime-b:#B4E44A;
  --lime-soft:rgba(180,228,74,.22);
  --lime-ink:#3E540A;

  /* semantic */
  --success:#0B7A55;
  --success-light:#3FD39B;
  --success-wash:rgba(11,122,85,.10);
  --warn:#A96A12;
  --warn-wash:rgba(169,106,18,.10);
  --error:#C1352C;
  --error-wash:rgba(193,53,44,.10);

  /* dark client window */
  --ink:#141119;
  --ink-2:#1C1922;
  --win-line:rgba(255,255,255,.09);
  --win-line-soft:rgba(255,255,255,.06);
  --win-fill:rgba(255,255,255,.045);
  --win-fill-soft:rgba(255,255,255,.035);
  --win-fill-strong:rgba(255,255,255,.085);
  --win-text:rgba(255,255,255,.92);
  --win-text-soft:rgba(255,255,255,.62);
  --win-text-dim:rgba(255,255,255,.44);
  --chip-plan-bg:rgba(139,47,214,.34);
  --chip-plan-line:rgba(229,139,214,.42);
  --success-halo:rgba(63,211,155,.16);

  /* atmosphere layers */
  --wash-accent:rgba(139,47,214,.055);
  --wash-accent-0:rgba(139,47,214,0);
  --wash-pink:rgba(229,139,214,.06);
  --wash-pink-0:rgba(229,139,214,0);
  --dot-ink:rgba(94,28,147,.16);

  /* panel sheen */
  --panel-sheen:rgba(255,255,255,.46);
  --panel-sheen-strong:rgba(255,255,255,.62);
  --panel-sheen-0:rgba(255,255,255,0);
  --panel-dot:rgba(255,255,255,.95);
  --card-edge:rgba(255,255,255,.9);
  --shelf-lime:rgba(62,84,10,.22);
  --veil:rgba(20,18,26,.46);

  /* focus ring */
  --focus-ring:var(--accent);

  /* shadows */
  --shadow-pill:0 1px 2px rgba(20,18,26,.05);
  --shadow-float:0 12px 26px -14px rgba(94,28,147,.45),0 1px 2px rgba(20,18,26,.05);
  --shadow-panel-violet:0 34px 70px -34px rgba(94,28,147,.55),0 2px 8px rgba(94,28,147,.10);
  --shadow-panel-lime:0 34px 70px -34px rgba(96,124,16,.45),0 2px 8px rgba(96,124,16,.10);
  --shadow-window:0 30px 60px -28px rgba(20,17,25,.78),inset 0 1px 0 rgba(255,255,255,.10);
  --shadow-card:0 22px 44px -22px rgba(70,96,10,.42),inset 0 1px 0 rgba(255,255,255,.9);
  --shadow-refund:0 16px 30px -14px rgba(20,17,25,.55),inset 0 0 0 1px rgba(255,255,255,.9);
  --shadow-btn:0 12px 26px -14px rgba(20,18,26,.75),inset 0 1px 0 rgba(255,255,255,.12);
  --shadow-btn-hover:0 18px 32px -16px rgba(20,18,26,.82),inset 0 1px 0 rgba(255,255,255,.16);
  --shadow-card-soft:0 18px 38px -28px rgba(94,28,147,.40),inset 0 1px 0 rgba(255,255,255,.9);

  /* flag fills */
  --flag-red:#D8232A;
  --flag-white:#FFFFFF;
  --flag-blue:#1B3A8B;
  --flag-green:#0E8A4A;
  --flag-us-blue:#23326E;

  /* type */
  --font-display:"Inter","Noto Sans SC","Noto Sans JP","Noto Sans KR","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Inter","Noto Sans SC","Noto Sans JP","Noto Sans KR","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  /* radii */
  --r-panel:20px;
  --r-card:16px;
  --r-window:14px;
  --r-chip:10px;
  --r-pill:999px;

  /* layout */
  --wrap-max:1200px;
  --gutter:32px;
  --header-h:68px;

  /* spacing scale */
  --sp-1:4px;
  --sp-2:8px;
  --sp-3:12px;
  --sp-4:16px;
  --sp-5:24px;
  --sp-6:32px;
  --sp-7:48px;
  --sp-8:64px;
  --sp-9:88px;
}

/* ---------- 2. reset ---------- */
*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:96px;
}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
figure,blockquote,dl,dd{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit;max-width:100%}
svg{display:block}
img{max-width:100%;height:auto}
::selection{background:var(--accent-soft);color:var(--accent-dark)}
:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}
html.nav-open{overflow:hidden}

/* ---------- 3. typography ---------- */
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.14;
  letter-spacing:-.03em;
  color:var(--text);
}
h1{font-size:clamp(44px,4.8vw,64px);line-height:1.08;letter-spacing:-.032em}
h2{font-size:clamp(26px,2.7vw,36px);line-height:1.18}
h3{font-size:clamp(19px,1.6vw,22px);line-height:1.3;letter-spacing:-.02em}
h4{font-size:17px;line-height:1.35;letter-spacing:-.01em}
strong{font-weight:600}
small{font-size:12.5px}

code,kbd,samp{
  font-family:var(--font-mono);
  font-size:.9em;
  overflow-wrap:anywhere;
  word-break:break-word;
  background:var(--bg-panel-2);
  border:1px solid var(--border);
  border-radius:6px;
  padding:.08em .34em;
}

pre{
  max-width:100%;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  margin:0;
  padding:16px 18px;
  border-radius:12px;
  border:1px solid var(--border);
  background:var(--ink);
  color:var(--win-text);
  font-family:var(--font-mono);
  font-size:13px;
  line-height:1.7;
}
pre code{
  display:block;
  background:none;
  border:0;
  padding:0;
  font-size:inherit;
  overflow-wrap:normal;
  word-break:normal;
}

hr{border:0;border-top:1px solid var(--border);margin:32px 0}

.grad-text{
  background:linear-gradient(96deg,var(--accent-dark) 0%,var(--accent) 58%,var(--accent-mid) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:var(--accent-dark);
}

.no-break{white-space:nowrap}

.lead{font-size:clamp(16px,1.5vw,19px);line-height:1.7;color:var(--text-muted)}
.mono{font-family:var(--font-mono);letter-spacing:.02em}
.muted{color:var(--text-muted)}
.faint{color:var(--text-faint)}

/* ---------- 4. layout ---------- */
.page{
  position:relative;
  display:flex;
  flex-direction:column;
  min-height:100svh;
  max-width:100%;
  overflow-x:clip;
}

.wrap{
  width:100%;
  max-width:var(--wrap-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.wrap-narrow{max-width:840px}

.sec{padding-top:var(--sp-9);padding-bottom:var(--sp-9)}
.sec-sm{padding-top:var(--sp-7);padding-bottom:var(--sp-7)}
.sec-tight{padding-top:var(--sp-6);padding-bottom:var(--sp-6)}

.sec-head{max-width:720px;margin-bottom:var(--sp-6);min-width:0}
.sec-head.is-center{margin-inline:auto;text-align:center}
.sec-title{font-size:clamp(26px,2.7vw,36px);line-height:1.18;letter-spacing:-.03em}
.sec-lead{margin-top:12px;font-size:16px;line-height:1.75;color:var(--text-muted)}
.sec-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--accent-dark);
}

.atmosphere{
  position:absolute;
  top:0;left:0;right:0;
  height:760px;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(120% 52% at 50% -12%,var(--wash-accent) 0%,var(--wash-accent-0) 64%),
    linear-gradient(180deg,var(--wash-pink) 0%,var(--wash-pink-0) 58%);
}
.atmosphere::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(var(--dot-ink) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.22;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 72%);
  mask-image:linear-gradient(180deg,#000 0%,transparent 72%);
}

.skip-link{
  position:absolute;
  left:-9999px;
  top:0;
  z-index:200;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 16px;
  border-radius:var(--r-pill);
  background:var(--text);
  color:var(--text-invert);
  font-size:13px;
}
.skip-link:focus{left:var(--gutter);top:10px}

.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

/* ---------- 5. buttons & links ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  font-family:var(--font-body);
  font-size:15px;
  font-weight:500;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease,background-color .18s ease;
}
.btn svg{flex:none}

.btn-primary{
  height:52px;
  padding-inline:27px;
  border-radius:var(--r-pill);
  background:var(--text);
  color:var(--text-invert);
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-btn-hover)}
.btn-primary .btn-arrow{transition:transform .18s ease}
.btn-primary:hover .btn-arrow{transform:translateX(2px)}

.btn-secondary{
  padding:2px 1px;
  color:var(--text);
  border-bottom:1px solid var(--text);
}
.btn-secondary:hover{color:var(--accent-dark);border-bottom-color:var(--accent-dark)}

.btn-ghost{
  min-height:44px;
  padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--border-strong);
  background:var(--bg-panel);
  color:var(--text);
  box-shadow:var(--shadow-pill);
}
.btn-ghost:hover{
  border-color:var(--accent);
  color:var(--accent-dark);
  transform:translateY(-1px);
}

.btn-lime{
  min-height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--lime-a) 0%,var(--lime-b) 100%);
  color:var(--text);
  box-shadow:0 12px 26px -16px var(--lime-ink);
}
.btn-lime:hover{transform:translateY(-1px)}

.btn-sm{height:auto;min-height:38px;padding-inline:16px;font-size:13.5px}
.btn-block{width:100%}

.link-underline{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding-bottom:1px;
  color:var(--text);
  border-bottom:1px solid var(--text);
  font-size:14px;
  transition:color .16s ease,border-color .16s ease;
}
.link-underline svg{flex:none;transition:transform .16s ease}
.link-underline:hover{color:var(--accent-dark);border-bottom-color:var(--accent-dark)}
.link-underline:hover svg{transform:translateX(2px)}

/* ---------- 6. header ---------- */
.site-header{
  position:relative;
  z-index:30;
  border-bottom:1px solid var(--border);
  background:var(--header-bg);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  max-width:var(--wrap-max);
  height:var(--header-h);
  margin:0 auto;
  padding-inline:var(--gutter);
}

.brand{display:inline-flex;align-items:center;gap:9px;flex:none}
.brand-mark{
  display:block;
  width:30px;height:30px;
  flex:none;
  border-radius:9px;
}
.brand-word{font-size:17px;font-weight:600;letter-spacing:-.02em;color:var(--text)}
.brand-cn{
  padding-left:9px;
  border-left:1px solid var(--border);
  font-size:12.5px;
  font-weight:400;
  letter-spacing:.02em;
  line-height:1.2;
  color:var(--text-muted);
}

.main-nav{display:flex;align-items:center;height:100%;margin:0 auto;min-width:0}
.nav-list{
  display:flex;
  align-items:center;
  gap:18px;
  height:100%;
  margin:0;
  padding:0;
  list-style:none;
}
.nav-list li{display:flex;align-items:center;height:100%}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:var(--header-h);
  font-size:13.5px;
  letter-spacing:.01em;
  white-space:nowrap;
  color:var(--text-muted);
  transition:color .16s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  opacity:0;
  transform:scaleX(.35);
  transition:opacity .18s ease,transform .18s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{opacity:.4;transform:scaleX(1)}
.nav-link.is-active{color:var(--text);font-weight:500}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:10px;flex:none;margin-left:auto}

.lang-switch{position:relative}
.lang-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:5px;
  min-height:34px;
  padding:0 10px;
  border-radius:8px;
  font-size:12.5px;
  white-space:nowrap;
  color:var(--text-muted);
  transition:color .16s ease,background-color .16s ease;
}
.lang-btn:hover{color:var(--text);background:var(--bg-panel-2)}
.lang-btn svg{width:10px;height:10px;flex:none;transition:transform .18s ease}
.lang-btn[aria-expanded="true"] svg{transform:rotate(180deg)}

.lang-menu{
  position:absolute;
  top:calc(100% + 8px);
  right:0;
  z-index:60;
  display:none;
  min-width:156px;
  padding:6px;
  border-radius:12px;
  border:1px solid var(--border);
  background:var(--bg-panel);
  box-shadow:var(--shadow-float);
}
.lang-menu.is-open{display:block}
.lang-menu a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  min-height:38px;
  padding:6px 10px;
  border-radius:8px;
  font-size:13px;
  color:var(--text-muted);
}
.lang-menu a:hover{background:var(--bg-panel-2);color:var(--text)}
.lang-menu a[aria-current="true"]{color:var(--accent-dark);font-weight:500}

.login-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  min-height:36px;
  padding:0 15px;
  border-radius:var(--r-pill);
  border:1px solid var(--border-strong);
  background:var(--bg-panel);
  font-size:13px;
  font-weight:500;
  color:var(--text);
  box-shadow:var(--shadow-pill);
  transition:border-color .16s ease,color .16s ease,box-shadow .16s ease,transform .16s ease;
}
.login-btn svg{width:15px;height:15px;flex:none;color:var(--accent)}
.login-btn:hover{
  border-color:var(--accent);
  color:var(--accent-dark);
  box-shadow:0 10px 22px -12px rgba(139,47,214,.6);
  transform:translateY(-1px);
}

.menu-btn{
  display:none;
  align-items:center;
  justify-content:center;
  min-width:44px;
  min-height:44px;
  border-radius:10px;
  border:1px solid var(--border);
  color:var(--text);
}
.menu-btn:hover{background:var(--bg-panel-2)}

.nav-drawer{display:none}

/* ---------- 7. footer ---------- */
.site-footer{
  position:relative;
  margin-top:auto;
  border-top:1px solid var(--border);
  background:var(--footer-bg);
  color:var(--text-muted);
  font-size:13.5px;
}
.footer-inner{
  max-width:var(--wrap-max);
  margin:0 auto;
  padding:56px var(--gutter) 28px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  align-items:start;
}
.footer-brand{min-width:0}
.footer-logo{display:inline-flex;align-items:center;gap:9px}
.footer-logo .brand-word{font-size:16px}
.footer-desc{margin-top:12px;max-width:34ch;line-height:1.7;color:var(--text-muted)}
.footer-fact{
  display:inline-flex;
  flex-wrap:wrap;
  gap:6px 10px;
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.03em;
  color:var(--text-faint);
}
.footer-col{min-width:0}
.footer-col-title{
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.12em;
  color:var(--text-faint);
}
.footer-links{display:flex;flex-direction:column;gap:2px;margin-top:12px}
.footer-links a{
  display:inline-flex;
  align-items:center;
  min-height:32px;
  padding:2px 0;
  color:var(--text-muted);
  transition:color .16s ease;
}
.footer-links a:hover{color:var(--accent-dark)}
.footer-hot{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.footer-hot a{
  display:inline-flex;
  align-items:center;
  max-width:100%;
  min-height:28px;
  padding:4px 10px;
  border-radius:var(--r-pill);
  border:1px solid var(--border);
  background:var(--bg-panel);
  font-size:12px;
  color:var(--text-muted);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  transition:color .16s ease,border-color .16s ease;
}
.footer-hot a:hover{color:var(--accent-dark);border-color:var(--accent-line)}
.footer-lang{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:12px}
.footer-lang a{
  display:inline-flex;
  align-items:center;
  min-height:32px;
  padding:2px 0;
  font-size:13px;
  color:var(--text-muted);
}
.footer-lang a:hover{color:var(--accent-dark)}
.footer-lang a[aria-current="true"]{color:var(--accent-dark);font-weight:500}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--border);
  font-size:12.5px;
  color:var(--text-faint);
}
.footer-copy{font-family:var(--font-mono);font-size:12px;letter-spacing:.02em}
.footer-legal{display:flex;flex-wrap:wrap;gap:6px 18px}
.footer-legal a{display:inline-flex;align-items:center;min-height:28px;color:var(--text-faint)}
.footer-legal a:hover{color:var(--accent-dark)}

/* ---------- 8. surfaces ---------- */
.card{
  position:relative;
  min-width:0;
  background:var(--bg-panel);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card-soft);
}
.card-pad{padding:24px}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  max-width:100%;
  min-height:24px;
  padding:3px 10px;
  border-radius:var(--r-pill);
  border:1px solid var(--border);
  background:var(--bg-panel);
  font-size:12px;
  color:var(--text-muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.badge-dot{
  width:6px;height:6px;
  flex:none;
  border-radius:2px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 0 0 3px var(--accent-soft);
}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}

.fact-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  max-width:100%;
  min-height:28px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--accent-line);
  background:var(--accent-soft-2);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.02em;
  color:var(--accent-dark);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.fact-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  background:var(--border);
  overflow:hidden;
}
.fact-cell{min-width:0;padding:18px 20px;background:var(--bg-panel)}
.fact-key{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--text-faint)}
.fact-val{margin-top:6px;font-size:20px;font-weight:500;letter-spacing:-.02em;color:var(--text)}

#server-status{
  position:relative;
  display:block;
  max-width:100%;
  overflow:hidden;
  margin:0 0 var(--sp-6);
}
#server-status > *{max-width:100%;min-width:0}

/* ---------- 9. reveal ---------- */
.reveal{transition:opacity .5s ease,transform .5s ease}
.reveal.pending{opacity:0;transform:translateY(16px)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.reveal.pending{opacity:1;transform:none;transition:none}
  .btn,.link-underline,.nav-link,.login-btn{transition:none}
}

/* ---------- 10. responsive ---------- */
@media (max-width:1240px){
  .nav-list{gap:14px}
  .nav-link{font-size:13px}
}

@media (max-width:1080px){
  .main-nav{display:none}
  .lang-switch{display:none}
  .menu-btn{display:inline-flex}
  .header-actions{margin-left:auto}

  .nav-drawer{
    position:absolute;
    top:100%;left:0;right:0;
    z-index:40;
    display:none;
    flex-direction:column;
    gap:4px;
    max-height:calc(100dvh - var(--header-h));
    overflow-y:auto;
    overscroll-behavior:contain;
    padding:10px var(--gutter) 18px;
    background:var(--bg-panel);
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-float);
  }
  .nav-drawer.is-open{display:flex}
  .nav-drawer ul{display:flex;flex-direction:column;gap:2px;width:100%}
  .nav-drawer a{
    display:flex;
    align-items:center;
    width:100%;
    min-height:48px;
    padding:10px 12px;
    border-radius:10px;
    font-size:15px;
    color:var(--text);
  }
  .nav-drawer a:hover{background:var(--bg-panel-2)}
  .nav-drawer a[aria-current="page"]{background:var(--accent-soft);color:var(--accent-dark);font-weight:500}
  .drawer-label{margin-top:8px;padding:8px 12px 0;border-top:1px solid var(--border);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--text-faint)}
  .nav-drawer ul:last-child a{min-height:44px;font-size:14px;color:var(--text-muted)}
}

@media (max-width:900px){
  .sec{padding-top:var(--sp-8);padding-bottom:var(--sp-8)}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .fact-band{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:768px){
  h1{font-size:clamp(28px,7.4vw,38px);line-height:1.16;letter-spacing:-.02em}
  h2{font-size:clamp(24px,5.6vw,30px)}
  .sec-title{font-size:clamp(24px,5.6vw,30px)}
  .sec-lead{font-size:15px}
  .atmosphere{height:560px}
}

@media (max-width:640px){
  :root{--gutter:18px;--header-h:62px}
  .header-inner{gap:12px}
  .brand-cn{display:none}
  .brand-word{font-size:16px}
  .login-btn{padding:0 12px;font-size:12.5px}
  .no-break{white-space:normal}
  .sec{padding-top:var(--sp-7);padding-bottom:var(--sp-7)}
  .sec-head{margin-bottom:var(--sp-5)}
  .card-pad{padding:18px}
  .btn-primary{width:100%;max-width:340px}
  .btn-sm{width:auto}
  .footer-inner{padding-top:40px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .fact-band{grid-template-columns:1fr 1fr}
  .fact-cell{padding:14px}
  .fact-val{font-size:17px}
}

@media (max-width:380px){
  :root{--gutter:16px}
  .login-btn{padding:0 10px}
}

/* lh:local-harden:start */
:is(h1,h2,h3,h4){text-wrap:balance}
:is(p,li,dd,dt,figcaption,blockquote,td,th){text-wrap:pretty}
html[lang|="ko"] body{word-break:keep-all;overflow-wrap:break-word}
html[lang|="ja"] :is(h1,h2,h3,h4){word-break:auto-phrase}
.lh-tscroll{overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}
@media (max-width:640px){.lh-tscroll :is(th,td){min-width:5.5em}}
@supports (animation-timeline:scroll()){
  .float-cta{animation:lh-fab-in linear both;animation-timeline:scroll(root);animation-range:0 70vh}
}
@keyframes lh-fab-in{0%,45%{opacity:0;visibility:hidden}100%{opacity:1;visibility:visible}}
/* lh:local-harden:end */