/* ============================================================
   星月工作室门户 xywhsoft.com · 星月夜空主题
   家族设计语言（与 mdo/xrt/xs/xge/xlang 同族）
   ============================================================ */

:root {
  --bg0: #080c16;
  --bg1: #0b111f;
  --bg2: #101827;
  --bg3: #141d30;
  --line:      rgba(226,232,244,.13);
  --line-soft: rgba(226,232,244,.07);
  --ink:       #eef2fa;
  --ink-dim:   #b9c2d4;
  --ink-faint: #7e889e;

  --moon:      #d9b96a;            /* 月金 · 主强调 */
  --moon-deep: #b3924a;
  --moon-soft: #ecd39a;
  --cyan:      #38bdf8;
  --blue:      #5b9dff;
  --violet:    #9d8cf5;
  --teal:      #3fc9a8;
  --navy:      #7b93d4;
  --cinnabar:  #d4553a;            /* mdo 朱砂 */

  --grad-brand: linear-gradient(120deg,#ecd39a 0%,#d9b96a 52%,#b3924a 100%);
  --glow-moon: rgba(217,185,106,.10);
  --glow-blue: rgba(91,157,255,.09);

  --font-ui: "Inter","Segoe UI","PingFang SC","HarmonyOS Sans SC",
             "Microsoft YaHei",system-ui,sans-serif;
  --font-display: "Noto Serif SC","Source Han Serif SC","STSong","SimSun",
             "PingFang SC","Microsoft YaHei",serif;
  --font-mono: "JetBrains Mono","Cascadia Code","SF Mono",Consolas,
             "Courier New",monospace;

  --radius: 12px;
  --radius-lg: 18px;
  --max-w: 1180px;
  --nav-h: 64px;
  --ease: cubic-bezier(.22,.7,.25,1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  background: var(--bg0); color: var(--ink);
  font-family: var(--font-ui); font-size: 16px; line-height: 1.75;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
::selection { background: rgba(217,185,106,.30); color: #fff; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--moon-soft); }
h1,h2,h3,h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.28; }
:focus-visible { outline: 2px solid var(--moon); outline-offset: 2px; border-radius: 4px; }
code { font-family: var(--font-mono); font-size: .86em; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }

/* ---------- 背景：星月夜空 ---------- */
.bg-scene {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(820px 480px at 14% -4%, var(--glow-moon), transparent 62%),
    radial-gradient(860px 520px at 97% 10%, var(--glow-blue), transparent 60%),
    radial-gradient(3px 3px at 12% 22%, rgba(226,232,244,.35), transparent 100%),
    radial-gradient(2px 2px at 28% 64%, rgba(226,232,244,.22), transparent 100%),
    radial-gradient(2px 2px at 46% 18%, rgba(226,232,244,.28), transparent 100%),
    radial-gradient(3px 3px at 63% 76%, rgba(226,232,244,.20), transparent 100%),
    radial-gradient(2px 2px at 78% 34%, rgba(226,232,244,.30), transparent 100%),
    radial-gradient(2px 2px at 90% 68%, rgba(226,232,244,.22), transparent 100%),
    var(--bg0);
}

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 200;
  padding: 8px 16px; border-radius: 8px;
  background: var(--moon); color: #1a1408; font-size: 14px;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--nav-h);
  background: rgba(8,12,22,.78);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.nav.scrolled { border-bottom-color: var(--line-soft); background: rgba(8,12,22,.92); }
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 28px;
  height: 100%; display: flex; align-items: center; gap: 26px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--ink); font-family: var(--font-display); font-size: 19px;
}
.nav-logo img { width: 28px; height: 28px; display: block; }
.nav-logo em {
  font-style: normal; font-family: var(--font-mono); font-size: 11px;
  color: var(--ink-faint); border: 1px solid var(--line);
  padding: 1px 7px; border-radius: 999px; margin-left: 2px;
}
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin-left: auto; }
.nav-links > li > a, .nav-dropdown > summary {
  display: block; padding: 8px 13px; border-radius: 8px;
  color: var(--ink-dim); font-size: 14.5px; cursor: pointer;
  transition: color .2s, background .2s; user-select: none; white-space: nowrap;
}
.nav-links > li > a:hover, .nav-dropdown > summary:hover { color: var(--ink); background: rgba(226,232,244,.06); }
.nav-dropdown { position: relative; }
.nav-dropdown > summary { list-style: none; }
.nav-dropdown > summary::-webkit-details-marker { display: none; }
.nav-dropdown > summary::after { content: " ▾"; font-size: 10px; color: var(--ink-faint); }
.nav-dropdown[open] > summary { color: var(--ink); }
.nav-dropdown > div {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 190px;
  background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 6px; box-shadow: 0 16px 42px rgba(0,0,0,.45); display: flex; flex-direction: column;
}
.nav-dropdown > div > a, .nav-dropdown > div > span {
  padding: 8px 12px; border-radius: 8px; font-size: 14px; color: var(--ink-dim);
}
.nav-dropdown > div > a:hover { color: var(--ink); background: rgba(226,232,244,.06); }
.nav-dropdown .lang-cur { color: var(--moon-soft); cursor: default; }
.nav-cta {
  margin-left: 8px; padding: 8px 18px; border-radius: 10px;
  background: var(--moon); color: #1a1408; font-size: 14px; font-weight: 600;
  transition: background .2s, transform .2s;
}
.nav-cta:hover { background: var(--moon-soft); color: #1a1408; transform: translateY(-1px); }
.nav-toggle {
  display: none; margin-left: auto; width: 42px; height: 42px;
  border: 1px solid var(--line); border-radius: 10px;
  background: transparent; cursor: pointer; position: relative;
}
.nav-toggle span {
  position: absolute; left: 11px; right: 11px; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s, top .25s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { top: 20px; transform: rotate(-45deg); }
.nav-drawer {
  display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; z-index: 99;
  background: var(--bg1); border-bottom: 1px solid var(--line);
  padding: 14px 28px 22px; flex-direction: column; gap: 2px;
}
.nav-drawer.open { display: flex; }
.nav-drawer > a, .nav-drawer > details > summary {
  padding: 11px 6px; color: var(--ink-dim); font-size: 16px;
  border-bottom: 1px solid var(--line-soft); cursor: pointer;
}
.nav-drawer > a:hover, .nav-drawer > details > summary:hover { color: var(--ink); }
.nav-drawer details > summary { list-style: none; }
.nav-drawer details > summary::-webkit-details-marker { display: none; }
.nav-drawer details > div { display: flex; flex-direction: column; padding-left: 12px; }
.nav-drawer details > div > a { padding: 9px 6px; font-size: 15px; color: var(--ink-dim); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: calc(var(--nav-h) + 72px) 0 40px; }
.hero-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 28px;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px 6px 7px; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(226,232,244,.04); font-size: 13px; color: var(--ink-dim); margin-bottom: 26px;
}
.hero-badge .mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 5px; background: var(--moon); color: #1a1408;
  font-family: var(--font-mono); font-size: 10px; font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(26,20,8,.25);
}
.hero h1 { font-size: clamp(34px, 4.6vw, 54px); letter-spacing: .01em; margin-bottom: 4px; }
.grad {
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.ink-line { position: relative; height: 2px; margin: 22px 0 20px; background: var(--line-soft); }
.ink-line i {
  position: absolute; inset: 0; transform-origin: left center; transform: scaleX(0);
  background: linear-gradient(90deg, var(--moon-deep), var(--moon) 70%, var(--moon-soft));
}
.ink-line i::after {
  content: ""; position: absolute; right: -3px; top: 50%;
  width: 8px; height: 8px; border-radius: 50%;
  transform: translateY(-50%) scale(0); background: var(--moon);
  transition: transform .3s var(--ease) .5s;
}
.ink-line.snapped i { animation: snap .6s var(--ease) forwards; }
.ink-line.snapped i::after { transform: translateY(-50%) scale(1); }
@keyframes snap { to { transform: scaleX(1); } }
.hero-desc { color: var(--ink-dim); font-size: 17px; max-width: 34em; }
.hero-desc strong { color: var(--ink); font-weight: 600; }
.hero-actions { display: flex; gap: 14px; margin: 30px 0 18px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px; border-radius: 12px; font-size: 15.5px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s var(--ease), background .2s, border-color .2s;
}
.btn-primary { background: var(--moon); color: #1a1408; box-shadow: 0 8px 26px rgba(217,185,106,.25); }
.btn-primary:hover { background: var(--moon-soft); color: #1a1408; transform: translateY(-2px); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: rgba(226,232,244,.03); }
.btn-ghost:hover { border-color: rgba(226,232,244,.3); background: rgba(226,232,244,.07); color: var(--ink); }
.hero-assurance { font-size: 13.5px; color: var(--ink-faint); letter-spacing: .02em; }
.hero-assurance span { margin: 0 7px; color: var(--moon); }

/* 家族星图（hero 右侧） */
.constellation {
  position: relative; border: 1px solid var(--line-soft); border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg1), var(--bg0));
  padding: 30px 28px 24px; overflow: hidden;
}
.constellation::before {
  content: ""; position: absolute; right: -60px; top: -60px;
  width: 180px; height: 180px; border-radius: 50%;
  background: radial-gradient(circle, rgba(217,185,106,.16), transparent 65%);
}
.const-title {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .22em;
  color: var(--ink-faint); text-transform: uppercase; margin-bottom: 18px;
}
.const-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px; margin-bottom: 8px;
  border: 1px solid var(--line-soft); border-left: 3px solid var(--prod, var(--blue));
  border-radius: 10px; background: var(--bg2);
  transition: transform .2s var(--ease), border-color .2s;
}
.const-item:hover { transform: translateX(4px); border-color: var(--line); }
.const-item .c-dot {
  width: 9px; height: 9px; border-radius: 50%; flex: none;
  background: var(--prod, var(--blue));
  box-shadow: 0 0 10px var(--prod, var(--blue));
}
.const-item .c-name { color: var(--ink); font-size: 14.5px; font-weight: 600; }
.const-item .c-name small { color: var(--ink-faint); font-weight: 400; font-size: 12px; margin-left: 8px; }
.const-item .c-tag {
  margin-left: auto; font-family: var(--font-mono); font-size: 10.5px;
  color: var(--ink-faint); border: 1px solid var(--line-soft);
  padding: 2px 8px; border-radius: 999px; white-space: nowrap;
}

.hero-stats {
  max-width: var(--max-w); margin: 56px auto 0; padding: 0 28px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line-soft); border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg); overflow: hidden;
}
.stat-cell { display: block; padding: 22px 26px; background: var(--bg1); color: var(--ink); transition: background .25s; }
.stat-cell:hover { background: var(--bg2); }
.stat-cell .num { font-family: var(--font-mono); font-size: 27px; font-weight: 700; color: var(--moon); line-height: 1.2; }
.stat-cell .num i { font-style: normal; font-size: 15px; margin-left: 3px; color: var(--ink-faint); }
.stat-cell .lbl { font-size: 13px; color: var(--ink-faint); margin-top: 5px; }

/* ---------- Section 骨架 ---------- */
.section { padding: 86px 0; }
.section-alt { background: rgba(226,232,244,.018); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section-head { max-width: 720px; margin-bottom: 46px; }
.eyebrow {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--moon-soft); margin-bottom: 12px;
}
.section-title { font-size: clamp(26px, 3vw, 34px); margin-bottom: 14px; }
.section-lead { color: var(--ink-dim); font-size: 16.5px; }

/* ---------- 产品矩阵 ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.b-card {
  padding: 26px 24px; border: 1px solid var(--line-soft); border-radius: var(--radius-lg);
  background: var(--bg1); display: flex; flex-direction: column; gap: 10px;
  border-top: 2px solid var(--prod, var(--line));
  transition: border-color .25s, background .25s, transform .25s var(--ease);
}
.b-card:hover { background: var(--bg2); transform: translateY(-3px); border-color: var(--prod, var(--line)); border-top-width: 2px; }
.capability-label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em;
  color: var(--moon);
}
.b-card h3 { font-size: 18.5px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.b-card h3 .soon {
  font-family: var(--font-ui); font-size: 11px; font-weight: 500;
  color: var(--moon-soft); border: 1px solid rgba(217,185,106,.45);
  padding: 1px 8px; border-radius: 999px;
}
.b-card p { color: var(--ink-dim); font-size: 14.5px; flex: 1; }
.b-card p strong { color: var(--ink); font-weight: 600; }
.b-card > a { font-size: 14px; color: var(--blue); }
.b-card > a:hover { color: var(--moon-soft); }
.b-card.wide { grid-column: span 2; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips code {
  font-size: 11.5px; color: var(--ink-dim);
  background: rgba(226,232,244,.05); border: 1px solid var(--line-soft);
  padding: 2px 9px; border-radius: 6px;
}

/* 内核栈条带 */
.stack-band {
  grid-column: span 3;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 18px 24px; border: 1px dashed var(--line); border-radius: var(--radius-lg);
  background: rgba(226,232,244,.02);
}
.stack-band .sb-title { font-family: var(--font-display); font-size: 16px; font-weight: 700; color: var(--ink); }
.stack-band .sb-item {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-dim);
}
.stack-band .sb-item .c-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--prod, var(--blue)); box-shadow: 0 0 8px var(--prod, var(--blue)); }
.stack-band .sb-note { color: var(--ink-faint); font-size: 12.5px; margin-left: auto; }

/* ---------- 技术栈 ---------- */
.arch-wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 16px; align-items: stretch; }
.arch-panel { border: 1px solid var(--line-soft); border-radius: var(--radius-lg); background: var(--bg1); padding: 28px; }
.arch-panel h3 { font-size: 20px; margin-bottom: 6px; }
.arch-panel h3 .tagchip {
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint);
  border: 1px solid var(--line); padding: 2px 8px; border-radius: 999px;
  vertical-align: 3px; margin-left: 8px;
}
.arch-sub { color: var(--ink-faint); font-size: 13.5px; margin-bottom: 18px; }
.arch-stack { display: flex; flex-direction: column; gap: 8px; }
.arch-layer {
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 13px 16px; background: var(--bg2);
  border-left: 3px solid var(--layer-c, var(--blue));
  display: flex; flex-direction: column; gap: 7px; transition: transform .2s var(--ease);
}
.arch-layer:hover { transform: translateX(4px); }
.arch-layer .a-name { font-family: var(--font-display); font-size: 15.5px; font-weight: 700; color: var(--ink); }
.arch-layer .a-name small { font-family: var(--font-ui); font-weight: 400; color: var(--ink-faint); font-size: 12.5px; margin-left: 8px; }
.a-mods { display: flex; flex-wrap: wrap; gap: 6px; }
.a-mods code {
  font-size: 11.5px; color: var(--ink-dim);
  background: rgba(226,232,244,.05); border: 1px solid var(--line-soft);
  padding: 2px 9px; border-radius: 6px;
}
.arch-principles { display: flex; flex-direction: column; gap: 18px; }
.arch-principles article { padding: 18px 20px; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--bg1); }
.arch-principles h4 { font-size: 16px; margin-bottom: 6px; color: var(--ink); }
.arch-principles p { color: var(--ink-dim); font-size: 14px; }
.arch-principles code { color: var(--moon); font-size: .9em; }

/* ---------- Evidence ---------- */
.evidence-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.evidence-card {
  border: 1px solid var(--line-soft); border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg1), var(--bg0));
  padding: 30px 28px; display: flex; flex-direction: column; gap: 12px;
}
.evidence-card .capability-label { color: var(--moon-soft); }
.evidence-number { font-family: var(--font-mono); font-size: 44px; font-weight: 700; color: var(--ink); line-height: 1.1; }
.evidence-number small { font-family: var(--font-ui); font-size: 15px; font-weight: 400; color: var(--ink-faint); margin-left: 10px; }
.evidence-card h3 { font-size: 18px; }
.evidence-card p { color: var(--ink-dim); font-size: 14.5px; flex: 1; }
.evidence-card > a { font-size: 14px; color: var(--moon-soft); }
.evidence-card > a:hover { color: var(--moon); }

/* ---------- 友链 ---------- */
.friends { padding: 64px 0 30px; }
.friends-title { font-size: 15px; color: var(--ink-faint); letter-spacing: .18em; text-align: center; margin-bottom: 26px; font-family: var(--font-ui); font-weight: 400; }
.friends-main { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.friend-card {
  display: flex; align-items: center; gap: 14px;
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 14px 18px; background: rgba(226,232,244,.02);
  transition: border-color .25s, background .25s;
}
.friend-card:hover { border-color: var(--line); background: rgba(226,232,244,.05); }
.friend-logo {
  flex: none; width: 136px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: #ffffff; border-radius: 9px; padding: 6px;
}
.friend-logo img { max-width: 100%; max-height: 100%; object-fit: contain; display: block; }
.friend-logo--dark { background: #181818; border: 1px solid var(--line-soft); }
.friend-text { display: flex; flex-direction: column; min-width: 0; }
.friend-name { color: var(--ink); font-size: 14px; font-weight: 600; }
.friend-desc { color: var(--ink-faint); font-size: 12px; line-height: 1.5; }

/* ---------- Footer ---------- */
.footer { margin-top: 40px; border-top: 1px solid var(--line-soft); background: var(--bg1); padding: 52px 0 34px; }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 34px; }
.footer-brand { display: flex; flex-direction: column; gap: 10px; }
.footer-brand .fb-name { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 20px; }
.footer-brand .fb-name img { width: 26px; height: 26px; }
.footer-brand p { color: var(--ink-faint); font-size: 13.5px; }
.footer h4 {
  font-family: var(--font-ui); font-size: 13px; letter-spacing: .1em;
  color: var(--ink-dim); margin-bottom: 14px; font-weight: 600;
}
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.footer ul a { color: var(--ink-faint); font-size: 14px; }
.footer ul a:hover { color: var(--ink); }
.footer-note { color: var(--ink-faint); font-size: 12.5px; line-height: 1.7; }
.footer-bottom {
  max-width: var(--max-w); margin: 40px auto 0; padding: 20px 28px 0;
  border-top: 1px solid var(--line-soft);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--ink-faint); font-size: 12.5px;
}
.footer-bottom a { color: var(--ink-faint); }
.footer-bottom a:hover { color: var(--moon-soft); }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .ink-line i { transform: scaleX(1); animation: none !important; }
  .ink-line.snapped i::after { transform: translateY(-50%) scale(1); }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1060px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .bento { grid-template-columns: 1fr 1fr; }
  .b-card.wide { grid-column: span 2; }
  .stack-band { grid-column: span 2; }
  .arch-wrap { grid-template-columns: 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .friends-main { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .nav-links, .nav .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-drawer { display: none; }
  .nav-drawer.open { display: flex; }
  .hero { padding-top: calc(var(--nav-h) + 40px); }
  .hero-stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .container, .hero-inner, .nav-inner { padding-left: 20px; padding-right: 20px; }
  .bento, .friends-main, .footer-inner { grid-template-columns: 1fr; }
  .b-card.wide, .stack-band { grid-column: span 1; }
  .hero-actions .btn { flex: 1; justify-content: center; }
  .stack-band .sb-note { margin-left: 0; }
}