/* BuyForMe 代购中国 — framework-free SPA */
:root{
  --paper:#f5f1e7;--paper-2:#efe9dc;--card:#fffdf7;--ink:#171a15;--ink-2:#4c524a;--ink-3:#7a8075;
  --line:#ddd5c3;--red:#b23a2a;--red-d:#8e2c1f;--jade:#2f5d50;--ok:#2f6b45;--warn:#9a6b14;--no:#a83226;
  --dark:#161a15;--dark-2:#1f241d;--radius:14px;--shadow:0 18px 50px -24px rgba(30,28,20,.28);--maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,"PingFang SC",sans-serif;background:var(--paper);color:var(--ink);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Fraunces',Georgia,serif;font-weight:600;line-height:1.1;letter-spacing:-.01em}
em{font-style:italic;color:var(--red);font-family:'Fraunces',serif}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.wrap.narrow{max-width:860px}
.page{padding:48px 0 90px;min-height:70vh}
.kicker{font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--red);margin-bottom:14px}
.page-title{font-size:clamp(26px,3.6vw,40px);margin-bottom:10px}
.page-sub{color:var(--ink-2);margin-bottom:30px;max-width:660px}
.muted{color:var(--ink-3);font-size:13px}
code{background:#e8e3d4;padding:1px 6px;border-radius:4px;font-size:12.5px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;border-radius:10px;padding:13px 22px;border:1.5px solid transparent;transition:background .2s,transform .1s;background:var(--ink);color:#f5f2ea}
.btn:hover{background:#2c322a}
.btn:active{transform:translateY(1px)}
.btn-red{background:var(--red);color:#fff8f3}.btn-red:hover{background:var(--red-d)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--ink)}
.btn-sm{padding:8px 14px;font-size:13px;border-radius:8px}
.btn-block{width:100%;margin-top:14px}
.btn:disabled{opacity:.45;cursor:not-allowed}

.input,select,textarea{width:100%;padding:11px 13px;border:1.5px solid var(--line);border-radius:9px;font-family:inherit;font-size:15px;background:#fff;color:var(--ink);outline:none}
.input:focus,select:focus,textarea:focus{border-color:var(--red)}
label.fld{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:14px}
label.fld .input,label.fld select,label.fld textarea{margin-top:6px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.row3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.form-error{background:#f8e4e0;border:1px solid #ddaea4;color:var(--red-d);border-radius:10px;padding:12px 15px;font-size:14px;margin-bottom:16px}
.form-note{background:#eef4ee;border:1px solid #c4d8c6;color:var(--ok);border-radius:10px;padding:12px 15px;font-size:14px;margin-bottom:16px}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:22px;padding:13px 32px;background:rgba(245,241,231,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-family:'Fraunces',serif;font-weight:700;font-size:19px}
.brand-logo{height:48px;width:auto;display:block}
@media (max-width:640px){.brand-logo{height:38px}}
.seal{display:grid;place-items:center;width:32px;height:32px;border-radius:8px;background:var(--red);color:#fdf4ee;font-family:'Noto Serif SC',serif;font-size:17px;transform:rotate(-3deg)}
.nav-links{display:flex;gap:20px;font-size:13.5px;color:var(--ink-2);margin-left:auto}
.nav-links a:hover{color:var(--red)}
.nav-user{font-size:13px;color:var(--ink-2);display:flex;align-items:center;gap:12px}
.lang-sel{width:auto;padding:6px 8px;font-size:13px;border-radius:8px;cursor:pointer}
.nav-email{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* hero */
.hero{position:relative;overflow:hidden;padding:80px 0 70px;border-bottom:1px solid var(--line)}
.hero h1{font-size:clamp(34px,5.4vw,62px);margin:18px 0 20px}
.hero .lede{font-size:17px;color:var(--ink-2);max-width:630px;margin-bottom:32px}
.hero-glyph{position:absolute;right:-30px;top:46%;transform:translateY(-50%);font-family:'Noto Serif SC',serif;font-weight:700;font-size:420px;color:rgba(178,58,42,.055);pointer-events:none}
.linkbox{display:flex;gap:10px;background:var(--card);border:1.5px solid var(--line);border-radius:16px;padding:9px;max-width:760px;box-shadow:var(--shadow)}
.linkbox:focus-within{border-color:var(--red)}
.linkbox input{flex:1;border:0;background:transparent;padding:10px 14px;font-size:15.5px;outline:none;min-width:0}
.trust{list-style:none;display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:38px;font-size:13.5px;color:var(--ink-2)}
.trust li::before{content:"";display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--jade);margin-right:8px;transform:rotate(45deg)}
.section{padding:70px 0}
.section.dark{background:var(--dark);color:#eef0ea}
.section.paper{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{font-size:clamp(26px,3.6vw,42px);margin-bottom:14px}
.section .sub{color:var(--ink-2);max-width:640px;margin-bottom:34px}
.section.dark .sub{color:#b9bfb3}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cards.three{grid-template-columns:repeat(3,1fr)}
.s-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:transform .2s,box-shadow .2s}
.s-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.s-card .ph{aspect-ratio:1/.8;overflow:hidden}
.s-card .ph img{width:100%;height:100%;object-fit:cover}
.s-card .b{padding:16px}
.s-card h3{font-size:17px}.s-card .zh{font-family:'Noto Serif SC',serif;font-size:12px;color:var(--ink-3)}
.s-card p{font-size:13px;color:var(--ink-2);margin-top:6px}
.risk{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-top:10px}
.risk::before{content:"";width:7px;height:7px;border-radius:50%}
.risk.high::before{background:var(--warn)}.risk.critical::before{background:var(--no)}.risk.medium::before{background:var(--jade)}

.console{margin-top:30px;border:1px solid #333a32;border-radius:16px;overflow:hidden;background:var(--dark-2)}
.console-tabs{display:flex;flex-wrap:wrap;border-bottom:1px solid #333a32;background:#131712}
.console-tab{appearance:none;background:none;border:0;color:#aeb4ab;font:inherit;font-size:13.5px;font-weight:600;padding:14px 20px;cursor:pointer;border-bottom:2px solid transparent}
.console-tab.active{color:#fff;border-bottom-color:var(--red)}
.console-body{padding:26px 28px}
.cc-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.cc-col{background:#131712;border:1px solid #2c322b;border-radius:12px;padding:16px}
.cc-col h4{font-size:11px;letter-spacing:.13em;text-transform:uppercase;margin-bottom:12px}
.cc-allowed h4{color:#7fc79b}.cc-restricted h4{color:#e2b768}.cc-prohibited h4{color:#e88a80}
.cc-item{padding:9px 0;border-bottom:1px dashed #2c322b;font-size:13px}
.cc-item:last-child{border:0}
.cc-item b{color:#e9ece5;display:block;font-size:13px}
.cc-item span{color:#9aa398;font-size:12px;display:block}
.cc-empty{color:#79807a;font-size:13px;font-style:italic}
.cc-reply{margin-top:14px;border-left:3px solid var(--red);background:#131712;padding:14px 18px;border-radius:0 10px 10px 0;font-size:13px;color:#c9cfc4;font-style:italic}

/* tables/cards common */
.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px;margin-bottom:18px}
.panel h3{font-size:19px;margin-bottom:14px}
table.tbl{width:100%;border-collapse:collapse;font-size:14px}
table.tbl th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3);padding:9px 10px;border-bottom:1.5px solid var(--line)}
table.tbl td{padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:0}
.total-row td{border-top:2px solid var(--ink);border-bottom:0!important;font-weight:700;font-size:16px;font-family:'Fraunces',serif;padding-top:13px!important}
.badge{display:inline-block;font-size:11px;font-weight:700;padding:4px 10px;border-radius:999px;border:1px solid}
.b-std{background:#eef1ea;color:var(--jade);border-color:#cfd8cf}
.b-warn{background:#fbf3df;color:var(--warn);border-color:#dcbf7a}
.b-red{background:#f7e6e1;color:var(--red-d);border-color:#e7cbbf}
.b-dark{background:#e7e9e3;color:var(--ink);border-color:#c8ccc2}
.b-ok{background:#e6f1e8;color:var(--ok);border-color:#8db897}

/* progress stepper */
.steps{display:flex;gap:6px;margin:22px 0}
.steps .st{flex:1;text-align:center;font-size:11.5px;font-weight:600;color:var(--ink-3);border:1.5px solid var(--line);border-radius:8px;padding:8px 4px;background:#fff}
.steps .st.done{background:var(--ink);color:#fff;border-color:var(--ink)}
.steps .st.cur{background:var(--red);color:#fff;border-color:var(--red)}

/* QC photos */
.qc-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.qc-grid .ph{aspect-ratio:1;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.qc-grid img{width:100%;height:100%;object-fit:cover}

/* shipping */
.ship-line{border:1.5px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:10px;display:grid;grid-template-columns:1fr auto;gap:4px 14px;align-items:center;background:#fff}
.ship-line.pick{border-color:var(--red)}
.ship-line.off{opacity:.5}
.ship-line h4{font-size:15.5px;font-family:'Fraunces',serif}
.ship-line .price{font-family:'Fraunces',serif;font-size:23px;font-weight:600;text-align:right}
.ship-line .meta{font-size:12px;color:var(--ink-3)}
.tag{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;padding:2px 8px;border-radius:999px;margin-left:8px;background:#eef1ea;color:var(--jade);border:1px solid #cfd8cf}
.tag.slow{background:#f6efdf;color:var(--warn);border-color:#e5d3a9}

/* timeline */
.tl{list-style:none;border-left:2px solid var(--line);margin-left:8px;padding-left:24px}
.tl li{position:relative;padding:0 0 22px}
.tl li::before{content:"";position:absolute;left:-31px;top:3px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--ink-3)}
.tl li.done::before{background:var(--jade);border-color:var(--jade)}
.tl li.cur::before{background:var(--red);border-color:var(--red);box-shadow:0 0 0 4px rgba(178,58,42,.18)}
.tl .t{font-weight:600;font-size:14px}.tl .d{color:var(--ink-3);font-size:12.5px}

/* staff */
.staff-grid{display:grid;grid-template-columns:210px 1fr;gap:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--card)}
.staff-side{background:var(--paper-2);padding:18px;font-size:13.5px}
.staff-side a{display:block;padding:8px 10px;border-radius:8px;color:var(--ink-2);cursor:pointer}
.staff-side a.on,.staff-side a:hover{background:#fff;color:var(--ink);font-weight:600}
.staff-main{padding:22px 24px}
.audit{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--ink-2);background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px 14px;max-height:200px;overflow:auto}

/* toast */
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:13px 22px;border-radius:10px;font-size:14px;z-index:99;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.toast.err{background:var(--red-d)}

/* auth */
.auth-box{max-width:440px;margin:40px auto}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;font-family:'Fraunces',serif;font-size:18px;font-weight:600;padding:14px 36px 14px 0;position:relative;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:12px;font-size:22px;color:var(--red);font-weight:400}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 0 18px;color:var(--ink-2);font-size:14px}

@media(max-width:960px){
  .cards,.cards.three{grid-template-columns:repeat(2,1fr)}
  .cc-cols{grid-template-columns:1fr}
  .row2,.staff-grid{grid-template-columns:1fr}
  .row3{grid-template-columns:1fr}
  .nav-links{display:none}
}
@media(max-width:640px){
  .cards,.cards.three{grid-template-columns:1fr}
  .qc-grid{grid-template-columns:repeat(3,1fr)}
  .row2{grid-template-columns:1fr}
  .linkbox{flex-direction:column}
  .steps{flex-wrap:wrap}.steps .st{min-width:30%}
  .hero-glyph{font-size:260px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* ============ support widget (FAB + chat card) ============ */
.sd-fab{position:fixed;z-index:900;right:24px;bottom:24px;width:60px;height:60px;border-radius:50%;border:none;
  background:var(--red);color:#fff;cursor:pointer;display:grid;place-items:center;
  box-shadow:0 12px 30px -8px rgba(142,44,31,.6),0 4px 10px -4px rgba(142,44,31,.4);
  transition:transform .18s cubic-bezier(.34,1.56,.64,1),background .2s,opacity .2s}
.sd-fab:hover{background:var(--red-d);transform:translateY(-3px) scale(1.04)}
.sd-fab:active{transform:scale(.95)}
.sd-fab-ico{display:grid;place-items;width:30px;height:30px}
.sd-fab-ico svg{width:30px;height:30px}
.sd-fab::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--red);
  opacity:.55;animation:sd-pulse 2.4s ease-out infinite}
@keyframes sd-pulse{0%{transform:scale(1);opacity:.5}70%{transform:scale(1.55);opacity:0}100%{opacity:0}}
#sd-support.open .sd-fab{opacity:0;pointer-events:none;transform:scale(.6)}

.sd-backdrop{position:fixed;inset:0;z-index:940;background:rgba(22,26,21,.42);opacity:0;visibility:hidden;
  transition:opacity .22s,visibility .22s;display:none}
.sd-card{position:fixed;z-index:950;right:24px;bottom:24px;width:372px;max-width:calc(100vw - 32px);
  max-height:calc(100dvh - 120px);display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border-radius:20px;
  box-shadow:0 24px 70px -16px rgba(20,24,18,.45),0 6px 20px -8px rgba(20,24,18,.25);
  transform-origin:bottom right;opacity:0;transform:translateY(18px) scale(.94);pointer-events:none;
  transition:opacity .22s ease,transform .26s cubic-bezier(.34,1.4,.5,1)}
#sd-support.open .sd-card{opacity:1;transform:none;pointer-events:auto}
#sd-support.open .sd-backdrop{opacity:1;visibility:visible}

/* header */
.sd-card-head{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 14px 13px 14px;background:var(--dark);color:#f5f2ea}
.sd-agent{display:flex;align-items:center;gap:11px;min-width:0}
.sd-agent-meta{display:flex;flex-direction:column;gap:2px;min-width:0}
.sd-agent-meta strong{font-family:'Fraunces',serif;font-size:17px;line-height:1.1;letter-spacing:.01em}
.sd-agent-meta small{font-size:11.5px;color:#b8c2b4;display:flex;align-items:center;gap:6px}
.sd-close{flex:none;background:transparent;border:none;color:#c9cbbf;font-size:26px;line-height:1;cursor:pointer;
  padding:0 6px;border-radius:8px;transition:.15s}
.sd-close:hover{color:#fff;background:rgba(255,255,255,.1)}

/* avatars */
.sd-avatar{position:relative;flex:none;width:42px;height:42px;border-radius:50%;background:#fff;padding:2px;
  box-shadow:0 2px 8px rgba(0,0,0,.25)}
.sd-avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover;display:block}
.sd-avatar-dot{position:absolute;right:-1px;bottom:-1px;width:12px;height:12px;border-radius:50%;
  background:#34c759;border:2.5px solid var(--dark)}
.sd-avatar-sm{width:30px;height:30px;padding:1.5px}
.sd-avatar-sm .sd-avatar-dot{width:9px;height:9px;border-width:2px;border-color:#f3efe5}
.sd-dot{width:7px;height:7px;border-radius:50%;background:#4cc36a;
  box-shadow:0 0 0 2.5px rgba(76,195,106,.22);flex:none}

/* body */
.sd-card-body{padding:16px 14px 10px;overflow-y:auto;background:#f6f2e8;flex:1}
.sd-bubble-row{display:flex;align-items:flex-end;gap:9px;margin-bottom:14px}
.sd-bubble{background:#fff;border-radius:16px 16px 16px 4px;padding:10px 13px;max-width:86%;
  box-shadow:0 2px 10px -4px rgba(40,34,24,.18)}
.sd-bubble p{margin:0;font-size:13.5px;line-height:1.5;color:var(--ink)}
.sd-bubble-hi{font-weight:700;margin-bottom:2px !important}
.sd-start{text-align:center;font-size:11.5px;font-weight:700;letter-spacing:.06em;color:var(--ink-3);
  margin:0 0 10px;text-transform:uppercase}

/* channel CTAs */
a.sd-cta,button.sd-cta{display:flex;align-items:center;gap:11px;width:100%;text-align:left;cursor:pointer;
  padding:10px 13px;border-radius:13px;margin-bottom:9px;font-family:inherit;text-decoration:none;
  border:1px solid transparent;transition:transform .12s,background .15s,border-color .15s}
a.sd-cta:hover,button.sd-cta:hover{transform:translateY(-1px)}
.sd-cta-ico{flex:none;width:38px;height:38px;border-radius:50%;display:grid;place-items:center}
.sd-cta-ico svg{width:21px;height:21px}
.sd-cta-txt{display:flex;flex-direction:column;gap:1px;min-width:0}
.sd-cta-txt b{font-size:14.5px;font-weight:700}
.sd-cta-txt small{font-size:11px;line-height:1.3;opacity:.85}
.sd-cta-primary{background:#22c55e;color:#fff;box-shadow:0 8px 20px -8px rgba(34,197,94,.7)}
.sd-cta-primary:hover{background:#1db554}
.sd-cta-primary .sd-cta-ico{background:rgba(255,255,255,.18)}
.sd-cta-wx:not(.sd-cta-primary){background:#fff;border-color:#d8e6d6;color:#0a7a3e}
.sd-cta-wx:not(.sd-cta-primary) .sd-cta-ico{background:#07c160;color:#fff}
.sd-glyph-cn{font-family:'Noto Serif SC',serif;font-style:normal;font-size:18px;font-weight:600}
.sd-cta-email{background:#fff;border-color:var(--line);color:var(--ink)}
.sd-cta-email .sd-cta-ico{background:var(--ink);color:#fff}
button.sd-cta-on{border-color:#07c160;box-shadow:0 0 0 2px rgba(7,193,96,.18)}

/* wechat QR */
.sd-qr{margin:0 0 10px;padding:13px 10px 10px;background:#fff;border:1px solid var(--line);border-radius:14px;
  text-align:center;animation:sd-fade .2s ease}
.sd-qr img{width:200px;height:200px;object-fit:contain;border-radius:8px;display:block;margin:0 auto}
.sd-qr p{margin:8px 0 0;font-size:12px;color:var(--ink-2);line-height:1.4}
@keyframes sd-fade{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}

/* email popover */
.sd-mail{margin:0 0 10px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;
  animation:sd-fade .2s ease}
.sd-mail-addr{display:flex;flex-direction:column;gap:2px;width:100%;background:#f6f2e8;
  border:1px solid var(--line);border-radius:10px;padding:9px 12px;cursor:pointer;
  font-family:inherit;text-align:left;color:var(--ink);transition:background .15s}
.sd-mail-addr:hover{background:#efeadd}
.sd-mail-addr span{font-size:13.5px;font-weight:600;word-break:break-all}
.sd-mail-addr small{font-size:11px;color:var(--ink-3)}
.sd-mail-open{display:flex;align-items:center;gap:9px;margin-top:9px;background:var(--ink);color:#fff;
  border-radius:10px;padding:9px 12px;font-size:13px;font-weight:600;text-decoration:none;
  transition:background .15s}
.sd-mail-open:hover{background:#000}
.sd-mail-open .sd-cta-ico{width:27px;height:27px;background:rgba(255,255,255,.16)}
.sd-mail-open .sd-cta-ico svg{width:15px;height:15px}
.sd-cta-email.sd-cta-on{border-color:#cfc9bb;box-shadow:0 0 0 2px rgba(60,55,45,.12)}

/* footer */
.sd-card-foot{display:flex;align-items:center;gap:7px;padding:10px 14px 12px;background:#fff;
  border-top:1px solid var(--line);font-size:11px;color:var(--ink-3);line-height:1.45}
.sd-card-foot svg{flex:none;width:15px;height:15px}

/* ============ sourcing: link + photo + description ============ */
.src-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.src-preview{position:relative;margin-top:10px;width:fit-content}
.src-preview img{max-width:220px;max-height:160px;border-radius:10px;border:1px solid var(--line);display:block}
.src-preview-x{position:absolute;top:-9px;right:-9px;width:26px;height:26px;border-radius:50%;border:none;
  background:var(--ink);color:#fff;font-size:15px;line-height:1;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.src-done{text-align:center;padding:34px 28px}
.src-done-ic{width:64px;height:64px;border-radius:50%;background:var(--jade);color:#fff;font-size:32px;
  display:grid;place-items:center;margin:0 auto}
.src-done-mail{font-weight:700;font-size:17px;margin:6px 0 14px;color:var(--red-d)}
.sd-lightbox{position:fixed;inset:0;z-index:1200;background:rgba(18,22,17,.82);display:grid;place-items:center;padding:24px;cursor:zoom-out}
.sd-lightbox img{max-width:94vw;max-height:90vh;border-radius:10px;background:#fff;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.sd-lightbox-x{position:fixed;top:18px;right:26px;color:#fff;font-size:38px;cursor:pointer;line-height:1}
@media(max-width:960px){.src-grid{grid-template-columns:1fr;gap:22px}}
@media(max-width:640px){
  /* FAB slightly smaller on phones */
  .sd-fab{right:16px;bottom:16px;width:56px;height:56px}
  .sd-fab-ico,.sd-fab-ico svg{width:27px;height:27px}
  /* chat card becomes a near-full-width bottom sheet; backdrop dims the page */
  .sd-backdrop{display:block}
  .sd-card{left:12px;right:12px;bottom:12px;width:auto;max-width:none;
    max-height:calc(100dvh - 88px);transform-origin:bottom center;
    transform:translateY(24px) scale(.98)}
  #sd-support.open .sd-card{transform:none}
}

/* PayPal payment return / awaiting-payment states */
.pp-await{border:1px solid var(--red);background:#fdf6f3;margin-bottom:18px}
.pp-status{text-align:center;padding:40px 28px}
.pp-status h2{margin:14px 0 8px}
.pp-spin{width:38px;height:38px;margin:0 auto;border:3px solid var(--line);border-top-color:var(--red);border-radius:50%;animation:ppspin .8s linear infinite}
.pp-spin-slow{animation-duration:1.4s;opacity:.6}
@keyframes ppspin{to{transform:rotate(360deg)}}
.pp-tick{width:52px;height:52px;margin:0 auto;border-radius:50%;background:var(--ok);color:#fff;font-size:28px;line-height:52px;text-align:center}
.pp-ok .btn{margin-top:16px}