*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#f5f3f7;
  --surface:rgba(255,255,255,.72);
  --ink:#181528;
  --ink-2:#413a55;
  --muted:#8b859c;
  --line:rgba(24,21,40,.08);
  --line-strong:rgba(24,21,40,.14);
  --brand:#6c5ce7;
  --brand-deep:#4c3fd6;
  --brand-light:#8b7bff;
  --brand-soft:rgba(108,92,231,.10);
  --accent:#f0a04b;
  --accent-deep:#b45309;
  --ok:#22c55e;
  --danger:#ef4444;
  --r-md:16px;
  --r-lg:22px;
  --r-xl:30px;
  --sh-1:0 1px 2px rgba(24,21,40,.04),0 4px 12px -6px rgba(24,21,40,.08);
  --sh-2:0 14px 34px -16px rgba(24,21,40,.22);
  --sh-3:0 40px 80px -32px rgba(24,21,40,.30);
  --ease:cubic-bezier(.22,1,.36,1);
}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  color:var(--ink);
  line-height:1.65;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  background:
    radial-gradient(1200px 620px at 8% -12%, rgba(108,92,231,.16), transparent 62%),
    radial-gradient(900px 520px at 96% -4%, rgba(240,160,75,.14), transparent 58%),
    radial-gradient(900px 700px at 50% 112%, rgba(108,92,231,.10), transparent 62%),
    var(--bg);
  background-attachment:fixed;
}

img,video{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
::selection{background:rgba(108,92,231,.22)}

.wrap{width:min(1200px,calc(100% - 2.5rem));margin-inline:auto}

/* ============================================================
   语言显示控制
   ============================================================ */
body.lang-zh [data-en]:not(option) { display: none !important; }
body.lang-en [data-zh]:not(option) { display: none !important; }

.lang-switch{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.4rem;
  height:36px;
  padding:0 .85rem;
  border-radius:10px;
  background:rgba(255,255,255,.78);
  border:1px solid var(--line-strong);
  color:var(--ink-2);
  cursor:pointer;
  font-weight:700;
  font-size:.76rem;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:all .22s var(--ease);
  -webkit-tap-highlight-color:transparent;
}
.lang-switch:hover{
  background:#fff;
  border-color:rgba(108,92,231,.45);
  color:var(--brand-deep);
  transform:translateY(-1px);
  box-shadow:0 8px 18px -10px rgba(108,92,231,.75);
}
.lang-switch:hover .ico{transform:rotate(20deg)}
.lang-switch:active{transform:scale(.97)}
.lang-switch:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.lang-switch .ico{
  width:15px;height:15px;flex:none;
  color:var(--brand-deep);
  transition:transform .35s var(--ease);
}
.lang-switch .lbl{
  line-height:1;
  background:linear-gradient(140deg,var(--brand),#b06ab3 70%,var(--accent));
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
  font-weight:800;
  font-size:.78rem;
}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,245,250,.72);
  backdrop-filter:blur(18px) saturate(180%);
  -webkit-backdrop-filter:blur(18px) saturate(180%);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 0}

.logo{display:flex;align-items:center;gap:.65rem}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  box-shadow:0 8px 18px -8px rgba(108,92,231,.9);
}
.logo-mark svg{width:21px;height:21px}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text b{font-size:1rem;font-weight:650;letter-spacing:-.01em}
.logo-text small{font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:600}

.nav-actions{display:flex;align-items:center;gap:.7rem}
.nav-links{display:flex;align-items:center;gap:.2rem}
.nav-links a{
  padding:.5rem .85rem;border-radius:10px;font-size:.87rem;color:var(--ink-2);
  transition:background .2s,color .2s;
}
.nav-links a:hover{background:var(--brand-soft);color:var(--brand-deep)}
.nav-links a.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:550}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.62rem 1.2rem;border-radius:12px;border:1px solid transparent;
  font-size:.88rem;font-weight:550;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .25s,background .2s,border-color .2s,color .2s;
  -webkit-tap-highlight-color:transparent;
}
.btn:active:not(:disabled){transform:scale(.97)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-sm{padding:.48rem .95rem;font-size:.82rem;border-radius:10px}
.btn-lg{padding:.85rem 1.75rem;font-size:.95rem;border-radius:14px}
.btn-primary{
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  color:#fff;box-shadow:0 10px 24px -12px rgba(108,92,231,.95);
}
.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 16px 32px -14px rgba(108,92,231,1)}
.btn-ghost{background:rgba(255,255,255,.72);border-color:var(--line-strong);color:var(--ink-2)}
.btn-ghost:hover{background:#fff;border-color:rgba(108,92,231,.35);color:var(--brand-deep)}
.btn-block{width:100%;padding:.9rem 1.2rem;font-size:.98rem;border-radius:14px}

/* ============ 页头 ============ */
.page-head{padding:3.5rem 0 2rem;text-align:center}
.page-head .eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.35rem .95rem;border-radius:999px;
  background:rgba(255,255,255,.72);
  border:1px solid var(--line-strong);
  font-size:.78rem;color:var(--ink-2);
  box-shadow:var(--sh-1);
}
.page-head h1{
  margin-top:1.35rem;
  font-size:clamp(1.9rem,5vw,2.75rem);
  line-height:1.15;letter-spacing:-.035em;font-weight:730;
}
.page-head h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--brand),#b06ab3 65%,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-head p{
  margin:1rem auto 0;max-width:36rem;
  color:var(--muted);font-size:.95rem;
}

/* ============ 主体布局 ============ */
.appeal-section{padding:.5rem 0 2.75rem}

.appeal-layout{
  display:grid;gap:1.75rem;align-items:start;
}
@media(min-width:1000px){
  .appeal-layout{grid-template-columns:1.15fr .85fr;gap:2rem}
}

/* ============ 表单区 ============ */
.panel{
  background:var(--surface);
  backdrop-filter:blur(20px) saturate(165%);
  -webkit-backdrop-filter:blur(20px) saturate(165%);
  border:1px solid rgba(255,255,255,.85);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-2);
  padding:clamp(1.5rem,3.5vw,2.5rem);
  min-width:0;
}

.form-title{
  font-size:1.1rem;font-weight:680;letter-spacing:-.01em;
  margin-bottom:1.5rem;display:flex;align-items:center;gap:.55rem;
}

.field{display:flex;flex-direction:column;gap:.45rem;margin-bottom:1.1rem}
.field label{font-size:.82rem;font-weight:600;color:var(--ink-2)}
.req{color:var(--danger)}
.field-row{display:grid;gap:1rem}
@media(min-width:560px){.field-row{grid-template-columns:1fr 1fr}}

.input,.select,.textarea{
  width:100%;padding:.75rem 1rem;border-radius:12px;
  background:rgba(255,255,255,.88);
  border:1px solid var(--line-strong);
  font-size:.9rem;color:var(--ink);outline:none;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.input::placeholder,.textarea::placeholder{color:#b3aec2}
.input:focus,.select:focus,.textarea:focus{
  background:#fff;border-color:rgba(108,92,231,.55);
  box-shadow:0 0 0 4px rgba(108,92,231,.12);
}
.textarea{resize:vertical;min-height:110px;line-height:1.65}

/* ★ 错误状态：给字段加 .field-error 类 */
.input.field-error,
.select.field-error,
.textarea.field-error{
  border-color:var(--danger) !important;
  box-shadow:0 0 0 4px rgba(239,68,68,.12) !important;
  animation:shake .35s var(--ease);
}
@keyframes shake{
  0%,100%{transform:translateX(0)}
  25%{transform:translateX(-4px)}
  75%{transform:translateX(4px)}
}

.select{
  appearance:none;
  -webkit-appearance:none;
  cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238b859c' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right .9rem center;
  background-size:16px;
  padding-right:2.4rem;
}

.select option{
  background:#fff;
  color:var(--ink);
  padding:.5rem;
  font-size:.9rem;
}

/* ============================================================
   联系方式组合输入（类型选择 + 输入框）
   ============================================================ */
.contact-group{
  display:flex;
  width:100%;
  border-radius:12px;
  transition:box-shadow .2s;
}

.contact-group .select{
  flex:0 0 auto;
  width:auto;
  min-width:96px;
  padding:.75rem 1.9rem .75rem .85rem;
  border-radius:12px 0 0 12px;
  border-right:none;
  font-size:.85rem;
  background-position:right .7rem center;
}
.contact-group .input{
  flex:1;
  min-width:0;
  border-radius:0 12px 12px 0;
}

.contact-group:focus-within{
  box-shadow:0 0 0 4px rgba(108,92,231,.12);
  border-radius:12px;
}
.contact-group:focus-within .select,
.contact-group:focus-within .input{
  background:#fff;
  border-color:rgba(108,92,231,.55);
  box-shadow:none;
}
.contact-group .select:focus,
.contact-group .input:focus{
  border-color:rgba(108,92,231,.55);
}
.contact-group .input:focus{
  border-left-color:var(--line-strong);
}

/* 拖拽上传 */
.dropzone{
  border:1.5px dashed rgba(108,92,231,.38);
  border-radius:var(--r-md);
  padding:1.5rem 1rem;text-align:center;
  background:rgba(108,92,231,.045);
  cursor:pointer;transition:all .22s var(--ease);
}
.dropzone:hover,.dropzone.dragover{
  border-color:var(--brand);background:rgba(108,92,231,.1);
  transform:translateY(-1px);
}
.dropzone svg{width:26px;height:26px;color:var(--brand);margin:0 auto .5rem}
.dropzone p{font-size:.84rem;color:var(--ink-2)}
.dropzone p b{color:var(--brand-deep);font-weight:600}
.dropzone .tiny{font-size:.72rem;color:var(--muted);margin-top:.3rem}

.file-list{display:flex;flex-direction:column;gap:.4rem;margin-top:.6rem}
.file-item{
  display:flex;align-items:center;gap:.6rem;
  padding:.55rem .8rem;border-radius:10px;
  background:rgba(255,255,255,.92);border:1px solid var(--line-strong);
  font-size:.8rem;
}
.file-item .name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-item .size{color:var(--muted);font-size:.72rem;flex:none}
.file-item button{
  background:none;border:none;cursor:pointer;color:var(--muted);
  font-size:1.1rem;line-height:1;padding:0 .2rem;flex:none;
  transition:color .2s;
}
.file-item button:hover{color:var(--danger)}

/* 复选框 */
.check{
  display:flex;gap:.65rem;align-items:flex-start;
  font-size:.8rem;color:var(--ink-2);margin-bottom:.85rem;line-height:1.65;
}
.check input{
  appearance:none;-webkit-appearance:none;
  width:17px;height:17px;flex:none;margin-top:.2rem;
  border-radius:5px;border:1.5px solid rgba(108,92,231,.38);
  background:#fff;cursor:pointer;position:relative;
  transition:background .18s,border-color .18s;
}
.check input:checked{background:linear-gradient(140deg,var(--brand),var(--brand-light));border-color:transparent}
.check input:checked::after{
  content:"";position:absolute;left:5px;top:1.5px;width:4px;height:9px;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg);
}
.check input.field-error{
  border-color:var(--danger) !important;
  box-shadow:0 0 0 4px rgba(239,68,68,.12) !important;
  animation:shake .35s var(--ease);
}
.check label{cursor:pointer}
.check a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:2px}

/* ============ 侧栏说明 ============ */
.guide-card{
  background:rgba(255,255,255,.72);
  border:1px solid rgba(255,255,255,.95);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  overflow:hidden;
  position:sticky;
  top:5.5rem;
}
@media(max-width:999px){.guide-card{position:static}}

.guide-head{
  padding:1.35rem 1.5rem 1.1rem;
  border-bottom:1px dashed var(--line-strong);
  display:flex;align-items:center;gap:.65rem;
}
.guide-head .gi{
  width:38px;height:38px;flex:none;border-radius:12px;
  display:grid;place-items:center;font-size:1.05rem;
  background:linear-gradient(140deg,rgba(108,92,231,.16),rgba(240,160,75,.18));
}
.guide-head h3{font-size:1rem;font-weight:680;letter-spacing:-.01em}
.guide-head p{font-size:.74rem;color:var(--muted);margin-top:.1rem}

.guide-body{padding:.4rem 1.5rem 1.4rem}

.steps-list{
  list-style:none;padding:0;margin:1rem 0 0;
  display:flex;flex-direction:column;gap:.95rem;
  counter-reset:step;
}
.steps-list li{
  position:relative;
  padding-left:2.2rem;
  font-size:.84rem;color:var(--ink-2);line-height:1.7;
}
.steps-list li::before{
  counter-increment:step;
  content:counter(step);
  position:absolute;left:0;top:.05em;
  width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;
  font-size:.72rem;font-weight:700;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  color:#fff;
  box-shadow:0 6px 14px -8px rgba(108,92,231,.9);
}
.steps-list li b{display:block;font-size:.88rem;font-weight:650;color:var(--ink);margin-bottom:.1rem}
.steps-list li span{font-size:.79rem;color:var(--muted);line-height:1.65}

.types-list{
  list-style:none;padding:0;margin:.5rem 0 1.25rem;
  display:flex;flex-direction:column;gap:.5rem;
}
.types-list li{
  display:flex;gap:.65rem;align-items:flex-start;
  padding:.75rem .95rem;
  border-radius:12px;
  background:rgba(108,92,231,.06);
  border:1px solid rgba(108,92,231,.14);
  font-size:.83rem;color:var(--ink-2);line-height:1.65;
}
.types-list li::before{
  content:"·";color:var(--brand);font-weight:800;flex:none;
  font-size:1.2rem;line-height:1;
}

.guide-tip{
  padding:1rem 1.1rem;
  border-radius:14px;
  background:
    radial-gradient(380px 160px at 88% -30%, rgba(240,160,75,.22), transparent 70%),
    rgba(240,160,75,.08);
  border:1px solid rgba(240,160,75,.24);
  font-size:.8rem;color:var(--ink-2);line-height:1.75;
  margin-top:1.25rem;
}
.guide-tip strong{color:var(--accent-deep);font-weight:700}

.guide-foot{
  padding:1.1rem 1.5rem 1.35rem;
  background:rgba(108,92,231,.045);
  border-top:1px solid var(--line);
  font-size:.78rem;color:var(--muted);line-height:1.75;
}
.guide-foot a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:2px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:1rem;border-top:1px solid var(--line);
  padding:2.5rem 0 2.75rem;text-align:center;
}
.footer-brand{display:inline-flex;align-items:center;gap:.55rem;margin-bottom:1rem}
.footer-brand .logo-mark{width:30px;height:30px;border-radius:9px}
.footer-brand .logo-mark svg{width:17px;height:17px}
.footer-brand b{font-size:.92rem;font-weight:650}
.footer-note{font-size:.82rem;color:var(--muted);margin-bottom:1.1rem}
.footer-links{display:flex;flex-wrap:wrap;gap:.35rem 1.4rem;justify-content:center;margin-bottom:1.25rem}
.footer-links a{font-size:.82rem;color:var(--ink-2);transition:color .2s}
.footer-links a:hover{color:var(--brand-deep)}
.copyright{font-size:.75rem;color:#a49eb4}

/* ============ Toast ============ */
.toast{
  position:fixed;left:50%;bottom:2rem;z-index:300;
  transform:translate(-50%,140%);
  max-width:min(90vw,420px);
  padding:.8rem 1.3rem;border-radius:13px;
  background:var(--ink);color:#fff;
  font-size:.85rem;line-height:1.5;text-align:center;
  box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:transform .4s var(--ease), opacity .3s ease, visibility .3s;
}
.toast.show{
  transform:translate(-50%,0);
  opacity:1;visibility:visible;pointer-events:auto;
}
.toast.toast-error{background:#b91c1c}

/* ============ 响应式 ============ */
@media(max-width:900px){.nav-links{display:none}}

@media(max-width:767px){
  .wrap{width:calc(100% - 1.75rem)}
  .page-head{padding:2.5rem 0 1.5rem}
  .page-head h1{font-size:1.75rem}
  .page-head p{font-size:.88rem}
  .appeal-section{padding:.25rem 0 2rem}
  .panel{padding:1.25rem;border-radius:var(--r-lg)}
  .guide-card{border-radius:var(--r-lg)}
  .guide-head,.guide-body,.guide-foot{padding-left:1.25rem;padding-right:1.25rem}
  .footer-links{gap:.3rem 1rem}

  .contact-group .select{
    min-width:82px;
    padding:.7rem 1.75rem .7rem .7rem;
    font-size:.8rem;
    background-position:right .6rem center;
  }
  .contact-group .input{padding:.7rem .85rem;font-size:.88rem}

  .lang-switch{
    height:32px;
    padding:0 .7rem;
    gap:.3rem;
    border-radius:9px;
  }
  .lang-switch .ico{width:14px;height:14px}
  .lang-switch .lbl{font-size:.72rem}
}

@media(max-width:380px){
  .wrap{width:calc(100% - 1.25rem)}
  .page-head h1{font-size:1.55rem}
  .panel{padding:1rem}

  .contact-group .select{
    min-width:72px;
    padding:.65rem 1.6rem .65rem .6rem;
    font-size:.76rem;
  }
  .contact-group .input{padding:.65rem .7rem;font-size:.85rem}

  .lang-switch{
    height:30px;
    padding:0 .6rem;
    border-radius:8px;
  }
  .lang-switch .ico{width:13px;height:13px}
  .lang-switch .lbl{font-size:.68rem}
}

.field-prefilled {
  animation: fieldPrefillPulse 1.6s ease;
}
@keyframes fieldPrefillPulse {
  0%   { box-shadow: 0 0 0 0   rgba(108, 92, 231, 0); }
  30%  { box-shadow: 0 0 0 4px rgba(108, 92, 231, .35); }
  100% { box-shadow: 0 0 0 0   rgba(108, 92, 231, 0); }
}

/* ===== 举报页：红色主题微调 ===== */
.page-report .eyebrow      { color: #e74c3c; }
.page-report .page-head em { color: #e74c3c; font-style: normal; }
.page-report .btn-primary  { background: #e74c3c; }
.page-report .btn-primary:hover { background: #c0392b; }
.page-report .guide-head .gi { color: #e74c3c; }

.field-error {
  border-color: #e74c3c !important;
  box-shadow: 0 0 0 3px rgba(231, 76, 60, .15) !important;
  animation: fieldErrorShake .35s ease;
}
@keyframes fieldErrorShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}