:root{--portal-bg: #f5f7fb;--portal-surface: #ffffff;--portal-primary: #2f6bff;--portal-primary-hover: #2458d6;--portal-primary-soft: #eef4ff;--portal-student-blue: #155dfc;--portal-student-blue-deep: #1447e6;--portal-student-yellow: #ffdf20;--portal-text: #1f2329;--portal-text-secondary: #646a73;--portal-text-tertiary: #86909c;--portal-border: #e5e6eb;--portal-border-strong: #d8dee8;--portal-error-bg: #fff1f0;--portal-error-border: #ffd1cc;--portal-error-text: #c94a4a;--portal-shadow: 0 14PX 34PX rgba(31, 35, 41, .08)}html,body,#app,.taro_router,.taro_page{min-height:100%;margin:0;background:var(--portal-bg);color:var(--portal-text);font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Arial,sans-serif}body{overflow-x:hidden}.portal-screen{min-height:100vh;width:100%;max-width:100vw;padding:28PX 14PX;box-sizing:border-box;overflow-x:hidden;background:var(--portal-bg)}.portal-screen--student{min-height:100dvh;padding:0;background:#f8fafc}.portal-shell{width:100%;max-width:424PX;min-height:calc(100vh - 56PX);margin:0 auto;display:flex;align-items:center;justify-content:center;box-sizing:border-box}.portal-shell--student{display:block;width:100%;max-width:none;min-height:100dvh;padding:0 0 32PX;overflow-x:hidden}.portal-student-hero{min-height:245PX;margin:0;padding:22PX 20PX 72PX;box-sizing:border-box;border-radius:0 0 28PX 28PX;background:linear-gradient(135deg,var(--portal-student-blue) 0%,var(--portal-student-blue-deep) 100%);color:#fff;box-shadow:0 16PX 32PX #1447e62e}.portal-student-hero__title{margin-top:44PX;color:#fff;font-size:30PX;font-weight:900;line-height:1.18;letter-spacing:0}.portal-student-hero__copy{max-width:280PX;margin-top:10PX;color:#bedbff;font-size:15PX;line-height:1.55}.portal-student-hero__strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8PX;margin-top:22PX}.portal-student-hero__stripItem{min-width:0;min-height:42PX;display:flex;align-items:center;justify-content:center;border-radius:14PX;background:#ffffff24;border:1PX solid rgba(255,255,255,.2);color:#fff;font-size:13PX;font-weight:800}.portal-form-card{width:100%;padding:28PX;border:1PX solid var(--portal-border);border-radius:8PX;background:var(--portal-surface);box-shadow:var(--portal-shadow);box-sizing:border-box}.portal-form-card--student{position:relative;z-index:1;width:min(100% - 32PX,430PX);margin:-48PX auto 0;padding:22PX 18PX 20PX;border:1PX solid #e2e8f0;border-radius:24PX;background:#fff;box-shadow:0 12PX 30PX #0f172b1a}.portal-brand{display:flex;align-items:center;gap:12PX;margin-bottom:24PX}.portal-mark{width:42PX;height:42PX;display:flex;align-items:center;justify-content:center;border-radius:8PX;background:var(--portal-primary-soft);color:var(--portal-primary);font-size:16PX;font-weight:800;letter-spacing:0;flex:0 0 auto}.portal-title{color:var(--portal-text);font-size:21PX;font-weight:800;line-height:1.2;letter-spacing:0}.portal-copy{margin-top:3PX;color:var(--portal-text-secondary);font-size:13PX;line-height:1.45}.portal-entry-label{margin-bottom:18PX;color:var(--portal-text);font-size:24PX;font-weight:800;line-height:1.25;letter-spacing:0}.portal-organization-chip{min-height:42PX;padding:10PX 12PX;display:flex;align-items:center;justify-content:space-between;gap:12PX;border:1PX solid #c8d8ff;border-radius:8PX;background:var(--portal-primary-soft);box-sizing:border-box}.portal-form-card--student .portal-organization-chip{min-height:48PX;border-color:#bfdbfe;border-radius:16PX;background:#eff6ff}.portal-organization-chip--platform{border-color:var(--portal-border-strong);background:#f7f8fa}.portal-organization-chip__label{color:var(--portal-text-tertiary);font-size:13PX;line-height:1.4}.portal-organization-chip__value{min-width:0;color:var(--portal-text);font-size:14PX;font-weight:800;line-height:1.4;text-align:right;word-break:break-word}.portal-field{margin-top:18PX}.portal-form-card--student .portal-field{margin-top:16PX}.portal-field--first{margin-top:0}.portal-field__label{margin-bottom:7PX;color:var(--portal-text);font-size:13PX;font-weight:700;line-height:1.4}.portal-input{width:100%;height:46PX;padding:0 12PX;border:1PX solid var(--portal-border-strong);border-radius:8PX;background:var(--portal-surface);color:var(--portal-text);font-size:14PX;line-height:46PX;box-sizing:border-box;transition:border-color .16s ease,box-shadow .16s ease}.portal-form-card--student .portal-input{height:50PX;padding:0 14PX;border-color:#dbe4f0;border-radius:16PX;background:#f8fafc;color:#0f172b;font-size:15PX;line-height:50PX}.portal-form-card--student .portal-input:focus-within{border-color:var(--portal-student-blue);box-shadow:0 0 0 3PX #155dfc1f}.portal-input:focus-within{border-color:var(--portal-primary);box-shadow:0 0 0 3PX #2f6bff1f}.portal-input taro-input-core,.portal-input .weui-input{width:100%;height:100%;min-height:44PX;padding:0;border:0;outline:none;background:transparent;color:var(--portal-text);font-size:14PX;line-height:44PX}.portal-input taro-input-core::-moz-placeholder,.portal-input .weui-input::-moz-placeholder{color:#a8abb2}.portal-input taro-input-core::placeholder,.portal-input .weui-input::placeholder{color:#a8abb2}.portal-error{margin-top:14PX;padding:10PX 12PX;border:1PX solid var(--portal-error-border);border-radius:8PX;background:var(--portal-error-bg);color:var(--portal-error-text);font-size:13PX;line-height:1.5}.portal-submit-button{width:100%;height:46PX;min-height:46PX;margin-top:20PX;display:flex;align-items:center;justify-content:center;border:0;border-radius:8PX;background:var(--portal-primary);color:#fff;font-size:15PX;font-weight:800;line-height:46PX;box-shadow:none}.portal-form-card--student .portal-submit-button{height:52PX;min-height:52PX;margin-top:22PX;border-radius:16PX;background:linear-gradient(135deg,var(--portal-student-blue) 0%,var(--portal-student-blue-deep) 100%);font-size:16PX;line-height:52PX;box-shadow:0 12PX 24PX #155dfc33}.portal-form-card--student .portal-submit-button--hover{background:linear-gradient(135deg,#1d4ed8,#1e40af)}.portal-form-card--student .portal-error{border-color:#fecaca;border-radius:14PX;background:#fef2f2}.portal-submit-button:after{border:0}.portal-submit-button--hover{background:var(--portal-primary-hover)}.portal-submit-button[disabled],.portal-submit-button.is-disabled{opacity:.62}.portal-form-card__tip{margin-top:14PX;color:var(--portal-text-secondary);font-size:13PX;line-height:1.6}@media (max-width: 480PX){.portal-screen{padding:18PX 12PX}.portal-shell{min-height:calc(100vh - 36PX)}.portal-form-card{padding:22PX 16PX}.portal-screen--student{padding:0}.portal-screen--student .portal-shell{width:100%;max-width:none;min-height:100dvh;padding:0 0 24PX}.portal-student-hero{margin:0;padding:20PX 18PX 70PX}.portal-student-hero__title{font-size:28PX}.portal-form-card--student{padding:22PX 16PX 20PX}.portal-entry-label{font-size:22PX}.portal-organization-chip{align-items:flex-start;flex-direction:column;gap:4PX}.portal-organization-chip__value{text-align:left}}